Publications

Journal Publications since January 2000

Time domain metrology with optical tweezers, G. Carlse, K. Borsos, T. Vacheresse, A. Pouliot, E. Ramos, J. Randhawa, C. Walsh, and A. Kumarakrishnan, Proc. SPIE 12447, Quantum Sensing, Imaging, and Precision Metrology, 124470G (2023) (5 pages)

Accurate determination of an alkali-vapour–inert-gas diffusion coefficient using coherent transient emission from a density grating, A. Pouliot, G. Carlse, T. Vacheresse, and A. Kumarakrishnan, SPIE Conference Proceedings 12016, 120160Q (2022)

Accurate determination of an alkali-vapour–inert-gas diffusion coefficient using coherent transient emission from a density grating, A. Pouliot, G. Carlse, H. C. Beica, T. Vacheresse, and A. Kumarakrishnan (York University), U. Shim, S. B. Cahn, A. Turlapov, and T. Sleator (New York University), Physical Review A 103, 023112 (2021)

Technique for Rapid Mass Determination of Airborne Microparticles Based on Release and Recapture from an Optical Dipole Force Trap, G. Carlse, K. B. Borsos, H. C. Beica, T. Vacheresse, A. Pouliot, J. Perez-Garcia, A. Vorozcovs, B. Barron, S. Jackson, L. Marmet and A. Kumarakrishnan, Physical Review Applied 14, 024017 (2020)

Technique for magnetic moment and magnetic state reconstruction of laser-cooled atoms using direct imaging, G. Carlse, A. Pouliot, T. Vacheresse, A. Carew, H. C. Beica, S. Winter, and A. Kumarakrishnan, Journal of the Optical Society of America B 37, 1419-1427 (2020)

Laboratory Courses on Laser Spectroscopy and Atom Trapping, H. C. Beica, S. Winter, C. Mok, B. Barrett, R. Berthiaume, A. Vorozcovs, F. Yachoua, N. Afkhami-Jeddi, M. Aggarwal, G. Carlse, A. Pouliot, K. Borsos, T. Vacheresse, R. Marants, and A. Kumarakrishnan, Atoms, 8, 25 (2020)

Development of a Technique for Precise Determination of Atomic Lifetimes Based on Photon Echoes, H. C. Beica, A. Pouliot, P. Dowling, A. Carew, T. Vacheresse, G. Carlse, L. Marmet, A. Kumarakrishnan, Physical Review A, 101, 033408 (2020)

Characterization and Applications of Auto-locked Vacuum Sealed Diode Lasers for Precision Metrology, H. C. Beica, A. Pouliot, A. Carew, A. Vorozcovs, N. Afkhami-Jeddi, T. Vacheresse, G. Carlse, P. Dowling, B. Barron, A. Kumarakrishnan, Review of Scientific Instruments 90, 085113 (2019)

Investigations of optical pumping for magnetometry using an auto-locking laser system, A. Pouliot, H. C. Beica, A. Carew, A. Vorozcovs, G. Carlse, B. Barrett, A. Kumarakrishnan, Proc. SPIE 10637, Laser Technology for Defense and Security XIV, 106370A (2018)

Auto-locking waveguide amplifier system for lidar and magnetometric applications, A. Pouliot, H. C. Beica, A. Carew, A. Vorozcovs, G. Carlse, A. Kumarakrishnan, Proc. SPIE 10514, High-Power Diode Laser Technology XVI, 105140S (2018)

An Auto-Locked Laser System for Precision Metrology and LIDAR Applications, H. C. Beica, A. Carew, A. Vorozcovs, P. Dowling, A. Pouliot, B. Barron, and A. Kumarakrishnan, Laser Radar Technology and Applications XXII, Proc. SPIE 101910K-101910K-6, (2017)

An Auto-Locked Diode Laser System for Precision Metrology, H. C. Beica, A. Carew, A. Vorozcovs, P. Dowling, A. Pouliot, G. Singh, and A. Kumarakrishnan, High-Power Diode Laser Technology XV, Proc. SPIE 100860W-100860W-6, (2017)

Prospects for Precise Measurements with Echo Atom Interferometry, B. Barrett, A. Carew, H. Beica, A. Vorozcovs, A. Pouliot, and A. Kumarakrishnan, Atoms, 4, 19 (2016)

Demonstration of improved sensitivity of echo interferometers to gravitational acceleration, C. Mok, B. Barrett, A. Carew, R. Berthiaume, S. Beattie, and A. Kumarakrishnan, Physical Review A 88, 023614 (2013)

Measuring the atomic recoil frequency using a modified grating-echo atom interferometer, B. Barrett, A. Carew, S. Beattie, and A. Kumarakrishnan, Physical Review A 87, 033626 (2013)

Atom-interferometric techniques for measuring uniform magnetic field gradients and gravitational acceleration, B. Barrett, I. Chan, and A. Kumarakrishnan, Physical Review A 84, 063623 (2011)

Time Domain Interferometry With Laser Cooled Atoms, B. Barrett, I. Chan, C. Mok, A. Carew, I. Yavin, (McMaster U.), A. Kumarakrishnan (York University), S, B. Cahn (Yale U.) and T. Sleator (NYU), Advances in Atomic, Molecular and Optical Physics Volume 60 Chapter 3, Elsevier (2011) (Edited by E. Arimondo, P.R. Berman and C.C. Lin)

A Precise Determination of Atomic g-factor Ratios from a Dual Isotope Magneto-Optical Trap, I. Chan, B. Barrett, and A. Kumarakrishnan,  Physical Review A 84, 032509 (2011)

Numerical Simulation of a Multilevel Atom Interferometer, B. Barrett, I. Yavin (NYU), S. Beattie, and A. Kumarakrishnan, Physical Review A 82, 023625 (2010).

Magnetic Coherence Gratings in a High-Flux Atomic Beam, A. Tonyushkin, A. Kumarakrishnan, A. Turlapov, and T. Sleator, European Journal of Physics D 58, 39 (2010).

Progress toward a precision measurement of the atomic recoil frequency using an echo-type atom interferometer, B. Barrett, S. Beattie, A. Carew, I. Chan, C. Mok, I. Yavin (New York University) and A. Kumarakrishnan, Proc. SPIE 7993, 79930Y
(2010)

Atom-Interferometric Studies of Light Scattering.  S. Beattie, B. Barrett, I. Chan, C. Mok, I. Yavin (Princeton University) and A. Kumarakrishnan. Physical Review A 80, 013618 (2009).>

Technique for Measuring Atomic Recoil Frequency  Using Coherence Functions.  S. Beattie, B. Barrett, I. Chan, C. Mok, I. Yavin (Princeton University), and A. Kumarakrishnan.  Physical Review A 79, 021605 (R) (2009).

Properties of Magnetic Sublevel Coherences for Precision Measurements, I. Chan, A. Andreyuk, S. Beattie, B. Barrett, C. Mok, M. Weel, and A. Kumarakrishnan, Physical Review A 78, 033418 (2008).

Observation of Superfluorescent Emissions from Laser-Cooled Atoms, E. Paradis, B. Barrett, A. Kumarakrishnan (York University), R. Zhang, and G. Raithel (University of Michigan), Physical Review A 77, 043419 (2008).

Influence of Spontaneous Emission on a Single-State Atom Interferometer, S. Beattie, B. Barrett, M. Weel, I. Chan, C. Mok, S. B. Cahn (Yale University), and A. Kumarakrishnan, Physical Review A 77, 013610 (2008).

Measurement of Excited-State Lifetime Using Two-Pulse Photon Echoes in Rubidium Vapor, E. A. Rotberg, B. Barrett, S. Beattie, S. Chudasama, M. Weel, I. Chan, and A. Kumarakrishnan, Journal of the Optical Society of America B 24, 671 (2007).

Effect of A Magnetic Field Gradient and Gravitational Acceleration on a Time-Domain Grating-Echo Interferometer, M. Weel, I. Chan, S. Beattie, A. Kumarakrishnan (York University), D. Gosset (University of British Columbia), and I. Yavin (Harvard University), Physical Review A 73, 063624 (2006).

Tools for Laser Spectroscopy: The Design and Construction of a Faraday Isolator, S. Winter, C. Mok, and A. Kumarakrishnan, Canadian Journal of Physics 84, 845 (2006).

Design and Construction of an Efficient Electro-Optic Modulator for Laser Spectroscopy, C. Mok, M. Weel, E. Rotberg, and A. Kumarakrishnan, Canadian Journal of Physics 84, 775 (2006).

Collision Induced Superfluorescence, A. Kumarakrishnan, S. Chudasama, and X. L. Han, Journal of the Optical Society of America B, 22 1538 (2005).

Measurements of Temperature Scaling Laws in an Optically Dense Magneto-Optical Trap, A. Vorozcovs, M. Weel, S. Beattie, S. Cauchi, and A. Kumarakrishnan, Journal of the Optical Society of America B 22, 943 (2005).

Optical Nutation in Cold 85Rb Atoms, U. Shim, S. B. Cahn, A. Kumarakrishnan, T. Sleator, and J. T. Kim, Japanese Journal of Applied Physics 44 (1A), 168 (2005).

A Home-Built Lock-In Amplifier for Laser Frequency Stabilization, K. Sowka, M. Weel, S. Cauchi, L. Cockins, and A. Kumarakrishnan, Canadian Journal of Physics 83, 907 (2005).

Absorption Spectroscopy of Trapped Rubidium Atoms, S. Cauchi, A. Vorozcovs, M. Weel, S.Beattie, O. Gagnon, and A. Kumarakrishnan, Canadian Journal of Physics 82, 905 (2004).

Observation of Ground-State Ramsey Fringes, M. Weel and A. Kumarakrishnan, Physical Review A 67, 061602 (R) (2003).

Superfluorescence Polarization: Signature of Collisional Redistribution, A. Kumarakrishnan, S. Chudasama, and X. L. Han, Physical Review A 68, 033801 (2003).

A High Speed Modulated Retro-Reflector for Lasers Using an Acousto-Optic Modulator, G. Spirou, I. Yavin, M. Weel, A. Vorozcovs, and A. Kumarakrishnan (York University), P. R. Battle (AdvR Inc.), and R. C. Swanson Resonon Inc), Canadian Journal of Physics 81, 625 (2003).

Calculation of the Transfer Efficiency between Dual Magneto-Optical Traps and Simulation of a Ioffe Trap for Bose- Einstein Condensation, I. Yavin, T. Mikaelian, and A. Kumarakrishnan, Canadian Journal of Physics 81, 651 (2003).

A High-Speed Modulated Retro-Reflector for Lasers Free-Space Communication Based on Electro-Optic Phase Modulation, T. Mikaelian, M. Weel, and A. Kumarakrishnan (York University), P. R. Battle (AdvR Inc.), and R. C. Swanson (Resonon Inc.), Canadian Journal of Physics 81, 639 (2003).

Periodic Structures Generated In a Cloud of Cold Atoms, D. V. Strekalov, A. Turlapov, A. Kumarakrishnan, and T. Sleator, Physical Review A 66, 023601 (2002).

Optical Free Induction Decay In Cold 85Rb Atoms, U. Shim, S. Cahn, A. Kumarakrishnan, T. Sleator, and J. Kim, Japanese Journal of Applied Physics 41 (6A), 3688 (2002).

A Calculation of the Time of Flight Distribution of Trapped Atoms, I. Yavin, M. Weel, A. Andreyuk, and A. Kumarakrishnan, American Journal of Physics 70, 149 (2002).

Laser Frequency Stabilization Using a Lock-In Amplifier, M. Weel and A. Kumarakrishnan, Canadian Journal of Physics 80, 1449 (2002).

A high-speed retro-reflector for free-space communication based on electro-optic phase modulation, T. Mikaelian, M.Weel, and A. Kumarakrishnan, P. R. Battle and R. C. Swanson, IEEE Aerospace Conference Proceedings, 3, 1487 (2002)

A high-speed modulated retro-reflector for lasers, G. Spirou, I. Yavin, M. Weel, T. Mikaelian, A. Vorozcovs, A. Andreyuk, and A. Kumarakrishnan, P. R. Battle and R. C. Swanson, IEEE Aerospace Conference Proceedings, 3, 1481 (2002)

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Invited Talks

Improving the sensitivity grating-echo atom interferometers for measurements of gravity, G. Carlse, J. Randhawa, A. Pouliot, T. Vacheresse, E. Ramos and A. Kumarakrishnan, SPIE Quantum West, San Francisco, January 2024

Time Domain Metrology with Optical Tweezers, G. Carlse, K. Borsos, T. Vacheresse, A. Pouliot, E. Ramos, J. Randhawa, C. Walsh and A. Kumarakrishnan, SPIE Quantum West, San Francisco, January 2023

Accurate determination of diffusion coefficients for magnetometry using coherent transient effects, SPIE Photonics West, San Francisco, January 2022

Applications of Auto-locked Laser Systems for Precision Metrology, CAP Congress, June 2018

Prospects for Precision Measurements with Echo Atom Interferometers, Advances in Interferometry Workshop, IEEE Photonics Society, MIT Lincoln Laboratory, April 2018

Progress Toward a Precision Measurement of the Atomic Recoil Frequency Using A Grating Echo Interferometer, Frontiers in Optics 2012/Laser Science XXVIII, Rochester, New York October 2012

Measurements of Gravitational Acceleration with an Echo Interferometer, Cross Border Workshop in Laser Science, Rochester, New York, June (2011)

Progress Towards a Precision Measurement of the Atomic Recoil Frequency Using an Echo-Type Atom Interferometer, The International Conference on Coherent and Nonlinear Optics, Kazan, Russia, August 2010.

Proposal for Measuring the Universal Gravitational Constant at SNO Using Laser Cooled Atoms, SNOLAB workshop, October 2008.

Investigation of Spontaneous Emission and Decoherence due to Light Scattering on an Atom Interferometer, Canadian Institute for Advanced Research, Meeting on Cold Atoms, Banff, April 2008.

Observation of Triggered Superfluorescent Emissions from Laser-Cooled Atoms, Canadian Institute for Advanced Research, Meeting on Cold Atoms, Banff, April 2008.

Precision Measurements Using Laser Cooled Atoms, CAP Congress, Vancouver, June 2005.

Single State Atom Interferometry Using Grating Echoes, DAMOP, Tucson, May 2004.

Precision Measurements of Atomic Recoil and Gravity at the ppm Level Using Atom Interferometry, Cold Atom Workshop, Banff, February 2004.

New Studies of Superfluorescence, Third Annual Cross-Border Workshop on Laser Science, Toronto, May 2001.

Atom Interferometry Using Laser cooled atoms, CAP congress, Toronto, June 2000.

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Conference Presentations

Improving the sensitivity of an echo atom interferometer for precision measurements of gravity and atomic recoil, G. Carlse, J. Randhawa, A. Pouliot, T. Vacheresse, E. Ramos, and A. Kumarakrishnan, International Summer School in Quantum Technologies, Birmingham, UK, August 2023

Inexpensive Radio Frequency Synthesizer for Atom Interferometry with Cold Atoms, J. Randhawa, G. Carlse, T. Vacheresse, E. Ramos, A. Pouliot, and A. Kumarakrishnan, NSERC USRA Conference, Toronto, August 2023

Simulations of microparticles in dual-beam optical dipole force traps, C. Walsh, G. Carlse, and A. Kumarakrishnan, NSERC USRA Conference, Toronto, August 2023

Measurements of Rb-Inert Gas Diffusion Coefficients Using Coherent Emission from Optical Lattices, A. Pouliot, G. Carlse, T. Vacheresse, E. Ramos, J. Randhawa, and A. Kumarakrishnan, ICOLS, Boulder, June 2023

Development of a modulation-free laser frequency stabilization setup operating at both 780 nm and 795 nm for atomic lifetime measurements, J. Randhawa, T. Vacheresse, G. Carlse, E. Ramos, C. Walsh, A. Pouliot, and A. Kumarakrishnan, CUPC, Guelph, October 2022

Characterization of microparticles in free space and liquid cultures using optical tweezers, E. Ramos, G. Carlse, J. Randhawa, C. Walsh, T. Vacheresse, A. Pouliot and A. Kumarakrishnan, CUPC, Guelph, October 2022

Characterization of Microparticles using Optical Tweezers, C. Walsh, G. Carlse, J. Randhawa, T. Vacheresse, E. Ramos, A. Pouliot and A. Kumarakrishnan, York University NSERC USRA Conference, Toronto, August 2022

Development of a Modulation-Free Laser Frequency Stabilization Setup for Atomic Lifetime Measurements, J. Randhawa, T. Vacheresse, G. Carlse, A. Pouliot, E. Ramos, and A. Kumarakrishnan, York University NSERC USRA Conference, Toronto, August 2022

Determination of alkali-vapour–inert-gas diffusion coefficients using coherent transient emission from a density grating, Alexander Pouliot, Gehrig M. Carlse, Thomas Vacheresse, Hermina C. Beica, and A. Kumarakrishnan, DAMOP, Orlando, May 2022.

An Effective Approach for Teaching Laboratory Courses on Laser Spectroscopy and Atom Trapping, Alexander Pouliot, Hermina C. Beica, Gehrig M. Carlse, Shoshana Winter, Carson Mok, Brynle Barrett, Robert Berthiaume, Andrew Vorozcovs, Fadi Yachoua, Nima Afkhami-Jeddi, Monika Aggarwal, Kevin B. Borsos, Thomas M. Vacheresse, Raanan Marants, and A. Kumarakrishnan, DAMOP, Orlando, May 2022.

Characterization and Applications of Auto-locked Vacuum Sealed Diode Lasers for Precision Metrology, Alexander Pouliot, Hermina C. Beica, Adam C. Carew, Andrew Vorozcovs, Nima Afkhami-Jeddi, Thomas M. Vacheresse, Gehrig M. Carlse, Patrick Dowling, Boris Barron, and A. Kumarakrishnan, DAMOP, Orlando, May 2022.

Progress toward precise determination of atomic lifetimes using photon echoes, T. Vacheresse, G. Carlse, A. Pouliot, H. C. Beica, L. Marmet, and A. Kumarakrishnan, DAMOP, Orlando, May 2022.

Magnetic moment reconstruction of cold atoms using direct imaging and prospects for measuring magnetic sublevel distributions, G. Carlse, A. Pouliot, T. Vacheresse, A. Carew, H. C. Beica, S. Winter, and A. Kumarakrishnan, DAMOP, Orlando, May 2022

Rapid mass determination of airborne microparticles based on release and recapture from a free-space optical dipole force trap, G. Carlse, K. B. Borsos, H. C. Beica, T. Vacheresse, A. Pouliot, J. Perez-Garcia, A. Vorozcovs, B. Barron, S. Jackson, L. Marmet and A. Kumarakrishnan, DAMOP, Orlando, May 2022.

Characterization of a Modulation-Free Feedback Loop for Laser Frequency Stabilization, J. Randhawa, T. Vacheresse, E. Ramos, A. Pouliot and A. Kumarakrishnan, CUPC, Toronto, November 2021

Characterization of spatial profilers for improving the precision of diffusion measurements using a coherent transient technique, E. Ramos, A. Pouliot, T. Vacheresse, M. Kumar, and A. Kumarakrishnan, CUPC, Toronto, November 2021.

Particle Characterization Using Optical Tweezers, A. Schnell, G. Carlse, K. Borsos, T. Vacheresse, and A. Kumarakrishnan, CUPC, Toronto, November 2021.

Finite-element design of Faraday Isolators, F. Hannan, A. Carew, G. Carlse, A. Pouliot, T. Vacheresse, and A. Kumarakrishnan, Lassonde Undergraduate Summer Research Conference, Toronto, July 2020

Precise Determination of Atomic Lifetimes Based on Optical Photon Echoes, H. C. Beica, A. Pouliot, P. Dowling, A. Carew, T. Vacheresse, G. Carlse, L. Marmet, and A. Kumarakrishnan, Frontiers in Optics/Laser Science - OSA Meeting, Washington D. C., September 2019.

Characterization and applications of auto-locked vacuum-sealed diode lasers for precision metrology, H. C. Beica, A. Pouliot, A. Carew, A. Vorozcovs, N. Afkhami-Jeddi, T. Vacheresse, G. Carlse, P. Dowling, B. Barron, and A. Kumarakrishnan, Frontiers in Optics/Laser Science - OSA Meeting, Washington D. C., September 2019.

Comparative Investigations of Magnetometers based on Atomic Populations and Coherences, A. Pouliot, G. Carlse, H. C. Beica, T. Vacheresse, and A. Kumarakrishnan, Conference on Coherence and Quantum Optics, Rochester, August 2019.

Technique for In-Situ Measurement of Magnetic Sublevel Populations in a Magneto-Optical Trap Based on Free-Expansion Imaging, G. Carlse, A. Pouliot, T. Vacheresse, A. Carew, H. C. Beica, and A. Kumarakrishnan, Conference on Coherence and Quantum Optics, Rochester, August 2019.

Optical Tweezers Experiments with Home Built laser systems, K. Borsos, G. Carlse, H. Beica, J. Perez-Garcia, A. Pouliot, T. Vacheresse, L. Marmet, and A. Kumarakrishnan, York University NSERC USRA Conference, Toronto, July 2019.

Auto-locking diode laser system for lidar and magnetometric applications, A. Pouliot, H. C. Beica, A. Carew, A. Vorozcovs, G. Carlse, B.Barrett, and A. Kumarakrishnan, SPIE Defense and Commercial Sensing, Orlando, April 2018

Auto-locking Waveguide Amplifier System for Lidar and Magnetromeric Applications, A. Pouliot, H. C. Beica, A. Carew, A. Vorozcovs, G. Carlse, and A. Kumarakrishnan, SPIE Photonics West (LASE), San Fransisco, January 2018.

Applications of auto-locked diode lasers, H.C. Beica, A. Carew, A. Vorozcovs, P. Dowling, A. Pouliot, B. Barron, and A. Kumarakrishnan, Canadian-American-Mexican Graduate Student Physics Conference, Washington DC, 2017.

An auto-locked laser system for precision metrology and lidar applications, H. C. Beica, A. Carew, A. Vorozcovs, P. Dowling, A. Pouliot, B. Barron, and A. Kumarakrishnan, SPIE DCS Defense + Security, Anaheim, April 2017.

Auto-locked laser systems for precision metrology, H. C. Beica, A. Carew, A. Vorozcovs, P. Dowling, A. Pouliot, G. Singh, and A. Kumarakrishnan, SPIE Photonics West LASE, San Francisco, January 2017.

A Review of the Allan Variance and its Applications, B. Barron, G. Carlse, H. Beica, A. Pouliot, and A. Kumarakrishnan, CUPC, Halifax, October 2016.

Design and Construction of Semiconductor Waveguide Amplifiers for Atomic Physics Experiments, G. Carlse, A. Pouliot, H. Beica and A. Kumarakrishnan, CUPC, Halifax, October 2016.

Free Space Optical Trapping of Colloidal Ink Droplets, J. Perez, B. Barron, G. Carlse, H. Beica, A. Pouliot and A. Kumarakrishnan, CUPC, Halifax, October 2016.

Development of a Home-built Tapered Amplifier Laser System, G. Carlse, A. Pouliot, H. Beica, G. Singh, A. Schiff-Kearn, S. Jackson, J. Goobie and A. Kumarakrishnan, CUPC, Peterborough, October 2015.

Applications of High Speed Data Acquisition in Atomic Physics Experiments, P. Dowling, A. Vorozcovs, H. Beica, A. Carew and A. Kumarakrishnan, CUPC, Kingston, October 2014.

Free-space Optical Tweezers, S. Jackson, H. Beica, P. Dowling and A. Kumarakrishnan, CUPC, Kingston, October 2014.

Interference-filter-stabilized external-cavity diode lasers for precise measurements of gravitational acceleration, N. Afkhami-Jeddi, A. Sarracini, A. Vorozcovs and A. Kumarakrishnan, CUPC, Vancouver, October 2012.

Laser intensity stabilization using an RF feedback system A. Sarracini, N. Afkhami-Jeddi and A. Kumarakrishnan, CUPC, Vancouver, October 2012.

Rotation measurement using a grating echo interferometer, A. Carew, B. Barrett, and A. Kumarakrishnan, DAMOP, Orange County, California, June 2012.

Measuring the atomic recoil frequency with a grating echo atom interferometer, B. Barrett, A. Carew and A. Kumarakrishnan, DAMOP, Orange County, California, June 2012.

Measurements of gravitational acceleration from an echo atom interferometer, C. Mok, A. Carew, B. Barrett, R. Berthiaume and A. Kumarakrishnan, DAMOP, Orange County, California, June 2012.

Precise determination of atomic g-factor ratios from a dual isotope magneto-optical trap, I. Chan, B. Barrett, A. Carew, C. Mok, and A. Kumarakrishnan, DAMOP, Orange County, California, June 2012.

Atom trapping laboratory for upper level undergraduate students, C. Mok, S. Winter, H. Beica, B. Barrett, R. Berthiaume, A. Vorozcovs, F. Yachoua, N. Afkhami-Jeddi, R. Marants, M. Aggarwal and A. Kumarakrishnan, DAMOP, Orange County, California, June 2012.

Measuring Atomic Recoil using a Grating Echo Atom Interferometer, B. Barrett, A. Carew and A. Kumarakrishnan, Canadian Institute for Advanced Research, Meeting on Cold Atoms, Banff, February 2012.

Analysis of suitability of homebuilt diode lasers for precise measurements of gravitational acceleration. N. Afkhami-Jeddi, R. Marants, R. Berthiaume and A. Kumarikrishnan. CUPC, Saskatoon, October 2011.

Precision measurements of atomic g factor ratios using a dual isotope MOT, I. Chan, B. Barrett and A. Kumarakrishnan, Cross Border Workshop in Laser Science, Rochester, June 2011.

Active Feedback System for Laser Intensity Stabilization, E. Davidson, I. Chan, B. Barrett, C. Mok, A. Carew and A. Kumarakrishnan, CUPC, Halifix, October 2010.

New Experiments in Atomic and Laser Physics for Undergraduate Students, H. Beica, B. Barrett, C. Mok, A. Vorozcovs, A. Sibilia, H. Morrison, and A. Kumarakrishnan, CUPC, Halifax, October 2010.

Progress Towards a Precision Measurement of Atomic Recoil Frequency Using an Echo Interferometer, B. Barrett, A. Carew, S. Beattie, I. Chan, C. Mok, R. Berthiaume, and A. Kumarakrishnan, DAMOP, Houston, May 2010.

Simulations of a Multi-Level Atom Interferometer, B. Barrett, I. Chan, C. Mok, A. Carew, R. Berthiaume, and A. Kumarakrishnan (York University), I. Yavin (New York University), DAMOP, Houston, May 2010.

Precision Measurements of Atomic g Factor Ratios Using a Dual Species MOT, I. Chan, R. Berthiaume, B. Barrett, C. Mok. A. Carew, and A. Kumarakrishnan, DAMOP, Houston, May 2010.

Precision Atom Interferometric Measurement of Gravitational Acceleration, C. Mok, R. Berthiaume, S. Beattie, B. Barrett, I. Chan, and A. Kumarakrishnan, DAMOP, Houston, May 2010.

Realization of an Inexpensive Multi-Channel Frequency Synthesizer, A. Carew, R. Berthiaume, C. Mok, I. Chan, B. Barrett, M. Weel, and A. Kumarakrishnan, DAMOP, Houston, May 2010.

An Auto-Lock Laser System for Long Term Frequency Stabilization, R. Berthiaume, A. Vorozcovs, and A. Kumarakrishnan, DAMOP, Houston, May 2010.

Radio Frequency Power Stabilization by Active Feedback, K. Reiter, C. Mok, S. Beattie, I. Chan, B. Barrett, E. Davidson, R. Berthiaume and A. Kumarakrishnan, CUPC, Edmonton, October 2009.

Atom Interferometric Studies of Light Scattering, S. Beattie, B. Barrett, I. Chan, C. Mok, I. Yavin (Princeton University), and A. Kumarakrishnan, CAP Congress, Moncton, June 2009.

Properties of Magnetic Sublevel Coherences for Precision Measurements, I. Chan, S. Beattie, B. Barrett, C. Mok, and A. Kumarakrishnan, CAP Congress, Moncton, June 2009.

A New Technique for Measuring Atomic Recoil Frequency Using Coherence Functions, S. Beattie, B. Barrett, I. Chan, C. Mok, I. Yavin (Princeton University), and A. Kumarakrishnan, DAMOP, Charlottesville, May 2009.

An Inexpensive Frequency Synthesizer for Optical Lattice Experiments, R. Berthiaume, I. Chan, M. Weel, and A. Kumarakrishnan, CUPC, Toronto, October 2008.

Analysis of Time Domain Measurements of Atomic Recoil Frequency in Laser Cooled Rubidium Gas, K. Anosov, B. Barrett, M. Weel, S. Beattie, C. Mok, I. Chan, I. Yavin (Princeton University), and A. Kumarakrishnan, CUPC, Toronto, October 2008.

An Automated System for Laser Frequency Stabilization Using Digital Feedback, A. Vorozcovs, V. Popovici, and A. Kumarakrishnan, CAP Congress, Quebec City, June 2008.

Numerical Simulations of a Single State Atom Interferometer, B. Barrett, C. Mok, S. Beattie, and A. Kumarakrishnan, CAP Congress, Quebec City, June 2008.

Progress on Measurements of Gravitational Acceleration Using a Single State Atom Interferometer, C. Mok, S. Beattie, B. Barrett, I. Chan, and A. Kumarakrishnan, CAP Congress, Quebec City, June 2008.

Evolution of Magnetic Coherences in Magnetic Fields, I. Chan and A. Kumarakrishnan, CAP Congress, Quebec City, June 2008.

Atom Trapping Laboratory For Upper Level Undergraduates, C. Mok, S. Winter, B. Barrett, V. Popovici, R. Berthiaume, M. Aggarwal, M. F. Yachoua, and A. Kumarakrishnan, CAP Congress, Quebec City, June 2008.

Improving the Precision Measurement of the Atomic Recoil Frequency Using a Single-State Time-Domain Atom Interferometer, B. Barrett, S. Beattie, I. Yavin (Princeton University), C. Mok, I. Chan, and A. Kumarakrishnan, CAP Congress, Quebec City, June 2008.

Investigation of Light Scattering and Collisions on an Atom Interferometer, S. Beattie, I.Chan, and A. Kumarakrishnan, CAP Congress, Quebec City, June 2008.

Effect of Spontaneous Emission on Matter Wave Interference, S. Beattie, B. Barrett, M. Weel, I. Chan, C. Mok, S. B. Cahn (Yale University), and A. Kumarakrishnan, CAP Congress, Quebec City, June 2008.

Observation of Superfluorescent Emissions from Laser-Cooled Atoms, E. Paradis, B. Barrett, and A. Kumarakrishnan (York University), R. Zhang and G. Raithel (University of Michigan), CAP Congress, Quebec City, June 2008.

Influence of Spontaneous Emission on a Single-State Atom Interferometer, S.Beattie, B. Barrett, M. Weel, I. Chan, C. Mok (York University), S. B. CAHN (Yale University), A. Kumarakrishnan (York University), DAMOP, State College, May 2008.

Decoherence Due to Light Scattering and Collisions on a Single State Atom Interferometer, S. Beattie, I. Chan, and A. Kumarakrishnan, DAMOP, State College, May 2008.

Monte Carlo Wavefunction Simulation of a Matter Wave Interferometer, B. Barrett, C. Mok, S. Beattie, and A. Kumarakrishnan, DAMOP, State College, May 2008.

Properties of Magnetic Sublevel Coherences for Precision Measurements, I. Chan and A. Kumarakrishnan, DAMOP, State College, May 2008.

Atom Trapping Laboratory for Upper Level Undergraduates, S. Winter, B. Barrett, C. Mok, V. Popovici, R. Berthiaume, M. Aggarwal, F. Yachoua, and A. Kumarakrishnan, CUPC, Vancouver, October 2007.

A home-built High Power Master Oscillator Power Amplifier (MOPA) System for Atom Trapping and Laser Spectroscopy, V. Popovici, R. Berthiaume, and A. Kumarakrishnan, CUPC, Vancouver, October 2007.

Effects of Light Scattering and Collisions on a Single State Atom Interferometer, S. Beattie, I. Chan, and A. Kumarakrishnan, DAMOP, Calgary, June 2007.

Properties of Magnetic Sublevel Coherences for Precision Measurements, I. Chan, S. Beattie, and A. Kumarakrishnan, DAMOP, Calgary, June 2007.

Measurement of Gravitational Acceleration Using a Single State Atom Interferometer, C. Mok, S. Beattie, I. Chan, and A. Kumarakrishnan, DAMOP, Calgary, June 2007.

Monte Carlo Simulation of Spontaneous Emission from Dressed States, B. Barrett and A. Kumarakrishnan, DAMOP, Calgary, June 2007.

Superfluorescence from Laser-Cooled Atoms, E. Paradis, B. Barrett, A. Kumarakrishnan (York University), and R. Zhang, G. Raithel, (University of Michigan), DAMOP, Calgary, June 2007.

Superfluorescence from Laser-Cooled Atoms, E. Paradis, B. Barrett, A. Kumarakrishnan (York University), and R. Zhang, G. Raithel, (University of Michigan), DAMOP, Calgary, June 2007.

An Inexpensive Grating Stabilized Diode Laser for Laser Spectroscopy, V. Popovici, E. Paradis, C. Mok, B. Barrett, and A. Kumarakrishnan, CUPC, Fredericton, October 2006.

Tools for Laser Spectroscopy: The Design and Construction of a Faraday Isolator. S. Winter, C. Mok, and A. Kumarakrishnan, CUPC, Fredericton, October 2006.

Observation of Superfluorescent Emissions from Laser Cooled Rb Atoms, E. Paradis, B. Barrett, A. Kumarakrishnan (York University), and G. Raithel (University of Michigan), OSA, Rochester, October 2006.

Observation of Superfluorescence from Laser Cooled Rubidium Atoms, B. Barrett, E. Paradis, A. Kumarakrishnan (York University), and G. Raithel (University of Michigan), DAMOP, Knoxville, May 2006.

Effect of a Magnetic Field Gradient and Gravitational Acceleration on a Time Domain Grating Echo Interferometer, D. Gosset, (University of British Columbia), I. Yavin (Harvard University), M. Weel, I. Chan, S. Beattie, and A. Kumarakrishnan (York University), DAMOP, Knoxville, May 2006.

Measurement of Excited State Lifetime Using Two-Pulse Photon Echoes in Rubidium Vapor, E. Rotberg, S. Beattie, I. Chan, B. Barrett, E. Paradis, and A. Kumarakrishnan, DAMOP, Knoxville, May 2006.

Experimental Studies of Decoherence Using a Single State Atom Interferometer, S. Beattie, M. Weel, I. Chan, S. Chudasama, and A. Kumarakrishnan, DAMOP, Knoxville, May 2006.

Measurement of Atomic g Factor Ratios Using Laser Cooled Atoms, I. Chan, S. Beattie, and A. Kumarakrishnan, DAMOP, Knoxville, May 2006.

Design and Construction of an Efficient Electro-Optic Modulator for Laser Spectroscopy, C. Mok, W. Weel, E. Rotberg, and A. Kumarakrishnan, CUPC, London, October 2005.

Tools for Laser Spectroscopy: Design and Construction of a Faraday Isolator, S. Winter, C. Mok, and A. Kumarakrishnan, CUPC, London, October 2005.

Atom Trapping Laboratory for Upper Level Undergraduates at York University, F. Yachoua, I. Chan, S. Beattie, E. Rotberg, M. Weel, and A. Kumarakrishnan, CUPC, London, October 2005.

Collision Induced Superfluorescence, A. Kumarakrishnan, S. Chudasama, and X. L. Han, CAP Congress, Vancouver, June 2005.

A Precision Measurement of Atomic Recoil Frequency Using Grating Echoes, M. Weel, S Beattie, I Chan, E Rotberg, A. Vorozcovs, and A. Kumarakrishnan, CAP Congress, Vancouver, June 2005.

Measurement of Rubidium Excited State Lifetime, E. Rotberg, M. Weel, S. Beattie, I. Chan, and A. Kumarakrishnan, CAP Congress, Vancouver, June 2005.

Improved Measurements of Atomic Recoil Using Time Domain Atom Interferometry, S. Beattie, M. Weel, I. Chan, E. Rotberg, and A.Kumarakrishnan, CAP Congress, Vancouver, June 2005.

Precise Measurements of Atomic g Factor Ratios Using Trapped Rb Atoms, I. Chan, M. Weel, S. Beattie, E. Rotberg, A. Vorozcovs, A. Andreyuk, and A. Kumarakrishnan, CAP Congress, Vancouver, June 2005.

A Precision Measurement of Atomic Recoil Frequency Using Grating Echoes, M. Weel, S Beattie, I Chan, E Rotberg, and A Kumarakrishnan, DAMOP, Lincoln, May 2005.

Improved Measurements of Atomic Recoil Using Atom Interferometry, S. Beattie, M. Weel, I. Chan, E. Rotberg, and A. Kumarakrishnan, DAMOP, Lincoln, May 2005.

Precise Measurements of Atomic g Factor Ratios Using Trapped Rb Atoms, I. Chan, M. Weel, S. Beattie, E. Rotberg, A. Vorozcovs, A. Andreyuk, and A. Kumarakrishnan, DAMOP, Lincoln, May 2005.

Measurement of 85Rb Excited State Lifetime Using Two-Pulse Photon Echo, Eric Rotberg, Scott Beattie, Matthew Weel, Iain Chan, and A. Kumarakrishnan, DAMOP, Lincoln, May 2005.

Design and Construction of a Cold Rb Atomic Fountain, D. Gosset, M. Weel, E. Rotberg, I.Chan, and A. Kumarakrishnan, CUPC, Victoria, November 2004.

A Home-Built Electro-Optic Phase Modulator for Laser Frequency Stabilization, C. Mok, M. Weel, S. Beattie, and A. Kumarakrishnan, CUPC, Victoria, November 2004.

A Home-Built Lock-In Amplifier for Laser Frequency Stabilization, K. Sowka, M. Weel, S. Cauchi, L. Cockins, and A. Kumarakrishnan, CUPC, Victoria, November 2004.

Precision Measurement of Atomic Recoil Using Ground State Atom Interferometry, S. Beattie, M. Weel, I. Chan, E. Rotberg, and A. Kumarakrishnan, Photonics Research Ontario, Student Forum, Ottawa, September 2004.

Measurements of Temperature and New Measurement of Zeeman Shift In Trapped Rb Atoms, I. Chan, A. Andreyuk, M. Weel, S. Beattie, A. Vorozcovs, and A. Kumarakrishnan, Photonics Research Ontario, Student Forum, Ottawa, September 2004.

Measurements of Temperature Scaling Laws In a Magneto-Optical Trap In the Presence of Radiation Trapping, A. Vorozcovs, M. Weel, S. Beattie, S. Cauchi, and A. Kumarakrishnan, Photonics Research Ontario, Student Forum, Ottawa, September 2004.

Measurement of Atomic Recoil Using Ground State Atom Interferometry, M. Weel, S. Beattie, I. Chan, and A. Kumarakrishnan, DAMOP, Tucson, May 2004.

Study of Systematic Effects Pertaining to an Atom Interferometric Measurement of Atomic Recoil, S. Beattie, M. Weel, I. Chan, and A. Kumarakrishnan, DAMOP, Tucson, May 2004.

Measurements of Temperature and the Zeeman Shift of Trapped Rb Atoms , I. Chan, A. Andreyuk, M. Weel, S. Beattie, A. Vorozcovs, and A. Kumarakrishnan, DAMOP, Tucson, May 2004.

Measurements of Temperature Scaling Laws In an Optically Dense Magneto-Optical Trap, A. Vorozcovs, M. Weel, S. Beattie, S. Cauchi, and A. Kumarakrishnan, DAMOP, Tucson, May 2004.

A home-Built Lock-In Amplifier for Laser Frequency Stabilization, K. Sowka, M. Weel, S. Cauchi, L. Cockins, and A. Kumarakrishnan, CUPC, Montreal, October 2003.

Observation of Ground State Ramsey Fringes, M. Weel, S. Beattie, and A. Kumarakrishnan, CAP Congress, Charlottetown, June 2003.

Measurement of Temperature and Zeeman Shift Using Magnetic Sublevel Coherences In Trapped Rb Atoms, A. Andreyuk, M. Weel, A. Vorozcovs, and A. Kumarakrishnan, CAP Congress, Charlottetown, June 2003.

Measurements of Temperature and Scaling Laws In an Optically Dense Trap Using a CCD Camera, A.Vorozcovs, M.Weel, S. Cauchi and A.Kumarakrishnan, CAP Congress, Charlottetown, June 2003.

Progress Towards a Precision Measurement of the 85Rb 5S1/2 (F=3) - 5P3/2(F'=4) Natural Linewidth, S. Cauchi, A. Vorozcovs, M. Weel, and A. Kumarakrishnan, CAP Congress, Charlottetown, June 2003.

Superfluorescence Polarization - A Signature of Collisional Redistribution, S. Chudasama, A. Kumarakrishnan, and X. L. Han, CAP Congress, Charlottetown, June 2003.

A Calculation of the Time of Flight Distribution of Trapped Atoms and the Transfer Efficiency Between Dual Magneto-Optical Traps, I. Yavin and A. Kumarakrishnan, CAP Congress, Charlottetown, June 2003.

A High Speed Retro-Reflector for Free Space Communication Based on Electro-Optic Phase Modulation, T. Mikaelian, M. Weel, A. Kumarakrishnan, P. R. Battle, and R. C. Swanson, CAP Congress, Charlottetown, June 2003.

A High Speed Modulated Retro-Reflector for Lasers Using an Acousto-Optic Modulator, G. Spirou, I. Yavin, M. Weel, A. Vorozcovs, A. Kumarakrishnan, P. R. Battle, and R. C. Swanson, CAP Congress, Charlottetown, June 2003.

Observation of Ground State Ramsey Fringes, M. Weel, S. Beattie, and A. Kumarakrishnan, Fifth Annual Cross-Border Workshop on Laser Science, Waterloo, May 2003.

Measurement of Temperature and Zeeman Shift Using Magnetic Sublevel Coherences In Trapped Rb Atoms, A. Andreyuk, M. Weel, A. Vorozcovs, and A. Kumarakrishnan, Fifth Annual Cross-Border Workshop on Laser Science, Waterloo, May 2003.

Progress Towards a Precision Measurement of the Natural Linewidth In Laser Cooled Rubidium Atoms, S. Cauchi, A. Vorozcovs, M. Weel, and A.Kumarakrishnan, Fifth Annual Cross-Border Workshop on Laser Science, Waterloo, May 2003.

Measurements of Temperature and Scaling Laws In an Optically Dense Trap Using a CCD Camera, A.Vorozcovs, M.Weel, S. Cauchi, and A.Kumarakrishnan, Fifth Annual Cross-Border Workshop on Laser Science, Waterloo, May 2003.

Probing Gravity and the Mechanism of Laser Cooling Using a Magneto-Optical Trap, A.Vorozcovs, M.Weel, A.Andreyuk, and A.Kumarakrishnan, CUPC, Halifax, October 2002.

Laser Cooled Atoms - The Most Expensive Pressure Gauge?, S. Chudasama, M. Weel, S. Cauchi, A. Vorozcovs, and A. Kumarakrishnan, CUPC, Hailfax, October 2002.

Absorption Spectroscopy of Trapped Atoms, S. Cauchi, A. Vorozcovs, M. Weel, L. Cockins, and A. Kumarakrishnan, CUPC, Hailfax, October 2002.

Observation of Ground State Ramsey Fringes - A Measurement of Atomic Recoil In the Frequency Domain, M. Weel, A. Andreyuk, and A. Kumarakrishnan, ICAP, Cambridge, July 2002.

A Transparent Calculation of the Time of Flight Distribution of Trapped Atoms, I.Yavin, M. Weel, A. Andreyuk, and A. Kumarakrishnan, ICAP, Cambridge, July 2002.

A Calculation of the Time of Flight Distribution of Trapped Atoms, I.Yavin, M. Weel, A. Andreyuk, and A. Kumarakrishnan, CUPC, Winnipeg, November 2001.

Measuring the Temperature of Cold Atoms Using a Shutter-Controlled CCD Camera, A. Vorozcovs, M.Weel, O. Gagnon, and A. Kumarakrishnan, CUPC, Winnipeg, November 2001.

A High Speed Modulated Retro-Reflector for Lasers Based on an Acousto-Optic Modulator, G.Spirou, I.Yavin, M.Weel, T.Mikaelian, A.Vorozcovs, A.Andreyuk, and A.Kumarakrishnan (York University), P. R. Battle, and R.C.Swanson, (AdvR Inc.), CUPC, Winnipeg, November 2001.

A High-Speed Retro-Reflector for Free-Space Communication Based on Electro-Optic Phase Modulation, T. Mikaelian, M. Weel, A. Kumarakrishnan (York University), P.R. Battle, and R.C. Swanson (AdvR Inc.), CUPC, Winnipeg, November 2001.

Simulations of a Simplified Ioffe Trap for Realizing Bose-Einstein Condensation, T. Mikaelian, M. Weel, G. Spirou, A. Vorozcovs, A. Andreyuk, and A. Kumarakrishnan, DAMOP, London, May 2001.

Evolution of Zeeman Coherences In the Presence of Magnetic Fields, A. Andreyuk, M. Weel, and A. Kumarakrishnan, DAMOP, London, May 2001.

A High Speed Amplitude Modulated Retro-Reflector for Lasers, G. Spirou, T.Mikaelian, M. Weel, A.Vorozcovs, A. Andreyuk, A. Kumarakrishnan (York University), P.R. Battle, and R. C. Swanson (AdvR Inc.), DAMOP, London, May 2001.

High-Precision Shutter Control of a CCD Camera for Imaging Clouds of Ultra-Cold Atoms, A. Vorozcovs, M. Weel, G. Spirou, T. Mikaelian, A. Andreyuk, and A. Kumarakrishnan, CUPC, Quebec City, November 2000.

Locking Lasers to Trap Atoms, M. Weel, G. Spirou, A. Vorozcovs, T. Mikaelian, A. Andreyuk, and A. Kumarakrishnan, CUPC, Quebec City, November 2000.

Numerical Simulations of a Simplified Ioffe Trap for Realizing Bose-Einstein Condensation, T. Mikaelian, M. Weel, G. Spirou, A. Vorozcovs, A. Andreyuk, and A. Kumarakrishnan, CUPC, Quebec City, November 2000.

A High Speed Modulated Retro-Reflector for Lasers, G. Spirou, T.Mikaelian, M. Weel, A.Vorozcovs, A. Andreyuk, A. Kumarakrishnan, (York University), P. R. Battle, and R. C. Swanson (AdvR Inc.), CUPC, Quebec City, November 2000.

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