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Publications

  • P M Rupasinghe, Fiona Wee, Thomas Bullock, and Jiaxing Liu, Measurement of hyperfine constants and the isotope shift of rubidium 5P1/2 excited-state using saturated absorption spectroscopy, Phys. Scr. 98 045412 (2023)

 

  • V. V. Baturo, P. M. Rupasinghe, T. J. Sears, R. J. Mawhorter, J.-U. Grabow, and A. N. Petrov, Electric-field-dependent g factor for the ground state of lead monofluoride, PbF, Phys. Rev A 104, 012811 (2021)

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  • Daniel L. Maser, Eli Hoenig, B.-Y. Wang, P. M. Rupasinghe, S. G. Porsev, M. S. Safronova, and P. K. Majumder, High-precision measurement and ab initio calculation of the (6s2 6p2) 3P0→3P2 electric-quadrupole-transition amplitude in 208Pb, Phys. Rev. A 100, 052506 (2019)

 

  • N. B. Vilas, B.-Y. Wang, P. M. Rupasinghe, D.L. Maser, M. S. Safronova, U. I. Safronova, and P. K. Majumder, High-precision measurements and theoretical calculations of indium polarizabilities, Phys. Rev. A 97, 022507 (2018).

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  • Benjamin L. Augenbraun, Allison Carter, P. M. Rupasinghe, and P. K. Majumder, Measurement of the scalar polarizability of the Indium 6p1=2 excited state using two-tone frequency modulation spectroscopy in an atomic beam, Phy. Rev. A 94, 022515 (2016)

 

  • Thinh Q. Bui, David A. Long, Agata Cygan, Vincent T. Sironneau, Daniel W. Hogan, Priyanka M. Rupasinghe, Roman Ciuryo, Daniel Lisak, and Mitchio Okumura, Observations of Dicke narrowing and speed dependence in air-broadened CO2 lineshapes near 2.06 m, The Journal of Chemical Physics, 141, 174301 (2014)

 

  • James Coker, Haoquan Fan, C. P. McRaven, P. M. Rupasinghe, T. Zh. Yang, N. E. Shafer-Ray, and J. E. Furneaux, Cavity Dispersion Tuning Spectroscopy of Tellurium Near 444.4nm, J. Opt. Soc. Am. B Vol. 28, No. 12 (2011)

 

  • Richard J. Mawhorter, Benjamin S. Murphy, and Alexander L. Baum, Trevor J. Sears, T. Yang, P. M Rupasinghe, C. P. McRaven, and N. E. Shafer-Ray, Characterization of the ground X1 state of 206Pb19F, 207Pb19F, and 208Pb19F, Phys. Rev. A 84, 022508 (2011)

 

  • Lukas D. Alphei, Jens-Uwe Grabow, A. N. Petrov, Richard Mawhorter, Benjamin Murphy, Alexander Baum, Trevor J. Sears, T. Zh. Yang, P. M. Rupasinghe, C. P. McRaven, and N. E. Shafer-Ray, Precision Spectroscopy of the 207Pb19F molecule: implications for measurement of P-odd and T-odd eects, Phys. Rev. A 83, (2011)

 

  • P. Sivakumar, C.P. McRaven, P.M. Rupasinghe, T.Zh. Yang, N.E. Shafer-Ray, Trevor J. Sears, and Gregory E. Hall , Pseudo-continuous resonance enhanced multiphoton ionisation: application to the determination of the hyperne constants of 208Pb19F, Mol. Phys. 108, 927 (2010)

 

  • Milinda Rupasinghe and N. E. Shafer-Ray, Eect of the geometric phase on the possible measurement of the electrons electric dipole moment using molecules conned by a Stark gravitational trap, Phys. Rev. A 78, 033427 (2008)

Conferences & Other Presentations

  • Electromagnetically induced transparency in cesium, APS DAMOP meeting (June 2023)

 

  • Measuring the hyperfine structure within rubidium 5P_{1/2} excited state using Saturated Absorption Spectroscopy, APS DAMOP meeting (May 2022)

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  • Measuring the hyperfine structure within rubidium 5P_{3/2} excited state using Saturated Absorption Spectroscopy, APS DAMOP meeting (May 2021)

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  • Invited talk: Precision atomic structure measurements using diode laser spectroscopy, Southern Illinois University (SIU), Carbondale, IL (April 2021)

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  • High-precision measurements and theoretical calculations of indium excited-state polarizabilities, APS DAMOP meeting, Ft. Lauderdale, FL. (May 2018)

  • Measurement of hyperfine structure and isotope shifts in the 8p excited states of Tl, and the 7p excited states of In using two-step laser spectroscopy. APS DAMOP meeting, Sacramento, CA. (June 2017)

 

  • Precise measurement of the 8P1=2 hyperne splitting and isotope shift in 203Tl and 203Tl using two-step laser spectroscopy, APS DAMOP meeting, Providence, RI. (May 2016)

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  • High-precision Stark-shift measurements in excited states of indium using an atomic beam, APS DAMOP meeting, Columbus, OH. (Jun. 2015)

 

  • Line mixing effects of O2 A-band with photoacoustic spectroscopy in support of remote sensing, International Symposium on Molecular Spectroscopy, The Ohio State University, Columbus, OH. (Jun 2012)

 

  • Invited talk: Progress towards measuring electron electric dipole moment using the PbF molecule, California Institute of Technology, Pasadena, CA (Aug. 2011)

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  • Invited talk: Progress towards measuring electron electric dipole moment using the PbF molecule, Los Alamos National Laboratory, Los Alamos, NM (Aug 2011)

 

  •  Hyperfine Zeeman structure of the PbF molecule and implications for an e-EDM measurement, APS DAMOP meeting, Houston, TX (May 2010)

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  • Progress toward probing the electron electric dipole moment using the PbF molecule: Continuous ionization of PbF, APS DAMOP meeting, Chalottesville, VA (May 2009)

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  • Progress toward probing the electron electric dipole moment using the PbF molecule: The effect of the Geometric Phase on PbF Molecules Confined by a Stark-Gravitational Trap APS DAMOP meeting, Pen State, PA (May 2008)

Student Presentations

  • Anthony Austin (PHY), Progress towards observing electromagnetically induced transparency (EIT) in cesium, QUEST - SUNY Oswego, 2023

 

  • Fiona Wee (PHY), Thomas Bullock (PHY), Jiaxing Liu (PHY), Measuring the hyperfine splitting of ^{85}Rb 5P_{1/2} excited-state using Saturated Absorption Spectroscopy, QUEST - SUNY Oswego, 2022.

 

  • Fiona Wee (PHY), Mayank Giri (ECE), Laser Frequency Stabilization Technique Based On Direct Absorption Signal Of A Temperature Stabilized Rubidium Vapor Cell, 47th Annual RAS Fall Paper Session, Nazareth College, November 2021. (selected to the
    RAS December bulletin as a “Featured 2021 RAS Paper Session Poster”.)

 

  • Trieu N. Le (PHY), Elina M. van Kempen (PHY), An Exploration of Hyperfine Structure of Rubidium within 5P_{3/2} Excited-State Using Saturated Absorption Spectroscopy, Published in SUNY-Oswego Digital Library (OswegoDL), Sep. 2020

 

  • Andres Inga (PHY), Frequency linearization technique using Fabry-Perot interferometer, QUEST - SUNY Oswego, 2019.

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  •  Gregory Abbass (ECE), Sachintha Herath and Lawrence Paice (PHY), Homemade external-cavity diode laser (ECDL) for spectroscopy applications, QUEST - SUNY Oswego, 2019.

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  • Gregory Abbas (ECE), A progress towards building an external-cavity diode laser, 45th Annual Rochester Academy of Sciences Fall Scientific Paper Session, SUNY Geneseo, 2018.

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  • Sebastian DeCrescenzo (PHY), A Homemade External-Cavity Diode Laser, QUEST - SUNY Oswego, 2018.

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