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Ajay Wasan
Ajay Wasan Associate Professor wasanfph[at]
Areas of Interest
  • Atomic Spectroscopy, Precision Spectroscopy
  • Quantum Optics, EIT, CPT.
  • Laser Cooling and Trapping of Neutral atoms, Spectroscopy of Single atom.
Professional Background
2014till dateAssociate ProfessorIIT, Roorkee
20072014Assistant ProfessorIIT, Roorkee
20052007JSPS fellowDept. of Physics, Kyoto University, Japan
20032005RA (CSIR) Dept. of Physics, IISc, Bangalore
20022003Post Doctoral FellowLKB, Paris
19982002RA (CSIR) Dept. of Physics, IISc, Bangalore
Educational Details
PhDPhysicsIndian Institute of Technology, Kanpur1998
MScPhysicsUniversity of Roorkee, Roorkee (now IITR)1990
Administrative Background
May 2014till dateChief AdvisorHimalayan Explorers' Club
Feb 2012May 2014Deputy AdvisorHimalayan Explorers' Club
Oct 20122012Co-cordinatorThomso-2012
Teaching Engagements
TitleCourse CodeClass NameSemester
Electricity and MagnetismPH-202MI.MS. 2nd yearSpring
OpticsPH-201MI.MS. 2nd yr.Autumn
PHDs Supervised
TopicScholar NameStatus of PHDRegistration Year
Quantum OpticsVineet BhartiA2010
Quantum OpticsParamjit KaurO2011
Quantum OpticsKavita YadavO2013
Quantum OpticsMahesh YadavO2013
Refereed Journal Papers
  1. “Optical properties of an inhomogeneously broadened ΛV-system with multiple excited states”, Paramjit Kaur, Vineet Bharti and Ajay Wasan, Journal of Modern Optics, in press (June 2014).
  2. “Polarization-rotation resonances with subnatural widths using a control laser”, Sapam Ranjita Chanu, Kanhaiya Pandey, Vineet Bharti, Ajay Wasan and Vasant Natarajan, Euro. Phys. Lett. 106, 43001 (2014).
  3. “Complete wavelength mismatching effect in a Doppler broadened Y-type six-level EIT atomic medium”, Vineet Bharti and Ajay Wasan, Opt. Commun. 324, 238 (2014).
  4. “Influence of multiple excited states on optical properties of an N-type Doppler broadened system for the D2 line of alkali atoms”, Vineet Bharti and Ajay Wasan, J. Phys. B: At. Mol. Opt. Phys. 46, 125501 (2013).
     (Our work highlighted at in 2013)
  5. “Electromagnetic induced transparency in the Doppler broadened cascade transition with multiple excited levels”, Vineet Bharti and Ajay Wasan, J. Phys. B: At. Mol. Opt. Phys. 45, 185501 (2012).
  6. “Coherent control of magneto-optic rotation”, Kanhaiya Pandey, Ajay Wasan and Vasant Natarajan, J. Phys. B: At. Mol. Opt. Phys. 41, 225503 (2008).
  7. “Resolving closely-spaced hyperfine levels in the 3P3/2 state of 23Na”, Dipankar Das, Kanhaiya Pandey, Ajay Wasan, and Vasant Natarajan, J. Phys. B: At. Mol. Opt. Phys. 39, 3111 (2006).

  8. “Laser cooling and trapping of Yb from a thermal source”, Umakant Rapol, Anusha Krishna, Ajay Wasan, and Vasant Natarajan,  Eur. Phys. J. D 29, 409 (2004).

  9. “Subnatural linewidth in room-temperature Rb vapor using a control laser”, Umakant Rapol, Ajay Wasan, and Vasant Natarajan,  Phys. Rev. A 67, 053802 (2003).

  10. “Prospects for Forbidden-Transition Spectroscopy and Parity Violation Measurements using a Beam of Cold Stable or Radioactive Atoms'', S. Sanguinetti, J. Guéna, M. Lintz, Ph. Jacquier, A. Wasan, M-A. Bouchiat, Euro phys. J. D 25, 3 (2003).

  11. “A new Manifestation of Atomic Parity Violation in Cesium: a Chiral Optical Gain induced by linearly polarized 6S-7S Excitation”, J. Guéna, D. Chauvat, Ph. Jacquier, E. Jahier, M. Lintz, A.V. Papoyan, S. Sanguinetti, D. Sarkisyan, A. Wasan, M-A. Bouchiat,   Phys. Rev. Lett. 90, 143001 (2003).

  12. “Observation of sub-natural linewidths for cold Rb atoms in a magneto-optic trap”, Umakant Rapol, Ajay Wasan, and Vasant Natarajan,  Euro phys. Lett. 61, 53 (2003).

  13. “High-accuracy wavemeter based on a stabilized diode laser”, Ayan Banerjee, Umakant Rapol, Ajay Wasan and Vasant Natarajan,  Appl. Phys. Lett. 79, 2139 (2001).

  14. “Loading of a Rb magneto-optic trap from a getter source”, Umakant D. Rapol, Ajay Wasan, and Vasant Natarajan, Phys. Rev. A  64, 023402 (2001).

  • Presently I am setting up Quantum Optics Laboratory. A long term goal of my research is trapping a single atom which will advance our understanding of the quantum engineering of microscopic systems. These experiments require state of the art techniques using lasers, optics, vacuum technology, and rf electronics. We have already acquired most of the instrument and some are still in process.