Professor Rupamanjari GHOSH

School of Physical Sciences,
Jawaharlal Nehru University,
New Delhi - 110 067, India.

E-mail:  rghosh.jnu@gmail.com, rghosh@mail.jnu.ac.in

Ph.D.  

University of Rochester, NY, USA, 1987
Thesis advisor: Professor L. Mandel
Title of thesis: Investigation of nonclassical effects in two-photon interference processes.

Research Areas:

Experimental and Theoretical Quantum Optics, Laser Physics, Nonlinear Optics, Quantum Information, Quantum Measurement, Magneto-Optics.

Academic Positions Held:

  • At the Jawaharlal Nehru University, New Delhi: Professor of Physics (mid-May 2003 – till date); Associate Professor of Physics (mid-May 1995 – mid-May 2003); Assistant Professor of Physics (1 November 1988 – mid-May 1995) in the School of Physical Sciences.

  • Visiting Positions: Invited Professor/Scientist, Laboratoire Aimé Cotton, Université Paris Sud, Campus d’Orsay, France, 16 June-16 July 2004, May-June 2006, May-October 2007, June 2009, June 2010, 12 June-13 July 2011;CNRS Visiting Scientist, Laboratoire de Photonique et Nanostructures, Marcoussis, France, 15 May-14 November 2002; Invited Professor, Laboratoire de Physique des Lasers, Universite de Rennes I, Rennes, France, 1 June–31 July 2000, and 15 May–15 July 2001; Visiting Scientist, Laboratoire Kastler Brossel, ENS, Paris, France, July 1999: Gave research seminars at ENS, Paris at the invitation of Nobel Laureate Professor Claude Cohen-Tannoudji.

  • Research Assistant at the Department of Physics and Astronomy, University of Rochester, USA: September 1981 through July 1987, working for a Ph.D. degree; Rush Rhees Fellow, 1981-83. 

Administrative Responsibilities/Professional Memberships:

In JNU

Dean, School of Physical Sciences, JNU: 6 December 2007 – 5 December 2009. 

Director, Academic Staff College, JNU: 18 August 2009 – 17 August 2011.

Chairperson, Committee to Review the JNU Admission Policy and Procedures, 2009.

Advisor,Office of Alumni Affairs, JNU, 2003 – 2007.

Founding Member, Standing Committee on Alumni Relations and International Linkages, JNU, 2003 – 2007. 

Chairperson, Gender Sensitisation Committee against Sexual Harassment (GSCASH), JNU, 2001 

Chairperson, Committee to Review the Rules and Procedures of GSCASH, 2002 and 2006. 

Proctor, JNU, 2004. 

Advisor, Health and Medical Facilities, JNU, 2001 – 2003. 

Member, Campus Development Committee, JNU, 1999 – 2004. 

Founding Member, Environmental Task Force, JNU, 2008. 

Member, Standing Committee on International Collaborations, 2009 – continuing. 

Served in crucial Enquiry and Grievance Redressal Committees, JNU. 

Served as Member, JNU Academic Council, Executive Council and Court many times. 

Served/Serving as External Member, Centre for the Study of Social Systems, Centre for Historical Studies, and Centre for the Study of Regional Development in the School of Social Sciences; in the Special Committee of the School of Computer& Systems Sciences, JNU. 

Served as Acting Director, Advanced Instrumentation Research Facility, JNU, and Acting Director, Jawaharlal Nehru Institute of Advanced Study, JNU. 

Other responsibilities at the School of Physical Sciences, JNU included functioning as the Acting Dean, Ph.D. and M.Sc. Student Advisor, being in-charge of the Laboratories, in-charge of Seminars and Journal Club, Entrance Examination Coordinator of the School at various points in time. 

In the JNU Teachers’ Association (JNUTA) Executive Committee, served as a School Representative, Joint Secretary (1997-98), Vice-President (2000-01); and President (2004-05, 2005-06). 

Outside JNU 

Advisor, Editorial Board, Optics Communications (Elsevier North Holland), 2011- 

Referee for many international journals and funded research projects (Department of Science and Technology, the Indo-French Centre for the Promotion of Advanced Research, Indo-US Science and Technology Forum).

Faculty Selection Committee member (and Visitor’s Nominee in a Central University) and Ph.D. thesis examiner for many Universities/Instituites; also for Fulbright-Nehru Postdoctoral Research Fellowships, United States-India Educational Foundation 2010. 

Chairperson, Committee against Sexual Harassment, Indian Institute of Science Education and Research (IISER), Kolkata, 2009- 

Member, Indian Steering Committee constituted by the Department of Science and Technology (DST), Govt. of India in 1999 in connection with the setting up of an Indo-French Laser Laboratory in India. 

Member, Advisory Committee constituted by the DST, Govt. of India, for formulation of a special scheme “Scholarships for Women Scientists and Technologists” (2002). 

Member, Scientific Advisory Committee, Nuclear Science Centre, New Delhi, 2001-2003. 

Member, Accelerator Users Committee, Nuclear Science Centre, New Delhi, 1997-99. 

Member, Academic Committee, Military College of Electronics and Mechanical Engineering, Secunderabad, 2005-2007. 

Member, Academic Committee, Raman Research Institute, Bangalore, 2011-13. 

Member, Departmental Advisory Board, Department of Education in Science and Mathematics, National Council of Educational Research and Training (NCERT), 2008- 

Member, Advisory Committee, Jawaharlal Nehru National Science Exhibition for Children (JNNSEC), NCERT, 2010- 

Chief Advisor, Class IX Science textbook of NCERT, 2005. 

Chief Advisor, Class X Science textbook of NCERT, 2006. 

Life Member, Indian Chapter of ICTP, Trieste, Italy.

Recent Award

Stree Shakti Science Samman, presented by the Union Minister for Tourism, Urban Development and Poverty Alleviation, Kumari Selja, on 12 December 2009.

Scientific Publications

Book:

1.  Foundations of Quantum Theory and Quantum Optics II, Proceedings of the Second Winter Institute 2002, Rupamanjari Ghosh ed. (Indian Academy of Sciences, Bangalore, 2002).

Select Research Articles:

  1. "Phase-space procedure for calculating multitime correlation functions of the electromagnetic field" – P. Lett, R. Ghosh, S. Friberg and L. Mandel, Physical Review A 30, 890 (1984).

  2. "Interference of two photons in parametric down-conversion" – R. Ghosh, C.K. Hong, Z.Y. Ou and L. Mandel, Physical Review A 34, 3962 (1986).

  3. "Chaos in a good cavity single-mode dye laser due to turbulent dye flow " – T. H. Chyba, E. C. Gage, R. Ghosh, P. Lett, L. Mandel and I. McMackin, Optics Letters 12, 422 (1987).

  4. "Observation of non-classical effects in the interference of two photons" – R. Ghosh and L. Mandel, Physical Review Letters 59, 1903 (1987).
    The Quantum Challenge

  5. The Age of Entanglement

  6. "Theory of a two-photon squeezed laser-like oscillator" – R. Ghosh and G.S. Agarwal, Physical Review A 39 (Rapid Comm.), 1582 (1989); Physical Review A 42, 665 (1990).

  7. "Wigner function description of quantum mechanical nonlocality" – A. Venugopalan and R. Ghosh, Physical Review A 44, 6109 (1991).

  8. "Collisional effects in gas lasers" – A. Agarwal and R. Ghosh, Physical Review A 47, 1407 (1993).

  9. "Optical mode-coupling in a ring due to a back-scatterer" – A. Venugopalan, D. Kumar and R. Ghosh, Pramana - Journal of Physics 40, 107 (1993).

  10. "Theory of magneto-optic Kerr effects" – U. Tiwari, R. Ghosh and P. Sen, Physical Review B 49, 2159 (1994).

  11. "Second harmonic generation as a surface/interface probe" – R. Ghosh, in Novel Applications of Lasers, ed. H.B. Bohidar (Wiley Eastern, New Delhi, 1994) pp. 52-58.

  12. "Two-photon squeezed laser with long-lived atoms" – A. Agarwal and R. Ghosh, Physical Review A 50, 1950 (1994).

  13. "Quantum correlations in nonlinear optical signals" – R. Ghosh, Current Science 67, 520 (1994).

  14. "The quantum measurement problem: Nature of the apparatus" – A. Venugopalan, D. Kumar and R. Ghosh, Current Science 68, 62 (1995).

  15. “Environment-induced decoherence: I. The Stern-Gerlach measurement" – A. Venugopalan, D. Kumar and R. Ghosh, Physica A 220, 563 (1995).

  16. "Environment-induced decoherence: II. Effect of decoherence on Bell's inequality for an EPR pair" – A. Venugopalan, D. Kumar and R. Ghosh, Physica A 220, 576 (1995).

  17. "Decoherence and the quantum Zeno effect" – A. Venugopalan and R. Ghosh, Physics Letters A 204, 11 (1995).

  18. "Magneto-optic piston effect" – S. Dattagupta, R. Ghosh and J. Singh, Physical Review Letters 83, 710 (1999).

  19. "Optical Hall effect" – J. Singh, R. Ghosh and S. Dattagupta, Physical Review A 61, 025402 (2000).

  20. "Quantum theory of a Stern-Gerlach system in contact with a linearly dissipative environment" – S. Banerjee and R. Ghosh, Physical Review A 62, 042105 (2000).

  21. "Observation of magnetochiral birefringence" – M. Vallet, R. Ghosh, A. Le Floch, T. Ruchon, F. Bretenaker and J. -Y. Thepot, Physical Review Letters 87, 183003 (2001); Reported in Nature Physics Portal, Volume 413 No. 6858 (October 25, 2001) under Research Highlights – "Magneto-optics with a twist: Magnetochiral anisotropy comes clean" [http://www.nature.com/plink/highlights/6858-4.html].

  22. "Magneto-optic drift of ions" – R. Ghosh, S. Dattagupta and J. Singh, Physical Review A 64, 063403 (2001).

  23.  “General quantum Brownian motion with initially correlated and nonlinearly coupled environment” – S. Banerjee and R. Ghosh, Physical Review E 67, 056120 (2003).

  24. “Propagator for a spin-Bose system with the Bose field coupled to a reservoir of harmonic oscillators" – S. Banerjee and R. Ghosh, Journal of Physics A: Mathematical and General 36, 5787 (2003).

  25. "Theory of the fundamental linewidth of a two-mode laser" – A. K. Hafiz and R. Ghosh, Journal of Optics B: Quantum and Semiclassical Optics 6, 276 (2004).

  26. “Blue shift in a one-dimensional photonic crystal due to interference of second- and third-order nonlinear interactions” – R. Ghosh, A. K. Hafiz, P. Monnier, C. Cojocaru, F. Rainery, A. Levenson and R. Raj, Proceedings of the Seventh International Conference on Optoelectronics, Fiber Optics & Photonics: Photonics-2004, Kochi, December 2004.

  27. “Reflection and transmission spectra for ultrashort pulse propagation in a one-dimensional nonlinear photonic crystal” – A K Hafiz and R Ghosh, Journal of the Optical Society of America B 23, 1091 (2006).

  28.  “Coherent optical processes in 3-level systems” – F. Goldfarb, J. Ghosh, A. Louchet, F. Bretenaker, R. Ghosh, J.-L. Le Gouët and I. Lorgeré, Eighth International Conference on Optoelectronics, Fiber Optics & Photonics: Photonics-2006, Hyderabad, December 2006: Winner of the Best-Poster Award.

  29. "Two-mode laser problem revisited" – Joyee Ghosh and R. Ghosh, Eighth International Conference on Optoelectronics, Fiber Optics & Photonics: Photonics-2006, Hyderabad, December 2006.

  30. “Functional integral treatment of some quantum nondemolition systems” – S. Banerjee and R. Ghosh, Journal of Physics A: Mathematical and Theoretical 40, 1273 (2007).

  31. “Quantum phase diffusion in quantum nondemolition systems” – S. Banerjee, J. Ghosh and R. Ghosh, Physical Review A 75, 062106 (2007).

  32. “Dynamics of decoherence without dissipation in a squeezed thermal bath” – S. Banerjee and R. Ghosh, Journal of Physics A: Mathematical and Theoretical 40, 13735 (2007). http://www.iop.org/EJ/abstract/1751-8121/40/45/014/

  33. “Observation of ultra-narrow electromagnetically induced transparency and slow light using purely electronic spins in a hot atomic vapor” – F. Goldfarb, J. Ghosh, M. David, J. Ruggiero, T. Chanelière, J.-L. Le Gouët, H. Gilles, R. Ghosh and F. Bretenaker, Europhysics Letters 82, 54002 (2008). http://www.iop.org/EJ/abstract/0295-5075/82/5/54002

  34. “Stable phase-locking of an external-cavity diode laser subjected to external optical injection” – P. Kumar, A. Prasad and R. Ghosh, Journal of Physics B: Atomic Molecular and Optical Physics 41, 135402 (2008). http://www.iop.org/EJ/abstract/0953-4075/41/13/135402/

  35. “Strange bifurcation and phase-locked dynamics in mutually-coupled diode laser systems” – P. Kumar, A. Prasad and R Ghosh, Journal of Physics B: Atomic Molecular and Optical Physics 42, 145401 (2009).

  36. “Analysis of electromagnetically-induced transparency and slow light in a hot vapor of atoms undergoing collisions” – J. Ghosh, R. Ghosh, F. Goldfarb, J.-L. Le Gouët and F. Bretenaker, Physical Review A 80, 023817 (2009).

  37. “Observation of electromagnetically induced transparency and slow light in the dark state-bright state basis” – T. Lauprêtre, J. Ruggiero, R. Ghosh, F. Bretenaker and F. Goldfarb, Optics Express 17, 19444 (2009).

  38. Slow-light: Fascinating physics or potential applications? “Electromagnetically-induced transparency, slow light, and negative group velocities in a room temperature vapor of 4He*” – F. Goldfarb, T. Lauprêtre, J. Ruggiero, F. Bretenaker, J. Ghosh and R. Ghosh, C. R. Physique (Paris) 10, 919 (2009).

  39. “Measurement of the coupling constant in a two-frequency VECSEL” – V. Pal, P. Trofimoff, B.-X. Miranda, G. Baili, M. Alouini, L. Morvan, D. Dolfi, F. Goldfarb, I. Sagnes, R. Ghosh and F. Bretenaker, Optics Express 18, 5008 (2010).

  40. “Electromagnetically-induced transparency and slow light in room temperature 4He*” – J. Ghosh, F. Goldfarb, J.-L. Le Gouët, F. Bretenaker and R. Ghosh, Laser Physics 20 (2010).

  41. “Photon lifetime in a cavity containing a slow-light medium” – T. Lauprêtre, C. Proux, R. Ghosh, S. Schwartz, F. Goldfarb and F. Bretenaker, Optics Letters 36, 1551 (2011); arXiv:1104.0158 [physics.optics].

  42. “Interacting double dark resonances in a hot atomic vapor of helium” – S. Kumar, T. Lauprêtre, R. Ghosh, F. Bretenaker and F. Goldfarb, Physical Review A 84, 023811 (2011).

  43. “Observation of noise phase locking in a single-frequency VECSEL” – A. El Amili, V. Pal, F. Goldfarb, R. Ghosh, M. Alouini, I. Sagnes and F. Bretenaker, Optics Express 19, 17250 (2011).

  44. “Analysis of adiabatic transfer in cavity quantum electrodynamics” – J. Ghosh, R. Ghosh and D. Kumar, Pramana - Journal of Physics 77, 633 (2011).

  45. “Optical phase dynamics in mutually coupled diode laser systems exhibiting power synchronization” – V. Pal, A. Prasad and R. Ghosh, Journal of Physics B: Atomic Molecular and Optical Physics 44, 235403 (2011).

  46. “Role of an information-theoretic measure of quantum correlation in a dynamical phase transition of entanglement” – H.S. Dhar, R. Ghosh, A. Sen(De) and U. Sen, Proceedings of SPIE Vol. 8173 (SPIE, Bellingham, WA 2011) 81731P.

  47. “Anomalous ring-down effects and breakdown of the decay rate concept in optical cavities with negative group delay” – T. Lauprêtre, S. Schwartz, R. Ghosh, I. Carusotto, F. Goldfarb and F. Bretenaker, New Journal of Physics 14, 043012 (2012).

  48. “Quantum discord surge heralds entanglement revival in an infinite spin chain” – H.S. Dhar, R. Ghosh, A. Sen(De) and U. Sen, Europhysics Letters 98, 30013 (2012).

  49. “Ultranarrow resonance due to coherent population oscillations in a Lambda-type atomic system” – T. Lauprêtre, S. Kumar, P. Berger, R. Faoro, R. Ghosh, F. Bretenaker and F. Goldfarb, Physical Review A (Rapid Communications) 85, 051805(R) (2012).

  50. "Nonclassical properties of states engineered by superpositions of quantum operations on classical states" – A. Chatterjee, H. S. Dhar and R. Ghosh, Journal of Physics B: Atomic Molecular and Optical Physics 45, 205501 (2012).

  51. "Controllable quantum correlations of two-photon states generated using classically driven three-level atoms" – H. S. Dhar, S. Banerjee, A. Chatterjee and R. Ghosh, Annals of Physics 331, 97 (2013).

  52. "Intensity noise correlations in a two-frequency VECSEL" – S. De, V. Pal, A. El Amili, G. Pillet, G. Baili, M. Alouini, I Sagnes, R. Ghosh and F. Bretenaker, Optics Express 21, 2539 (2013).

  53. "Semiconductor laser dynamics with two filtered optical feedbacks" – V. Pal, J.S. Suelzer, A. Prasad, G. Vemuri and R. Ghosh, IEEE Journal of Quantum Electronics, 49, 340 (2013).

  54. "Polarization dependent manipulation of optical properties in a tripod system" – S. Kumar, T. Lauprêtre, F. Bretenaker, F. Goldfarb and R. Ghosh, Physical Review A 88, 023852 (2013).

  55. "Mapping generalized Jaynes-Cummings interaction into correlated finite-sized systems", H. S. Dhar, A. Chatterjee and R. Ghosh, Journal of Physics B: Atomic, Molecular and Optical Physics 47, 135501 (2014).

  56. "Generating continuous variable entangled states for quantum teleportation using a superposition of number-conserving operations", H. S. Dhar, A. Chatterjee and R. Ghosh, Journal of Physics B: Atomic, Molecular and Optical Physics 48, 185502 (2015)

  57. "Observation and measurement of an extra phase shift created by optically detuned light storage in metastable helium", M.-A. Maynard, T. Labidi, M. Mukhtar, S. Kumar, R. Ghosh, F. Bretenaker and F. Goldfarb, EPL 105, 44002 (2014).

  58. "Cumulative quantum work-deficit versus entanglement in the dynamics of an infinite spin chain", H. S. Dhar, R. Ghosh, A. Sen(De) and U. Sen, Physics Letters A 378, 1258 (2014).


Educational video lectures on Optical Physics produced by the CEC-UGC, 2006-.

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