Lasing without inversion
Lasing without inversion (LWI),[1] or lasing without population inversion, is a technique used for light amplification by stimulated emission without the requirement of population inversion.[2] A laser working under this scheme exploits the quantum interference between the probability amplitudes of atomic transitions in order to eliminate absorption without disturbing the stimulated emission.[3] This phenomenon is also the essence of electromagnetically induced transparency.[4]
The basic LWI concept was first predicted by Ali Javan in 1956.[5][6] The first demonstration of LWI was carried out by Marlan Scully in an experiment in rubidium and sodium at Texas A&M University, and then at NIST in Boulder.[7]
References
[edit | edit source]- ^ Marvin J. Weber. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Scully, M., & Zubairy, M. (1997). Chapter 7. In Quantum optics (p. 220). Cambridge: Cambridge University Press.
- ^ Scully, M., & Zubairy, M. (1997). Chapter 7. In Quantum optics (p. 245). Cambridge: Cambridge University Press.
- ^ A. Javan, Phys. Rev. 107, 1579 (1956)
- ^ Javan, A. (2000). "On knowing Marlan". In Ode to a quantum physicist: A festschrift in honor of Marlan O. Scully. Elsevier.
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