Physics:Lasing without inversion

From HandWiki

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

  1. Marvin J. Weber. Handbook of Lasers. CRC Press. 2019. p. 1151. ISBN 978-1-4200-5017-2. https://books.google.com/books?id=ZS_3DwAAQBAJ&pg=PA1151. 
  2. Harris, S. E. (1989). "Lasers without inversion: Interference of lifetime-broadened resonances". Physical Review Letters 62 (9): 1033–1036. doi:10.1103/PhysRevLett.62.1033. PMID 10040407. Bibcode1989PhRvL..62.1033H. 
  3. Mompart, J.; Corbalán, R. (2000). "Lasing without inversion". J. Opt. B 2 (3): R7–R24. doi:10.1088/1464-4266/2/3/201. Bibcode2000JOptB...2R...7M. http://pdfs.semanticscholar.org/a2dd/fa99e29dbb021fb0c8fd92c5af7f15353d60.pdf. 
  4. Scully, M., & Zubairy, M. (1997). Chapter 7. In Quantum optics (p. 220). Cambridge: Cambridge University Press.
  5. Scully, M., & Zubairy, M. (1997). Chapter 7. In Quantum optics (p. 245). Cambridge: Cambridge University Press.
  6. A. Javan, Phys. Rev. 107, 1579 (1956)
  7. Javan, A. (2000). "On knowing Marlan". In Ode to a quantum physicist: A festschrift in honor of Marlan O. Scully. Elsevier.