Open Access Open Access  Restricted Access Subscription Access

Lasing without Inversion in Three Level Atoms and Atomic Coherence Effects


Affiliations
1 Department of Physics, J.B. College, Jorhat-785001, Assam, India
2 Centre for Laser and Optical Science, New Uchamati, Doom Dooma-786151, Assam, India
3 Department of Physics, D.H.S.K. College, Dibrugarh-786001, Assam, India
 

We reviewed briefly about the concepts and physics behind lasing without inversion and atomic coherence effect. The discussion concentrates on the analysis of physical conditions under which a ∧-type three level system exhibits lasing without inversion. At the end of this review, a possible application of LWI was reported.

Keywords

LWI, Atomic Coherence Effect
User
Notifications

  • Agarwal GS (1991), Inhibition of Spontaneous Emission Noise in Laser without Invasion, Phys. Rev. A 44, R 28-33.
  • Alzetta G, Gozzini A, Moi L and Orriols G (1976), Experimental-Method for Observation of Rf Transitions and Laser Beat Resonances in Oriented Na Vapor, Nuovo Cimento. 36, 5-20.
  • Arimondo B, Orriols G and Novo Cimento (1976), Non-absorbing atomic coherence by coherent two photon transitions in a three-level optical pumping, Phys. Rev. Lett. 7, 333-338.
  • Basov NG and Prokhorov AM (1955), Possible methods for obtaining active molecules for a molecular oscillator Soviet Phys. JETP. 1, 184-189.
  • Bloembergen M (1956), Theory of Maser, Phys. Rev. 104, 324-329.
  • Boller KJ, Imamoglu A and Harris SE (1991), Observations of Electro Magnetically induced Transparency, Phys. Rev. Lett. 66, 2593-2596.
  • Cohen-Tannoudji C (1977), Quantum mechanics. Vol.1, John Wiley & Sons.
  • Einstein A, Quantum Theory of Radiation, Z Physik. 18, 121-126 (1917).
  • Field JE, Hann KH and Harris SE (1991), Observation of electromagnetic Transparency in Collisionally Broadened Lead Vapors. Phys. Rev. Lett, 67, 3062-3065.
  • Fry ES, Li X, Nikonov D, Padmabandu GG, Scully MO, Smith AV, Tittle PK, Wang C, Wilkinson SR and Zhu SY (1993), Atomic Coherence Effect within Sodium D1 line – Lasing without Inversion via Radiation Trapping. Phys. Rev. Lett. 70, 3235-3238.
  • Hai-Woong Lee (1995), Quantum Theory of Electromagnetically induced suppression of absorption and inversionless Lasing in a three-level system. J. Opt. Soc. Am. B12, 449-455.
  • Hanle W (1924), Atomic Coherence Effect. Z. Phys. 30, 93-99.
  • Harris SE, Field JE and Kasapi A (1992), Dispersive Properties of Electromagnetically Induced Transiency. Phys. Rev. A. 46, R 29-32.
  • Karawajezyk A (1991), Gain and Diffusion in an Inversionless Laser. Phys. Rev. A 44, R 28.
  • Kassapi A, Jain M, Yin GY and Harris SE (1995), Coherent Amplification of an ultrashort Pulse in a three-level medium without population Inversion, Phys. Rev. Lett. 74, 2447-634.
  • Kocharovaskaya O and Khanin Ya I (1989), Simple atomic systems in resonant Laser. Fields (1988) J.E.T.P. Lett. 48, 630-636.
  • Kocharovaskaya O and Mandel P (1990), Theory of electromagnetically induced transparency, Phys. Rev. A 42, 523-529.
  • Kocharovskaya O (1999), Coherent Optical control of Mosbuer Spectra, Opt. Comm. 77, 215-220.
  • Kocharovskaya O and Mauri F (1991), From Lasers without Inversion to Grasses, Opt. Comm. 84, 393-399.
  • Kocharovskaya W, Kolesov R and Rostoutsev Yu (1999), Lasing without Inversion, a new path to X-ray Laser. Laser Phys. 9, 745-758.
  • Maiman TH (1960), Stimulated Optical emision in Ruby, Nature.187, 493-494.
  • Narducei LM, Doss HM, Scully MO and Keitel CH (1999), Inversionless gain in three-level system. Opt. Commun. 81, 379-384.
  • Padmabandu GG, Welch GR, Shubin IN, Fry ES, Nikonov DE, Lukin MD and Scully MO (1996), Laser oscillation without population inversion in a Sodium atomic beam. Phys. Rev. Lett. 76, 2053-2056.
  • Sargent III M, Scully MO and Lamb WE Jr. (1974), Laser physics, Addison-Wesley Publishing Company, Reading, Massachusetts, p.18.
  • Scully M O, Zhu S Y and Gavrielides A (1989), Degenerate quantum bit laser–Lasing without inversion and inversion without Lasing. Phys. Rev. Lett. 62, 2813-2816.
  • Scully MO (1985), Lasing without inversion. Phys. Rev. Lett. 55, 2802-2806.
  • Scully MO and Zubair MS (1997), Quantum optics, Cambridge University Press, Cambridge.
  • Winters MP, Hall JL and Toschek PE (1990), Correlated Spontaneity envision in Zeeman Laser. Phys. Rev. Lett. 65, 3116-3119.
  • Zebrov AS (1999),Lasing without inversion. Phys. Rev. Lett. 75, 1499-1510.
  • Zhu Y (1992), Cascade inversionless and inversion Laser, Phys. Rev. A 45, R 6149-6153.
  • Zhu Y and Min Xiao (1993), Inversionless Laser from a close multilevel system. Phys. Rev. A 47, 602-607.

Abstract Views: 502

PDF Views: 382




  • Lasing without Inversion in Three Level Atoms and Atomic Coherence Effects

Abstract Views: 502  |  PDF Views: 382

Authors

J. Saikia
Department of Physics, J.B. College, Jorhat-785001, Assam, India
J. Chetia
Centre for Laser and Optical Science, New Uchamati, Doom Dooma-786151, Assam, India
R. Changmai
Department of Physics, D.H.S.K. College, Dibrugarh-786001, Assam, India
G. D. Baruah
Centre for Laser and Optical Science, New Uchamati, Doom Dooma-786151, Assam, India

Abstract


We reviewed briefly about the concepts and physics behind lasing without inversion and atomic coherence effect. The discussion concentrates on the analysis of physical conditions under which a ∧-type three level system exhibits lasing without inversion. At the end of this review, a possible application of LWI was reported.

Keywords


LWI, Atomic Coherence Effect

References