Amplification without inversion in a degenerate double Lambda system

作者: Q. V. Lawande , Niharika Singh , R. D'Souza , B. N. Jagatap

DOI:

关键词: Degenerate energy levelsCoherence (physics)Degree of coherenceAtomic physicsPhysicsLambdaCoherence lengthCoherence theoryLaser linewidthCoherence timeQuantum mechanics

摘要: We investigate theoretically amplification without inversion (AWI) in a degenerate double Λ system coherently driven by two fields. observe AWI with subnatural linewidth and attribute it to the low frequency coherence.

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