Articles written in Pramana – Journal of Physics
Volume 52 Issue 3 March 1999 pp 281-291
We have described here the physical basis for lasing without population inversion (LWOPI). This type of amplification is obtained basically by two mechanisms: (i) one is based on atomic interference and (ii) the other is based on Fano-type interference. We have shown here, in H2 molecules, amplification without population inversion is feasible by considering both the mechanisms.
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