Lasing without inversion and enhancement of the index of refraction via interference of incoherent pump processes
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For the quantum beat laser we investigate the generation of coherence between the two lower levels via incoherent pumping of these two levels to a fourth auxiliary level. It will be shown that this way of establishing coherence also leads to lasing without inversion and to an enhancement of the index of refraction at a point of vanishing absorption. 1992.
author list (cited authors)
Fleischhauer, M., Keitel, C. H., Scully, M. O., & Su, C.
complete list of authors
Fleischhauer, M||Keitel, CH||Scully, MO||Su, C