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physics.optics2000★ 5 cited
Ienversionless gain in an optically-dense resonant Doppler-broadened medium
A. K. Popov, S. A. Myslivets, Thomas F. George
Resonant nonlinear-optical interference processes in four-level Doppler-broadened media are studied. Specific features of amplification and optical switching of short-wavelength ra…
quant-ph2000★ 4 cited
Inversionless gain in a three-level system driven by a strong field and collisions
A. K. Popov, S. A. Myslivets, Gao Jin-yue +2
Inversionless gain in a three-level system driven by a strong external field and by collisions with a buffer gas is investigated. The mechanism of populating of the upper laser lev…