Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: International Vavilov Conference on Nonlinear Optics; NOVOSIBIRSK, RUSSIA; NOVOSIBIRSK, RUSSIA
Год издания: 1998
Идентификатор DOI: 10.1117/12.328240
Ключевые слова: quantum interference; lasing without inversion; resonant four-wave mixing; Doppler and strong field effects
Аннотация: An influence of nonlinear interference processes at quantum transitions in strong resonance electromagnetic fields on absorption, amplification and refractive indices as well as on four-wave mixing processes is investigated. Doppler broadening of Che coupled transitions, incoherent excitation, relaxation processes, as well as powerПоказать полностьюsaturation processes associated with the coupled levels are taken into account. Both closed (ground state is involved) and open (only excited states are involved) energy level configurations are considered. Common expressions are obtained which allow to analyze the optical characteristics (including gain without inversion and enhanced refractive index at, vanishing absorption) for various V, Lambda and H configurations of interfering transitions by a simple substitution of parameters. Similar expressions for resonant four-wave mixing (FWM) in Raman configurations are derived too. Crucial role of Doppler broadening is shown. Theory is applied for numerical analysis of some recent and potential experiments.
Журнал: 11TH INTERNATIONAL VAVILOV CONFERENCE ON NONLINEAR OPTICS
Выпуск журнала: Vol. 3485
Номера страниц: 252-263
ISSN журнала: 0277786X
Место издания: BELLINGHAM
Издатель: SPIE-INT SOC OPTICAL ENGINEERING