Interference at quantum transitions: lasing without inversion and resonant four-wave mixing in strong fields at Doppler-broadened transitions

Описание

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.

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Издание

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

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