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Sum-frequency generation in the bulk of an isotropic gyrotropic medium with two collinear pump beamsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Koroteev N.I., Makarov V.A., Volkov S.N.
- Журнал: Laser Physics
- Том: 9
- Номер: 3
- Год издания: 1999
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Первая страница: 655
- Последняя страница: 664
- Аннотация: We theoretically investigate sum-frequency generation with two interacting coaxial Gaussian beams in the bulk of a noncentrosymmetric liquid due to a local electric-dipole quadratic optical susceptibility of the medium. It is demonstrated that this effect, forbidden in the plane-wave approximation, may occur only in focused pump beams. Quadrature formulas for the electric field and the power of the signal wave are derived. Particular cases when these expressions can be reduced to an analytical form are considered. The case of pump beams tightly focused into the center of a long medium is thoroughly investigated. Transverse distribution of the signal-wave intensity and the dependences of this quantity on the mismatch of the wave vectors, the ratio of pump-beam half-widths in the waist plane, and the polarization states of these beams are studied. Quasi-phase-matching conditions, allowing the efficiency of the considered three-wave mixing process to be substantially improved, are found.
- Добавил в систему: Макаров Владимир Анатольевич