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Generation of the third harmonic of near IR femtosecond laser radiation tightly focused into the bulk of a transparent dielectric in the regime of plasma formationстатья
Информация о цитировании статьи получена из
Web of Science,
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 февраля 2016 г.
- Авторы: Mikheev P.M., Potemkin F.V.
- Журнал: Moscow University Physics Bulletin
- Том: 66
- Номер: 1
- Год издания: 2011
- Издательство: Allerton Press
- Местоположение издательства: New York, N.Y., United States
- Первая страница: 19
- Последняя страница: 24
- DOI: 10.3103/S0027134911010176
- Аннотация: The generation of the third harmonic of femtosecond laser radiation with a wavelength of 1.24 μm tightly focused into the bulk of fused silica was simulated numerically for the regime with light intensity of 3 × 10^13 W/cm^2, which is extreme for solid bodies. The efficiency of third harmonic generation (THG) was found to be restricted to 0.1% in the regime of plasma formation. This is determined by two competitive processes: a decrease of THG efficiency due to an increase of wave detuning and an increase of THG efficiency due to a growth of focusing asymmetry. In an isotropic medium, determination of the threshold of plasma formation by use of the third harmonic signal is shown to be a more sensitive method as compared with the standard scheme of nonlinear transmittance detection.
- Добавил в систему: Потёмкин Фёдор Викторович