vestifmИзвестия Национальной академии наук Беларуси. Серия физико-математических наукProceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series1561-24302524-2415The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"vestifm-15Research ArticleФИЗИКАPHYSICSОПРЕДЕЛЕНИЕ СТАЦИОНАРНОГО КОЭФФИЦИЕНТА ВКР-УСИЛЕНИЯ КАЛИЙ-ГАДОЛИНИЕВОГО ВОЛЬФРАМАТА НА ДЛИНЕ ВОЛНЫ 532 нмDETERMINATION OF THE STEADY-STATE RAMAN GAIN COEFFICIENTS OF POTASSIUM-GADOLINIUM TUNGSTATE AT A WAVELENGTH OF 532 nmМаркевичВ. Ю.MarkevichV. U.vumarkevich@gmail.comЧулковР. В.ChulkovR. V.vumarkevich@gmail.comИнститут физики им. Б. И. Степанова Национальной академии наук Беларуси, МинскB. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus, Minsk20161405201601102106Copyright © Маркевич В.Ю., Чулков Р.В., 20162016Маркевич В.Ю., Чулков Р.В.Markevich V.U., Chulkov R.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestifm.belnauka.by/jour/article/view/15

Предложен метод определения стационарных коэффициентов усиления вынужденного комбинационного рассеяния (ВКР) в кристаллах, в основе которого лежит сопоставление данных численного моделирования и экспериментальных результатов по ВКР-генерации. Предложенный подход был протестирован для нитрата бария (BN) в поле спектрально ограниченных наносекундных лазерных импульсов. Его использование для калий-гадолиниевого вольфрамата (KGW) позволило установить значения коэффициентов ВКР-усиления 14 ± 3 и 11 ± 3 см/ГВт на длине волны  532 нм для ориентаций  E║Nm  иE║Ng соответственно.

A method for determination of the steady-state Raman gain coefficients in crystals has been proposed. The method is based on comparing the numerical simulation data and the experimental Raman generation results. The proposed approach has been tested for barium nitrate in the field of spectrally limited nanosecond laser pulses. Its application for potassiumgadolinium tungstate has revealed the values of the Raman gain coefficients to be 14 ± 3 and 11 ± 3 cm/GW at a wavelength  of 532 nm for the E║Nm and  E║Ng  sample orientations, respectively.

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The authors declare that there are no conflicts of interest present.