Open AccessЛокализованная вторая оптическая гармоника в нелинейно-оптической керамике при фемтосекундном лазерном возбуждении
Author(s) -
С.О. Леонов,
М.А. Бастамова,
Н.В. Сидоров,
М.Н. Палатников,
В.С. Горелик
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2019.10.48360.175-19
Subject(s) - homogeneity (statistics) , materials science , femtosecond , wavelength , laser , radiation , excitation wavelength , ceramic , excitation , optics , nonlinear system , second harmonic generation , analytical chemistry (journal) , optoelectronics , physics , chemistry , mathematics , composite material , chromatography , statistics , quantum mechanics
econd harmonic generation is studied in samples of LiTaO_3 powder ceramics with different lithium concentrations (48.8 and 49.3%) under excitation by a femtosecond laser at a wavelength of 1.026 nm. The dependence of the second harmonic integral power on the incident radiation power is measured, and a method for estimating the nonlinearity coefficient and its homogeneity in green-body ceramics is proposed.