S. O. Leonov, M. A. Bastamova, N. V. Sidorov, M. N. Palatnikov, V. S. Gorelik, “Localized second optical harmonic in nonlinear optical ceramics excited by a femtosecond laser”, Optics and Spectroscopy, 2019, Volume 127, Issue 4,Pages <nobr>575

Special Issue "Physical Optics and Spectroscopy: Interdisciplinary Research"
Nonlinear optics

Localized second optical harmonic in nonlinear optical ceramics excited by a femtosecond laser

S. O. Leonov^a, M. A. Bastamova^a, N. V. Sidorov^b, M. N. Palatnikov^b, V. S. Gorelik^ac

^a Bauman Moscow State Technical University, 105005, Moscow, Russia
^b Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Centre of the Russian Academy of Sciences, 184209, Apatity, Russia
^c P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia

Abstract: Second 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.

Keywords: second harmonic generation, nonlinear optical materials, ceramics, femtosecond radiation.

Received: 04.06.2019
Revised: 04.06.2019
Accepted: 11.06.2019

DOI: 10.21883/OS.2019.10.48360.175-19