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Modern nonlinear optics
Measurements of small optical absorption and scattering coefficients of high-power polarised laser radiation in lithium triborate crystals
I. V. Grishchenkoa, A. K. Vorob'evb, A. Yu. Ostapivb, Yu. S. Stirmanova, A. V. Konyashkina, O. A. Ryabushkina a Fryazino Branch of Kotelnikov Institute of Radioengineering and Electronics, Russian Academy of Sciences
b Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
Abstract:
We present the results of measurements of low optical absorption and scattering coefficients in lithium triborate crystals using the method of piezoelectric resonance laser calorimetry under the action of polarised single-mode laser radiation at wavelengths of 1070 and 532 nm in the power ranges of 50 – 300 and 5 – 50 W, respectively. It is shown that when radiation propagates along the crystal axis a, these coefficients remain constant in the specified power ranges and do not depend on the direction of laser radiation polarisation. The measured optical scattering coefficients are compared with the results obtained by the method of integrating spheres.
Keywords:
lithium triborate, laser calorimetry, piezoelectric resonance laser calorimetry, optical absorption, optical scattering, equivalent temperature, ionic conductivity, polarised IR radiation, visible radiation.
Received: 12.10.2021 Revised: 19.11.2021 Accepted: 19.11.2021
Citation:
I. V. Grishchenko, A. K. Vorob'ev, A. Yu. Ostapiv, Yu. S. Stirmanov, A. V. Konyashkin, O. A. Ryabushkin, “Measurements of small optical absorption and scattering coefficients of high-power polarised laser radiation in lithium triborate crystals”, Kvantovaya Elektronika, 52:3 (2022), 301–305 [Quantum Electron., 52:3 (2022), 301–305]
Linking options:
https://www.mathnet.ru/eng/qe17999 https://www.mathnet.ru/eng/qe/v52/i3/p301
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Abstract page: | 128 | Full-text PDF : | 6 | References: | 20 | First page: | 17 |
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