Study of femtosecond laser amplification in MgO:LiTaO3 crystals with periodic nonlinear properties
https://doi.org/10.17586/2220-8054-2025-16-3-291-297
Abstract
This work presents a theoretical study of the parametric amplification process of optical radiation in crystals with periodic modulation of quadratic nonlinear susceptibility, using MgO:LiTaO3 as an example. Special attention is given to analyzing the influence of basic factors such as linear absorption and dispersion on the process efficiency. It is found that in the infrared spectral range, linear absorption and dispersion effects significantly affect the signal wave amplification coefficient, determining the energy redistribution dynamics and spectral characteristics of the resulting radiation. The study introduces a novel approach to optimizing domain length relative to coherence length, achieving up to 18 % efficiency through precise tuning, which surpasses previously reported results for similar materials. The obtained results are important for optimizing nonlinear crystal parameters, developing efficient parametric amplification schemes, and creating promising optical devices operating in the infrared range.
About the Authors
O. I. Sabirov
Urgench State University
Uzbekistan
Uzbekistan
Obid I. Sabirov
Kh. Alimjan Str. 14, Urgench, 220100, Khorezm Region
A. E. Rajabov
Urgench State University
Uzbekistan
Uzbekistan
Alisher E. Rajabov
Kh. Alimjan Str. 14, Urgench, 220100, Khorezm Region
A. R. Matnazarov
Urgench Innovative University
Uzbekistan
Uzbekistan
Anvar R. Matnazarov
Gurlan-2 Str., Urgench, 220100, Khorezm Region
B. Kh. Eshchanov
Chirchik State Pedagogical University
Uzbekistan
Uzbekistan
Bakhodir Kh. Eshchanov
Amir Temur Str. 104, Chirchik, Tashkent Region
Sh. Otajanov
National University of Uzbekistan named after Mirzo Ulugbek
Uzbekistan
Uzbekistan
Shavkat Otajanov
University Str. 4, Tashkent, 100174
U. K. Sapaev
Tashkent Branch of the Russian Gubkin University
Uzbekistan
Uzbekistan
Usman K. Sapaev
Durmon Yuli Street 34, Tashkent, 100125
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Review
For citations:
Sabirov O.I., Rajabov A.E., Matnazarov A.R., Eshchanov B.Kh., Otajanov Sh., Sapaev U.K. Study of femtosecond laser amplification in MgO:LiTaO3 crystals with periodic nonlinear properties. Nanosystems: Physics, Chemistry, Mathematics. 2025;16(3):291-297. https://doi.org/10.17586/2220-8054-2025-16-3-291-297
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