Non-Uniform Volume Grating Model of Stimulated Brillouin Scattering in Water

被引：0

作者：

He X. ^{[1
,2
]}

Liu Y. ^{[2
]}

Jia X. ^{[2
]}

Luo N. ^{[1
,2
]}

Hao Z. ^{[1
,2
]}

Shi J. ^{[1
,2
]}

机构：

[1] Key Laboratory of Opto-Electronic Information Science and Technology of Jiangxi Province, Nanchang Hangkong University, Nanchang

[2] Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang

来源：

Guangxue Xuebao/Acta Optica Sinica | 2022年 / 42卷 / 12期

关键词：

Energy reflectivity; Frequency shift; Linewidth; Non-uniform volume grating; Scattering; Stimulated Brillouin scattering; Transmission matrix;

D O I：

10.3788/AOS202242.1229001

中图分类号：

学科分类号：

摘要：

To study the mechanism of stimulated Brillouin scattering (SBS) excited by high energy laser in water, a structure model of a non-uniform refractive index grating based on nonlinear polarization and nonlinear absorption of high intensity laser is proposed, and the physical mechanism and spectral characteristics of SBS in water are analyzed. The mechanism of the non-uniform refractive index grating generated by SBS effect in water is studied by establishing the modulation structure and periodic structure of the non-uniform refractive index grating. The effect of the structure of the non-uniform refractive index grating on the spectral characteristics of SBS, such as linewidth, frequency shift, and diffraction efficiency, is analyzed by using the transfer matrix method. Also, the theoretical simulation results are compared with the experimental results. The results indicate that the theoretical simulation results are in good agreement with the experimental results, and the physical mechanism of SBS in water can be analyzed effectively by using the structure model of the non-uniform refractive index grating. © 2022, Chinese Lasers Press. All right reserved.

引用

共 23 条

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