Brillouin scattering spectrum for liquid detection and applications in oceanography
액체 탐지에 사용되는 브리연 산란 스펙트럼 및 해양학에서의 응용
Espectro de dispersión de Brillouin para la detección de líquidos y sus aplicaciones en oceanografía
Spectre de diffusion Brillouin pour la détection des liquides et son application en océanographie
спектр рассеяния бриллюэна для жидкостного обнаружения и его применение в океанографии
Yuanqing Wang 王元庆 ¹, Jinghao Zhang 张景豪 ², Yongchao Zheng 郑永超 ², Yangrui Xu 徐杨睿 ¹, Jiaqi Xu 许佳琪 ¹, Jiao Jiao 焦蛟 ³, Yun Su 苏云 ², Hai-Feng Lü 吕海峰 ³ ⁴, Kun Liang 梁琨 ¹
¹ School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan 430074, China
中国 武汉 华中科技大学电子信息与通信学院
² Beijing Institute of Space Mechanics and Electricity, Beijing 100076, China
中国 北京 北京空间机电研究所
³ School of Physics and School of Aeronautics and Astronautics, University of Electronic Science and Technology of China, Chengdu 610054, China
中国 成都 中国电子科技大学 物理学院 航空航天学院
⁴ State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
中国 北京 清华大学物理系 低维量子物理国家重点实验室
Opto-Electronic Advances, 26 August 2022

The Brillouin scattering spectrum has been used to investigate the properties of a liquid medium. Here, we propose an improved method based on the double-edge technique to obtain the Brillouin spectrum of a liquid.

We calculated the transmission ratios and deduced the Brillouin shift and linewidth to construct the Brillouin spectrum by extracting the Brillouin edge signal through filtered double-edge data. We built a detection system to test the performance of this method and measured the Brillouin spectrum for distilled water at different temperatures and compared it with the theoretical prediction. The observed difference between the experimental and theoretical values for Brillouin shift and linewidth is less than 4.3 MHz and 3.2 MHz, respectively.

Moreover, based on the double-edge technique, the accuracy of the extracted temperatures and salinity is approximately 0.1 °C and 0.5%, respectively, indicating significant potential for application in water detection and oceanography.
Opto-Electronic Advances_1
Opto-Electronic Advances_2
Opto-Electronic Advances_3
Reviews and Discussions
High-speed visible light communication based on micro-LED: A technology with wide applications in next generation communication
Directional high-efficiency nanowire LEDs with reduced angular color shift for AR and VR displays
Comparative analysis of NovaSeq 6000 and MGISEQ 2000 single-cell RNA sequencing data
Integrated liver proteomics and metabolomics identify metabolic pathways affected by pantothenic acid deficiency in Pekin ducks
Photo-processing of perovskites: current research status and challenges
Influence of N-doping on dielectric properties of carbon-coated copper nanocomposites in the microwave and terahertz ranges
Towards integrated mode-division demultiplexing spectrometer by deep learning
Discovery of novel aspartate derivatives as highly potent and selective FXIa inhibitors
Large-scale and high-quality III-nitride membranes through microcavity-assisted crack propagation by engineering tensile-stressed Ni layers
Metasurface-based nanoprinting: principle, design and advances
All-optical logic gate computing for high-speed parallel information processing
100 Hertz frame-rate switching three-dimensional orbital angular momentum multiplexing holography via cross convolution

Previous Article                                Next Article
Copyright © Hot Paper