Brillouin scattering spectrum for liquid detection and applications in oceanography
Abstrak
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 pre-diction. 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.
Penulis (9)
Yuanqing Wang
Jinghao Zhang
Yongchao Zheng
Yangrui Xu
Jiaqi Xu
Jiao Jiao
Yun Su
Hai-feng Lü
K. Liang
Akses Cepat
- Tahun Terbit
- 2023
- Bahasa
- en
- Total Sitasi
- 58×
- Sumber Database
- Semantic Scholar
- DOI
- 10.29026/oea.2023.220016
- Akses
- Open Access ✓