Influences of optical breakdown on stimulated Brillouin scattering
Year: 2005
Type: article
Abstract: Avalanche ionization model is introduced to the coupled stimulated Brillouin scattering (SBS) equations. Numerical simulation of SBS energy reflectivity as a function of pump intensity is made with and without the optical breakdown factor in the equations. In the experiment, purified and unpurified CCl４ media are studied with an Nd:YAG laser system with Q switch, the results are found to agree well with the numerical solutions. It is observed that under conditions that the optical breakdown does not occur, the energy reflectivity increases nonlinearly with pump intensity until reaching a certain value above which it tends to grow slowly. In cases with the breakdown, the energy reflectivity first increases nonlinearly with the pump intensity to a peak value and then decreases dramatically as optical breakdown occurs. The stability of energy reflectivity in the cases without optical breakdown is obviously better than cases otherwise.
Source: Acta Physica Sinica
DOI: 10.7498/aps.54.5654
Authors: Hasi Wu-Li-Ji, Lü Zhi-Wei, He Wei-Ming, Li Qiang, Ba De-Xin, (1)哈尔滨工业大学光电子技术研究所,哈尔滨 150001; (2)哈尔滨工业大学光电子技术研究所,哈尔滨 150001;内蒙古民族大学化学学院,通辽 028043
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W337215520