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选用对 532 nm绿光吸收很弱的氯化铜甲醇溶液 (氯化铜为掺杂物质 )作散射介质 ,实验研究了不同掺杂浓度的甲醇溶液所产生的后向受激布里渊散射光的远场光斑大小、脉冲波形、相对能量的差异 ,分析讨论了介质化学纯度对后向受激布里渊散射光的影响。
In this paper, we choose the copper chloride solution (copper chloride as dopant) which is weakly absorbed by 532 nm green light as the scattering medium, and experimentally study the effects of backscattered Brillouin scattered light generated by different doping concentrations of methanol solution The influence of the chemical purity of the medium on the backscattered Brillouin scattering light is analyzed and discussed.