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首页> 外文期刊>Optics Letters >High-spectral-resolution stimulated Rayleigh-Brillouin scattering at 1 μm
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High-spectral-resolution stimulated Rayleigh-Brillouin scattering at 1 μm

机译:1μm的高光谱分辨率激发瑞利-布里渊散射

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摘要

We have demonstrated stimulated Rayleigh-Brillouin scattering at a wavelength of 1.064 μm, using an injection-seeded Nd:YAG laser as a pump laser and a tunable diode laser as a probe laser. Spectra with a good signal-to-noise ratio are obtained despite the low probe-beam power and small gain coefficient in the infrared. Stimulated Rayleigh scattering is readily observable in organic and many other liquids because of absorption by the OH and CH overtone or combination bands. The absorption also causes an asymmetry in the stimulated Brillouin peak. A Rayleigh linewidth of 8 MHz is measured with this approach.
机译:我们已经证明,使用注入播种的Nd:YAG激光器作为泵浦激光器,使用可调二极管激光器作为探测激光器,在1.064μm波长处激发瑞利-布里渊散射。尽管探测光束功率低,红外增益系数小,但仍可获得具有良好信噪比的光谱。在有机和许多其他液体中,由于OH和CH泛音或组合谱带的吸收,很容易观察到受激瑞利散射。吸收还导致受激布里渊峰不对称。用这种方法测量的瑞利线宽为8 MHz。

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