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首页> 外文期刊>Journal of Experimental and Theoretical Physics >Coherent spectroscopy of Mandelstam-Brillouin scattering in spatially inhomogeneous media
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Coherent spectroscopy of Mandelstam-Brillouin scattering in spatially inhomogeneous media

机译：空间非均匀介质中Mandelstam-Brillouin散射的相干光谱

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摘要

Mandelstam-Brillouin (MB) steady-state scattering in an elastic medium with a dense local zone inhomogeneity is considered in the 1D approximation. It is shown that for a certain size of inhomogeneity, the scattered radiation spectrum contains individual resonances whose frequencies depend on the elastic properties of microscopic inclusions. Experiments were performed using coherent four-photon scattering spectroscopy in the range 0-1 cm~(-1) with a resolution of 0.06 cm~(-1) in specially processed distilled water and in an aqueous solution of α-chymotrypsin albumin. In both media, the presence of MB resonances displaced is detected relative to the water resonance (≈0.25 cm~(-1)) in different directions and corresponding to different types of microinclusions.
机译：一维近似中考虑了在具有密集局部区域不均匀性的弹性介质中的Mandelstam-Brillouin（MB）稳态散射。结果表明，对于一定程度的不均匀性，散射的辐射光谱包含各个共振，共振的频率取决于微观夹杂物的弹性。使用相干四光子散射光谱在0-1 cm〜（-1）范围内，分辨率为0.06 cm〜（-1）的条件下在经过特殊处理的蒸馏水中和α-胰凝乳蛋白酶白蛋白水溶液中进行实验。在两种介质中，相对于水共振（≈0.25cm〜（-1））在不同方向上并对应于不同类型的微包裹体，都检测到了位移的MB共振的存在。

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