“Two-Pass” Brillouin Scattering Geometry for the Investigation of Opto-Acoustic Properties of Thin Films
“Two-Pass” Brillouin Scattering Geometry for the Investigation of Opto-Acoustic Properties of Thin Films
复制标题
用于研究薄膜光声特性的“双通道”布里渊散射几何
DOI:
10.1143/jjap.42.5865
复制
发表时间:
2003
影响因子:
1.5
通讯作者:
N. Ohtori
中科院分区:
文献类型:
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作者:
Kenzo Hisa;M. Matsukawa;N. Ohtori
A new optical geometry for Brillouin scattering measurement of thin films is proposed. Making use of the two incident laser beams focused on the sample, simultaneous measurements of 90A scattering and back scattering were performed. The strong scattering peaks in the spectra enabled simultaneous measurements of hypersonic wave velocity and refractive index. Actually, the appearance of anisotropy in the polypropylene (PP) film was continuously observed as an increase of birefringence during the ultra-drawing process.
DOI:
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发表时间:
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影响因子:
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