A FOURIER-TRANSFORM INFRARED SPECTROMETER WITH A COMPOSITE INTERFEROMETER FOR SOFT MODE STUDIES

被引：10

作者：

WADA, M ^{[1
]}

SHIRAWACHI, K ^{[1
]}

NISHIZAWA, S ^{[1
]}

机构：

[1] JASCO JAPAN SPECT CO LTD,HACHIOJI 192,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1991年 / 30卷 / 05期

关键词：

FT-IR SPECTROSCOPY; INTERFEROMETER; FAR-INFRARED; SOFT MODE; PHASE TRANSITION; FERROELECTRICS;

D O I：

10.1143/JJAP.30.1122

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Fourier transform infrared spectrometer has a new design of composite construction which allows it to be alternatively utilized for both the amplitude-divided two-beam interferometer and the polarization-divided two-beam one. A wide range of spectral wavenumbers to 4 cm-1 can be covered with changes of beam splitters, light sources and detectors except for a change of the main optical configuration. By means of the spectrometer with a silicon bolometer, the soft phonon mode which associates the structural phase transition has been measured in ferroelectric Li2Ge7O15 single crystals. The performance of the spectrometer for soft mode studies is estimated.

引用

页码：1122 / 1126

页数：5

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