USE OF GLASS-BEADS FILTER IN SCANNING FABRY-PEROT INTERFEROMETRY

被引:0
作者
DODO, T
SUGAWA, M
HASHIMOTO, F
MATSUKI, N
机构
[1] Department of Physics, Ehime University, Matsuyama
[2] Boiler Division, Ishikawajima-Harima Heavy Industries Co. Ltd, Kotoku, Tokyo
[3] Course of Electromagnetic Energy Engineering, Osaka University, Suita, Osaka, 565, Yamada-Oka
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1991年 / 30卷 / 01期
关键词
FAR INFRARED SPECTROMETRY; LOW-PASS FILTER; FABRY-PEROT INTERFEROMETER; GLASS BEAD FILTER; ELECTRON CYCLOTRON EMISSION; INTERFERENCE FILTER;
D O I
10.1143/JJAP.30.178
中图分类号
O59 [应用物理学];
学科分类号
摘要
In FIR spectrometry, an interference low-pass filter is used to cut the harmonics of a Fabry-Perot interferometer (FPI). The interference low-pass filter has sharp cutoff characteristics, but has leakage at higher harmonics of the cuton frequency. The appropriate sized glass bead filter can suppress this leakage. The combined use of an interference filter and a glass bead filter gives good performance in FIR spectrometry.
引用
收藏
页码:178 / 179
页数:2
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