Compact large-aperture Fabry-Perot interferometer modules for gas spectroscopy at mid-IR
Compact large-aperture Fabry-Perot interferometer modules for gas spectroscopy at mid-IR
复制标题
用于中红外气体光谱的紧凑型大口径法布里-珀罗干涉仪模块
DOI:
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
T. Waldmann
中科院分区:
文献类型:
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作者:
U. Kantojärvi;A. Varpula;Tapani Antila;C. Holmlund;J. Mäkynen;A. Näsilä;R. Mannila;A. Rissanen;J. Antila;R. Disch;T. Waldmann
VTT has developed Fabry-Pérot Interferometers (FPI) for visible and infrared wavelengths since 90’s. Here we present two new platforms for mid-infrared gas spectroscopy having a large optical aperture to provide high optical throughput but still enabling miniaturized instrument size. First platform is a tunable filter that replaces a traditional filter wheel, which operates between wavelengths of 4-5 um. Second platform is for correlation spectroscopy where the interferometer provides a comb-like transmission pattern mimicking absorption of diatomic molecules at the wavelength range of 4.7-4.8 um. The Bragg mirrors have 2-4 thin layers of polysilicon and silicon oxide.
DOI:
10.1016/j.jqsrt.2013.07.002
发表时间:
2013-11-01
影响因子:
2.3
作者:
Rothman, L. S.;Gordon, I. E.;Wagner, G.
通讯作者:
Wagner, G.