Comb-resolved spectroscopy with immersion grating in long-wave infrared

被引：20

作者：

Iwakuni, K. ^{[1
,2
,3
]}

Bui, T. Q. ^{[1
,2
,3
]}

Niedermeyer, J. F. ^{[1
,2
,3
]}

Sukegawa, T. ^{[4
]}

Ye, J. ^{[1
,2
,3
]}

机构：

[1] NIST, JILA, Boulder, CO 80309 USA

[2] Univ Colorado, Boulder, CO 80309 USA

[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[4] Canon Inc, 20-2 Kiyohara Kogyodanchi, Utsunomiya, Tochigi 3213292, Japan

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 03期

基金：

日本学术振兴会; 美国国家科学基金会;

关键词：

FREQUENCY COMB; FOURIER-TRANSFORM; RESOLUTION; BAND;

D O I：

10.1364/OE.27.001911

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have developed a dispersive spectrometer by using a compact immersion grating for direct frequency comb spectroscopy in the long-wave infrared region of 8-10 mu m for the first time. A frequency resolution of 460 MHz is achieved, which is the highest reported in this wavelength region with a dispersive spectrometer. We also demonstrate individual comb mode-resolved imaging by cavity filtering and apply this to obtain spectra of both simple and complex molecular spectra. These results indicate that the immersion grating spectrometer offers the next advancement for sensitive, high-resolution spectroscopy of transient and large/complex molecules when combined with cavity enhancement and cooling techniques. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：1911 / 1921

页数：11

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