Extended sub-Doppler resolution spectroscopy of the v3 band of methane

被引：10

作者：

Kocheril, Philip A. ^{[1
]}

Markus, Charles R. ^{[1
]}

Esposito, Anne Marie ^{[1
]}

Schrader, Alex W. ^{[1
]}

Dieter, Thomas S. ^{[2
,4
]}

McCall, Benjamin J. ^{[1
,2
,3
]}

机构：

[1] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[3] Univ Illinois, Dept Astron, Urbana, IL 61801 USA

[4] Cymer Inc, 17075 Thornmint Court, San Diego, CA 92127 USA

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2018年 / 215卷

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

Methane; Mid-infrared; Sub-Doppler; MU-M; FREQUENCY LIST; INTENSITIES; (CH4)-C-12; TRANSITION; SPECTRUM; REGION;

D O I：

10.1016/j.jqsrt.2018.04.033

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have performed sub-Doppler resolution rovibrational spectroscopy of the v(3) band of methane ((CH4)-C-12) in the mid-infrared using an optical parametric oscillator in a double-pass configuration for saturated absorption. An optical frequency comb was used for absolute frequency calibration. We have measured 22 methane line centers ranging from the P(13) to R(10) transitions with a typical uncertainty of 0.40 MHz. These measurements improve previously known transition frequencies by at least an order of magnitude. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：9 / 12

页数：4

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