First laboratory detection of an absorption line of the first overtone electric quadrupolar band of N₂ by CRDS near 2.2 μm

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• 作者：P. Čermá ; k^a ; ^b ; ^c ; ^{cermak@fmph.uniba.sk} ; S. Vasilchenko^b ; ^c ; ^d ; D. Mondelain^b ; ^c ; S. Kassi^b ; ^c ; A. Campargue^b ; ^c
• 关键词：Nitrogen ; Electric quadrupole ; CW-CRDS ; Cavity Ring Down Spectroscopy ; HITRAN ; Atmospheric window
• 刊名：Chemical Physics Letters
• 出版年：2017
• 出版时间：16 January 2017
• 年：2017
• 卷：668
• 期：Complete
• 页码：90-94
• 全文大小：1316 K
• 卷排序：668

文摘

Very high sensitivity CW-Cavity Ring Down spectroscopy of nitrogen near 2.2 μm. A sensitivity of αmin ∼ 1.2 × 10−11 cm−1 was achieved. The O(14) electric quadrupole transition of the 2–0 band of 14N2 was detected. First laboratory detection of an absorption line of the first overtone band of N2. Good agreement with theoretical values for the line positions and line intensities.