Study of water vapor line parameters in the region around 1.1 µm by tunable diode laser spectroscopy. Issue 5 (14th March 2022)

• Record Type: Journal Article
• Authors: Zheng, Jianjie; Ma, Hongliang; Liu, Qiang; Qian, Xianmei; Zhu, Wenyue; Cao, Zhensong; Chen, Jie; Yang, Tao; Xu, Qiuyi
• Other Names: Ma Yufei guestEditor.; Kan Ruifeng guestEditor.; Mei Liang guestEditor.; Ma Weiguang guestEditor.
• Is Part Of: Microwave and optical technology letters. Volume 65:Issue 5(2023)
• Page Start: 1152
• Page End: 1161
• Publication Date: 2022-03-14
• Subjects: broadening coefficient -- line intensity -- line shape -- near infrared spectrum; Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.33207
• Languages: English
• ISSNs: 0895-2477

Abstract

Abstract: To analyze the absolute line intensities, as well as the coefficients of air‐ and self‐broadening of water vapor, 31 transition lines were measured using an external‐cavity diode laser (ECDL) in the range of 9090–9750 cm −1 . A multispectrum fitting (MSF) program was used in conjunction with a quadratic speed‐dependent Voigt profile (qSDVP) and a Voigt profile (VP) to extract the line intensities and self‐ and air‐broadening coefficients. Values at room temperature (296 K) were then compared with the HITRAN2016 and HITRAN2020 database. The analysis results show that the line intensities and air‐broadening coefficients are more consistent with the database while also verifying that the self‐broadening coefficients obtained based on qSDVP are larger than those based on VP.