Laser-based measurements of line strength, self- and pressure-broadening coefficients of the H35Cl R(3) absorption line in the first overtone region for pressures up to 1 MPa

• Verfasst von: Ortwein, Pascal [VerfasserIn]
• Verfasst von: Woiwode, W. [VerfasserIn]
• Verfasst von: Wagner, Steven [VerfasserIn]
• Verfasst von: Gisi, M. [VerfasserIn]
• Verfasst von: Ebert, Volker [VerfasserIn]
• Titel: Laser-based measurements of line strength, self- and pressure-broadening coefficients of the H35Cl R(3) absorption line in the first overtone region for pressures up to 1 MPa
• Verf.angabe: P. Ortwein, W. Woiwode, S. Wagner, M. Gisi, V. Ebert
• Jahr: 2010
• Umfang: 7 S.
• Fussnoten: Im Text ist "35" hochgestellt ; Online veröffentlicht: 23 December 2009 ; Gesehen am 16.06.2023
• Titel Quelle: Enthalten in: Applied physics / B
• Ort Quelle: Berlin : Springer, 1981
• Jahr Quelle: 2010
• Band/Heft Quelle: 100(2010), 2, Seite 341-347
• ISSN Quelle: 1432-0649
• DOI: doi:10.1007/s00340-009-3862-8
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Absorption Line
• Sach-SW: Gaussian Width
• Sach-SW: Line Strength
• Sach-SW: Line Width
• Sach-SW: Tunable Diode Laser Absorption Spectroscopy
• K10plus-PPN: 1850445737

Abstract

A high-resolution spectrometer based on a vertical-cavity surface-emitting laser (VCSEL) was developed and used to determine the line strength S(T0) =12.53(11) × 10−21 cm−1 /(molec cm−2 ) and the self-broadening coefficient γ 0HCl = 0.021787(61) cm−1 /atm of the R(3) absorption line in the first rovibrational overtone (2 ← 0) band of H 35 Cl. Furthermore, the first laser-based high-pressure study on the pressure broadening of HCl by He, N 2 and O 2(γ 0 N 2 = 0.07292(5) cm−1 /atm, γ 0 He =0.02113(1) cm−1 /atm, γ 0 O 2 = 0.03978(6) cm−1 /atm) is presented covering pressures of up to 1 MPa. The results are compared to previously available low-pressure data.