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Updated: Aug 12, 2026

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
Published on: March 22, 2019
Pressure-Broadening Investigation of NO2 in the Near Infrared
1Dipartimento di Scienze Fisiche, Universita di Napoli "Federico II", Mostra d'Oltremare Pad. 20, Naples, I-80125, Italy
Abstract:
In this paper we report the data for self-, oxygen-, and nitrogen-broadening coefficients for 6 NO2 lines belonging to two different bands: the (0 3 0)-(0 0 0) vibrational transition of the A2B2 <-- X2A1 system at 8360 A and the (2 13 1)-(0 0 0) vibrational transition within the X2A1 electronic ground state at 7390 A. These measurements were performed using a differential absorption spectrometer based on semiconductor diode lasers emitting in the near-infrared region. We also report wavelength measurements for 14 lines of the above-cited bands obtained by means of a Michelson wavemeter with an accuracy of one part in 10(7). Copyright 1997 Academic Press. Copyright 1997Academic Press
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