A Width Measurement Method of Line Shape Based on Second Harmonic Peak and Modulation Amplitude

The line width of different line shapes is a very important parameter in absorption spectroscopy sensing techniques. Based on the high sensitivity and low noise properties of wavelength modulation spectroscopy, we report a novel line width measurement method. After theoretically proving the relation...

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Bibliographic Details
Main Authors: Shan Lin, Jun Chang, Jiachen Sun, Zihan Wang, Minghui Mao
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/1/476