Single-tone frequency-modulation spectroscopy with frequency-doubled current-modulated diode laser light

2002 ◽  
Vol 27 (9) ◽  
pp. 763 ◽  
Author(s):  
G. Hancock ◽  
V. L. Kasyutich ◽  
G. A. D. Ritchie
Keyword(s):  
Diode Laser ◽  
Frequency Modulation ◽  
Laser Light ◽  
Tone Frequency ◽  
Modulation Spectroscopy ◽  
Single Tone

Two-tone frequency modulation spectroscopy from laser light scattered off a hard target

1996 ◽  
Vol 35 (24) ◽  
pp. 4735 ◽  
Author(s):  
P. E. Powers ◽  
C. A. Taatjes ◽  
Thomas J. Kulp
Keyword(s):  
Frequency Modulation ◽  
Laser Light ◽  
Tone Frequency ◽  
Modulation Spectroscopy

High-sensitivity frequency-modulation spectroscopy with a GaAlAs diode laser

1989 ◽  
Vol 6 (5) ◽  
pp. 871 ◽  
Author(s):  
Liang-Guo Wang ◽  
Duncan A. Tate ◽  
Haris Riris ◽  
Thomas F. Gallagher
Keyword(s):  
Diode Laser ◽  
Frequency Modulation ◽  
High Sensitivity ◽  
Modulation Spectroscopy

scholarly journals Recent Developments in Modulation Spectroscopy for Methane Detection Based on Tunable Diode Laser

2019 ◽  
Vol 9 (14) ◽  
pp. 2816 ◽  
Author(s):  
Fei Wang ◽  
Shuhai Jia ◽  
Yonglin Wang ◽  
Zhenhua Tang
Keyword(s):  
Semiconductor Lasers ◽  
Frequency Modulation ◽  
Near Infrared ◽  
Infrared Region ◽  
Tunable Diode Laser ◽  
Tone Frequency ◽  
Modulation Spectroscopy ◽  
Methane Absorption ◽  
Recent Developments ◽  
Methane Detection

In this review, methane absorption characteristics mainly in the near-infrared region and typical types of currently available semiconductor lasers are described. Wavelength modulation spectroscopy (WMS), frequency modulation spectroscopy (FMS), and two-tone frequency modulation spectroscopy (TTFMS), as major techniques in modulation spectroscopy, are presented in combination with the application of methane detection.

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