Wavelength modulation spectroscopy of formaldehyde using 3µm DFG laser

Ryohei Fujisawa,Masaki Asobe,Akira Katoh,Shigeru Yamaguchi,Akio Tokura,Hirokazu Takenouchi

Wavelength modulation spectroscopy of formaldehyde using 3µm DFG laser

2016

Ryohei Fujisawa
Masaki Asobe
Akira Katoh
Shigeru Yamaguchi
Akio Tokura
Hirokazu Takenouchi

Effect of modulation condition of 3µm DFG laser on intensity noise in wavelength modulation spectroscopy was studied. The reduction of the intensity noise enabled real time detection of formaldehyde without baseline subtraction.

Keywords:

Spectroscopy
Laser
Far-infrared laser
Nuclear magnetic resonance
Wavelength
Materials science
Modulation
Formaldehyde
wavelength modulation spectroscopy
Optics
mid infrared laser
baseline subtraction

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