We successfully demonstrated NO2 detection based on differential absorption cavity ringdown spectroscopy using a dual wavelength passively locked external cavity diode laser. Selective trace NO2 detection was achieved in a 2 ml compact ringdown cell.
© 2006 Optical Society of America
J. Sato, K. Yamauchi, K. Nemoto, M. Endo, S. Yamaguchi, K. Nanri, and T. Fujioka, "Trace NO2 Detection Based on Differential Cavity Ringdown Spectroscopy Using a Dual Wavelength Passively Locked External Cavity Diode Laser," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CThDD3.
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