Title :
A cw tunable infrared spectrometer based on the difference-frequency generation in AgGaS/sub 2/ in the 5-/spl mu/m region-applicability for line broadening investigations and trace gas detection
Author :
Kronfeldt, H.-D. ; Basar, G. ; Kelz, T. ; Nagele, M. ; Sunpf, B.
Author_Institution :
Opt. Inst., Tech. Univ. Berlin, Germany
Abstract :
Summary form only given. A cw tunable infrared spectrometer based on the difference-frequency generation (DFG) in a nonlinear crystal AgGaS/sub 2/ (l=25 mm, noncritical type I phase matching) was constructed. The system was designed for the wavenumber region around 1900-2100 cm/sup -1/. In this spectral region the molecular gases like, CO, N/sub 2/O, and NO, have pronounced absorption lines excluding interferences from the major atmospheric gases.
Keywords :
infrared spectra; infrared spectrometers; optical frequency conversion; optical materials; silver compounds; spectral line broadening; ternary semiconductors; tuning; /spl mu/m region-applicability; 1900 to 2100 cm/sup -1/; 25 mm; 5 mum; AgGaS/sub 2/; CO; N/sub 2/O; NO; cw tunable infrared spectrometer; difference-frequency generation; line broadening investigations; major atmospheric gases; molecular gases; noncritical type I phase matching; nonlinear crystal; pronounced absorption lines; spectral region; trace gas detection; wavenumber region; Diode lasers; Frequency conversion; Gas lasers; Gases; Infrared spectra; Laser tuning; Optimized production technology; Power generation; Spectroscopy; Tunable circuits and devices;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
