Title :
Rapid, remote sensing with a coherent-comb infrared spectrometer
Author :
Schliesser, A. ; Brehm, M. ; van der Weide, D. ; Keilmann, F.
Author_Institution :
Max-Planck-Inst. fur Biochem., Munchen, Germany
Abstract :
We report operational results obtained with our novel coherent Fourier-transform spectrometer (c-FTIR) that operates without any moving part and features a diffraction-limited, laser-like probe beam. First we demonstrate reliable, high-resolution performance by directly comparing 8-12μm transmission spectra with those from conventional FTIR. Then, going far beyond conventional possibilities, we report taking spectra at a record repeat rate of 1000/s, and probing molecular atmospheric absorption over a path length of 44 m.
Keywords :
Fourier transform spectra; Fourier transform spectrometers; infrared spectrometers; measurement by laser beam; remote sensing by laser beam; 44 m; 8 to 12 micron; Fourier-transform spectrometer; c-FTIR spectrometer; coherent-comb infrared spectrometer; diffraction-limited laser-like probe beam; molecular atmospheric absorption; rapid remote sensing; Gas lasers; Infrared spectra; Laser beams; Optical imaging; Optical scattering; Probes; Pump lasers; Radio frequency; Remote sensing; Spectroscopy;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572398
