Physics
Scientific paper
Mar 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994inpht..35..477s&link_type=abstract
Infrared Physics & Technology, Volume 35, Issue 2-3, p. 477-486.
Physics
6
Scientific paper
The recent developments of IR heterodyne and high resolution spectroscopy at the University of Cologne are presented. By using an impedance matched HEMT amplifier together with newly developed HgCdTe-mixers very low noise temperatures of 2100 K (DSB, corrected) have been achieved, which is only 50% above the quantum limit. In addition, very broad banded detection of the heterodyne signals was obtained with a 1.4 GHz, 2000 channel acousto-optical spectrometer. First results with a tuneable infrared diode laser as local oscillator have been obtained. For the interpretation of atmospheric absorption signals laboratory measurements of pressure effects are made using infrared diode laser spectroscopy with very high frequency resolution by frequency stabilization of the laser, and very low noise data acquisition by signal averaging methods.
No associations
LandOfFree
High resolution diode laser and heterodyne spectroscopy with applications toward remote sensing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High resolution diode laser and heterodyne spectroscopy with applications toward remote sensing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High resolution diode laser and heterodyne spectroscopy with applications toward remote sensing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1871958