Physics – Optics
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982stin...8231278z&link_type=abstract
Unknown
Physics
Optics
Astronomical Spectroscopy, Atmospheric Composition, Infrared Telescopes, Jupiter Atmosphere, Superheterodyne Receivers, Ammonia, Cassegrain Optics, Cryostats, Emission Spectra, Signal Processing, Systems Engineering, Tunable Lasers
Scientific paper
A tunable heterodyne receiver for the medium IR range was built and installed on the Cassegrain focus of an optical telescope. High resolution spectroscopy (wavelength/Delta wavelength 10 to the 5th power) for IR astronomy was investigated. The local oscillator of the receiver is a diode laser. Laser and optical input are treated by a common gas through-flow cryostat where the laser temperature is stabilized at Delta T/T 10 to the -4th power. The noise equivalent power in the 100 MHz optical bandwidth for continuous radiation is 5 X 10 to the -14th power W. The heterodyne receiver was laboratory tested for the determination of molecular constants, e.g., NH3 molecules. Astronomical measurements, using a 187 cm telescope, were made of NH3 line emission by the Jupiter atmosphere. Results show receiver sensitivity to be satisfactory.
No associations
LandOfFree
A tunable infrared heterodyne receiver for astronomical observation 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 A tunable infrared heterodyne receiver for astronomical observation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A tunable infrared heterodyne receiver for astronomical observation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1459021