Mathematics – Logic
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989infph..29..185n&link_type=abstract
(Eidgenoessische Technische Hochschule Zuerich, International Conference on Infrared Physics, 4th, Zurich, Switzerland, Aug. 22-
Mathematics
Logic
2
Fabry-Perot Interferometers, Infrared Space Observatory (Iso), Long Wave Radiation, Space Observations (From Earth), European Space Agency, High Resolution, Technological Forecasting
Scientific paper
Results are reported from a performance evaluation of the 45-90-micron and 90-180-micron Fabry-Perot interferometers being developed for the Long-Wavelength Spectrometer of the ESA IR Space Observatory (scheduled launch 1993). A tunable continuous-flow CO2 laser is used to pump a sealed FIR laser cavity filled with CH3OH at pressures of a few times 100 microtorr; the chopped FIR output line is detected by a Golay cell with a phase-sensitive module, and the resulting signal is recorded as the Fabry-Perot interferometer is scanned under computer control. The results are presented in graphs, and it is shown that the instrument profiles are in good agreement with calculations based on classical Airy functions.
Furniss I.
Glencross William M.
Naylor David A.
Towlson W. A.
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