Infrared upconversion for astronomical applications

Statistics – Applications

Scientific paper

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Astronomical Spectroscopy, Infrared Spectra, Laser Applications, Argon Lasers, Black Body Radiation, Brightness Temperature, Crystals, Laser Outputs, Lithium Compounds, Wavelengths

Scientific paper

The performance of an upconversion system is examined for observation of astronomical sources in the low to middle infrared spectral range. Theoretical values for the performance parameters of an upconversion system for astronomical observations are evaluated in view of the conversion efficiencies, spectral resolution, field of view, minimum detectable source brightness and source flux. Experimental results of blackbody measurements and molecular absorption spectrum measurements using a lithium niobate upconverter with an argon-ion laser as the pump are presented. Estimates of the expected optimum sensitivity of an upconversion device which may be built with the presently available components are given.

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