Acousto-optic spectrometer for radio astronomy

Details Acousto-optic spectrometer for radio astronomy Acousto-optic spectrometer for radio astronomy

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980hst..rept..385c&link_type=abstract

In NASA. Langley Res. Center Heterodyne Systems and Technol., Pt. 2 p 385-397 (SEE N80-29672 20-36)

Physics

Optics

Acousto-Optics, Astronomical Spectroscopy, High Frequencies, Laser Spectroscopy, Optical Heterodyning, Radio Astronomy, Bragg Cells, Bulk Acoustic Wave Devices, High Resolution, Interstellar Chemistry, Line Spectra, Molecular Spectra, Photodiodes, Spectral Sensitivity, Surface Acoustic Wave Devices

Scientific paper

A prototype acousto-optic spectrometer which uses a discrete bulk acoustic wave Itek Bragg cell, 5 mW Helium Neon laser, and a 1024 element Reticon charge coupled photodiode array is described. The analog signals from the photodiode array are digitized, added, and stored in a very high speed custom built multiplexer board which allows synchronous detection of weak signals to be performed. The experiment is controlled and the data are displayed and stored with an LSI-2 microcomputer system with dual floppy discs. The performance of the prototype acousto-optic spectrometer obtained from initial tests is reported.

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