Real-time processor for stellar speckle interferometry using microchannel spatial light modulator

Details Real-time processor for stellar speckle interferometry using microchannel spatial light modulator Real-time processor for stellar speckle interferometry using microchannel spatial light modulator

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1347..450o&link_type=abstract

IN: Optical information-processing systems and architectures II; Proceedings of the Meeting, San Diego, CA, July 9-13, 1990 (A92

Physics

1

Light Modulation, Microchannel Plates, Optical Data Processing, Speckle Interferometry, Stellar Spectra, Fourier Transformation, Power Spectra, Real Time Operation, Spatial Resolution

Scientific paper

To obtain the averaged Fourier power spectrum of a time-varying stellar speckle images from a binary star a portable real-time Fourier-transform processor is developed for stellar speckle interferometry, in which the Fourier transform of the image is done optically by using a microchannel spatial light modulator. Several double star images are analyzed on the telescope sites by the real-time processor. The cycle time of 2-10 Hz is achieved in this instrument depending upon incoming light level.

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