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Becker, R. A.

Publications and source records attributed to Becker, R. A..

Convolution using guided acoustooptical interaction in thin-film waveguides

Interaction of two antiparallel acoustic surface waves (ASW) with an optical guided wave has been investigated theoretically as well as experimentally to obtain the convolution of two ASW signals. The maximum time-bandwidth product that can be achieved by such a convolver is shown to be of the order of 1000 or more. The maximum dynamic range can be as large as 83 dB.

Chang, W. S. C.

Photoheliograph optical system

Apollo telescope mount photoheliograph for high resolution cinematographs in white light near ultraviolet and narrow band hydrogen alpha

Becker, R. A.