Spacing of visible interference pattern determines frequency of infrared radiation. Variable photoconductivity grating formed by interference of two visible laser beams intersecting on surface of proposed AlGaAs device substituted for fixed metal grating. Proposed device provides higher output-power density and greater tunability.
Optically-Tuned Far-Infrared Device
NASA Tech Briefs ; 14 , 5
1990-05-01
Miscellaneous
No indication
English
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