Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1987-12-28
1989-06-20
McGraw, Vincent P.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250341, 356 43, 374161, G01K 1118, G01K 1300
Patent
active
048411507
ABSTRACT:
Semiconductors may be optically tested for their temperatures by illuminating them with tunable monochromatic electromagnetic radiation and observing the light reflected off of them. A transition point will occur when the wavelength of the light corresponds with the actual band gap energy of the semiconductor. At the transition point, the image of the semiconductor will appreciably darken as the light is transmitted through it, rather than being reflected off of it. The wavelength of the light at the transition point corresponds to the actual band gap energy and the actual temperature of the semiconductor.
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Auton William G.
McGraw Vincent P.
Singer Donald J.
The United States of America as represented by the Secretary of
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