Whispering mode micro-resonator
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United States of America Patent
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Aug 30, 1994
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app pub date -
Sep 11, 1992
filing date -
Sep 17, 1991
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Abstract
Device for electromagnetic emission depends on total internal reflection-on whispering gallery mode cavitation about the periphery of a disk-shaped element of sub-wavelength thickness. As a laser, operating above threshold, the design is alternative to that of the Surface Emitting Laser for integration in integrated circuitry-either all-optic or electro-optic. Operating below threshold, it may serve as a Light Emitting Diode. The same operational considerations-based on improved efficacy for whispering gallery mode devices as due to relevant dimension/s of sub-wavelength thickness-is of consequence for a category of devices serving other than as simple emitters. Such three port devices may serve as switches, modulators, etc.
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