Antenna feedback scheme for achieving narrow beam emission from plasmonic lasers
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United States of America Patent
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May 23, 2017
Grant Date -
Jun 30, 2016
app pub date -
Dec 30, 2015
filing date -
Dec 30, 2014
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Abstract
A distributed antenna-coupling feedback scheme and specially designed distributed feedback (DFB) metallic cavity and grating for laser application and in particular to plasmonic lasers ensuring a predesigned phase condition such that a mode traveling inside a waveguide is coupled/phase-locked to a mode traveling on the top metal improving the beam quality of the laser.
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