ULTRA-SMALL CAVITY WITH REFLECTING METASURFACES
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Mar 23, 2017
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Jan 30, 2015
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Jan 30, 2014
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Abstract
The present invention provides a new approach for subwavelength cavity solutions. Employment of a reflecting metasurface based on plasmonic nanostructure elements changes the cavity resonance condition that currently causes restrictions on minimum length. The short length of wave propagation between the cavity walls is compensated by strong localization of electromechanical energy near the metasurface walls, which experience considerable phase shifts over a very small distance. Subwavelength 2D and 3D cavities find implementation as laser sources, optical parametric oscillators, interferometers, laser phase and frequency stabilizers, laser spatial and temporal filters, adaptive beam, and pulse shaping devices.
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