LIQUID CRYSTAL TUNABLE SINGLE-COAXIAL AND BICOAXIAL METAMATERIAL ELEMENTS

This document is a disclosure of two related classes of metamaterial elements, based on a set of planar geometries that are homeomorphic to a coaxial element, or a sphere together with a torus. These cavities support a set of lossy optical resonances, known as quasinormal modes. Depending on the sur...

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Bibliographische Detailangaben
Hauptverfasser:	BOWEN, Patrick T, DRISCOLL, Tom, TRAVERSO, Andrew J
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	This document is a disclosure of two related classes of metamaterial elements, based on a set of planar geometries that are homeomorphic to a coaxial element, or a sphere together with a torus. These cavities support a set of lossy optical resonances, known as quasinormal modes. Depending on the surrounding materials and the choice of quasinormal mode, the optical elements can be used either in transmission or reflection mode, and to generate either effective electric or magnetic dipoles. The metamaterial element is defined as a cavity with coaxial topology to operate in a particular range of quasinormal modes, defined by the mode numbers, within an operating bandwidth. The elements are tuned by application of a voltage differential to liquid crystal placed in the interior of the cavity of each respective element.