Configurable geometric metasurface antenna
A tunable metasurface is provided. The tunable metasurface includes a mirror, a dielectric layer disposed on the mirror, a metallic antenna and a phase change material (PCM) layer. The PCM layer is interposed between the dielectric layer and the metallic antenna. The PCM layer is configured to be am...
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| creator | Lai, Kafai Cohen, Guy M Falk, Abram L Farmer, Damon Brooks |
| description | A tunable metasurface is provided. The tunable metasurface includes a mirror, a dielectric layer disposed on the mirror, a metallic antenna and a phase change material (PCM) layer. The PCM layer is interposed between the dielectric layer and the metallic antenna. The PCM layer is configured to be amorphous or crystalline. The mirror, the dielectric layer, the metallic antenna and the PCM layer cooperatively form a Fabry Perot cavity in which light incident on the metallic antenna from free space is reflected between the mirror and the metallic antenna. The PCM layer has blanket dimensions relative to those of the metallic antenna such that the Fabry Perot cavity is critically coupled with the free space when the PCM layer is only one of amorphous and crystalline. |
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The PCM layer has blanket dimensions relative to those of the metallic antenna such that the Fabry Perot cavity is critically coupled with the free space when the PCM layer is only one of amorphous and crystalline.</description><language>eng</language><subject>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 ; FREQUENCY-CHANGING ; NON-LINEAR OPTICS ; OPTICAL ANALOGUE/DIGITAL CONVERTERS ; OPTICAL LOGIC ELEMENTS ; OPTICS ; PHYSICS ; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231017&DB=EPODOC&CC=US&NR=11789334B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231017&DB=EPODOC&CC=US&NR=11789334B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Lai, Kafai</creatorcontrib><creatorcontrib>Cohen, Guy M</creatorcontrib><creatorcontrib>Falk, Abram L</creatorcontrib><creatorcontrib>Farmer, Damon Brooks</creatorcontrib><title>Configurable geometric metasurface antenna</title><description>A tunable metasurface is provided. 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The tunable metasurface includes a mirror, a dielectric layer disposed on the mirror, a metallic antenna and a phase change material (PCM) layer. The PCM layer is interposed between the dielectric layer and the metallic antenna. The PCM layer is configured to be amorphous or crystalline. The mirror, the dielectric layer, the metallic antenna and the PCM layer cooperatively form a Fabry Perot cavity in which light incident on the metallic antenna from free space is reflected between the mirror and the metallic antenna. The PCM layer has blanket dimensions relative to those of the metallic antenna such that the Fabry Perot cavity is critically coupled with the free space when the PCM layer is only one of amorphous and crystalline.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | 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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF |
| title | Configurable geometric metasurface antenna |
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