Design of ultra-broadband graphene absorber using circuit theory
I propose a novel method for designing a broadband THz absorber by using periodic arrays of graphene ribbons on a Salisbury-screen-like structure. The recently proposed analytical circuit model of graphene arrays is used for obtaining analytical expressions for the input admittance of the proposed d...
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| Veröffentlicht in: | Journal of the Optical Society of America. B, Optical physics Optical physics, 2015-09, Vol.32 (9), p.1941-1946 |
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| Sprache: | eng |
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| container_end_page | 1946 |
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| container_issue | 9 |
| container_start_page | 1941 |
| container_title | Journal of the Optical Society of America. B, Optical physics |
| container_volume | 32 |
| creator | Khavasi, Amin |
| description | I propose a novel method for designing a broadband THz absorber by using periodic arrays of graphene ribbons on a Salisbury-screen-like structure. The recently proposed analytical circuit model of graphene arrays is used for obtaining analytical expressions for the input admittance of the proposed device. The input admittance is then adjusted to be closely matched to the free space in a wide frequency range. Consequently, it is demonstrated that a bandwidth of 90% absorption can be extended up to 100% of the central frequency with only one layer of patterned graphene. |
| doi_str_mv | 10.1364/JOSAB.32.001941 |
| format | Article |
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The recently proposed analytical circuit model of graphene arrays is used for obtaining analytical expressions for the input admittance of the proposed device. The input admittance is then adjusted to be closely matched to the free space in a wide frequency range. Consequently, it is demonstrated that a bandwidth of 90% absorption can be extended up to 100% of the central frequency with only one layer of patterned graphene.</description><subject>Admittance</subject><subject>Arrays</subject><subject>Circuits</subject><subject>Electrical impedance</subject><subject>Exact solutions</subject><subject>Frequency ranges</subject><subject>Graphene</subject><subject>Mathematical analysis</subject><issn>0740-3224</issn><issn>1520-8540</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNot0DtPwzAYhWELgUQpzKwZWdJ-vsRxNkq5q1IHYLZ8-dwGpXGxk6H_nkuZzvLqDA8h1xRmlEsxf12_Le5mnM0AaCPoCZnQikGpKgGnZAK1gJIzJs7JRc6fACCAsQm5vcfcbvoihmLshmRKm6Lx1vS-2CSz32KPhbE5JoupGHPbbwrXJje2QzFsMabDJTkLpst49b9T8vH48L58Llfrp5flYlU6VouhDEII6ZUJtUQFQSruDXNNFYSnWDkvGxe48opbDEEgldhYZ4FRBAqqqfiU3Bx_9yl-jZgHvWuzw64zPcYxa1orSWvOK_GTzo-pSzHnhEHvU7sz6aAp6F8r_WelOdNHK_4NjWhc6Q</recordid><startdate>20150901</startdate><enddate>20150901</enddate><creator>Khavasi, Amin</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20150901</creationdate><title>Design of ultra-broadband graphene absorber using circuit theory</title><author>Khavasi, Amin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c274t-f4446d8af76e80f683da2c95f4d1e5cd69cf38d83beff4e16e9bcb021e0108953</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Admittance</topic><topic>Arrays</topic><topic>Circuits</topic><topic>Electrical impedance</topic><topic>Exact solutions</topic><topic>Frequency ranges</topic><topic>Graphene</topic><topic>Mathematical analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Khavasi, Amin</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of the Optical Society of America. 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The input admittance is then adjusted to be closely matched to the free space in a wide frequency range. Consequently, it is demonstrated that a bandwidth of 90% absorption can be extended up to 100% of the central frequency with only one layer of patterned graphene.</abstract><doi>10.1364/JOSAB.32.001941</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0740-3224 |
| ispartof | Journal of the Optical Society of America. B, Optical physics, 2015-09, Vol.32 (9), p.1941-1946 |
| issn | 0740-3224 1520-8540 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1786173354 |
| source | Optica Publishing Group Journals |
| subjects | Admittance Arrays Circuits Electrical impedance Exact solutions Frequency ranges Graphene Mathematical analysis |
| title | Design of ultra-broadband graphene absorber using circuit theory |
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