DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Sang Gil | ko |
dc.contributor.author | Lee, Kanghee | ko |
dc.contributor.author | Han, Daehoon | ko |
dc.contributor.author | Ahn, Jaewook | ko |
dc.contributor.author | Jeong, KI-HUN | ko |
dc.date.accessioned | 2015-03-27T08:04:05Z | - |
dc.date.available | 2015-03-27T08:04:05Z | - |
dc.date.created | 2014-11-11 | - |
dc.date.created | 2014-11-11 | - |
dc.date.created | 2014-11-11 | - |
dc.date.issued | 2014-09 | - |
dc.identifier.citation | APPLIED PHYSICS LETTERS, v.105, no.9 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | http://hdl.handle.net/10203/194535 | - |
dc.description.abstract | Structuring at subwavelength scales brings out artificial media with anomalous optical features called metamaterials. All-dielectric metamaterials have high potential for practical applications over the whole electromagnetic spectrum owing to low loss and optical isotropy. Here, we report subwavelength silicon through-hole arrays as an all-dielectric gradient index metamaterial with broadband THz operation. The unit cell consists of a single subwavelength through-hole on highly resistive monocrystalline silicon. Depending on the fill-factor and period, the effective index was linearly modulated at 0.3-1.6 THz. The experimental results also demonstrate silicon gradient refractive index (Si-GRIN) lenses with parabolic index profiles through the spatial modification of a single unit cell along the radial direction. Si-GRIN lenses either focus 0.4-1.6 THz beam to the diffraction-limit or serve as a flat and thin solid immersion lens on the backside of THz photoconductive antenna for highly efficient pulse extraction. This all-dielectric gradient index metamaterial opens up opportunities for integrated THz GRIN optics. | - |
dc.language | English | - |
dc.publisher | AMER INST PHYSICS | - |
dc.title | Subwavelength silicon through-hole arrays as an all-dielectric broadband terahertz gradient index metamaterial | - |
dc.type | Article | - |
dc.identifier.wosid | 000342749800001 | - |
dc.identifier.scopusid | 2-s2.0-84907332724 | - |
dc.type.rims | ART | - |
dc.citation.volume | 105 | - |
dc.citation.issue | 9 | - |
dc.citation.publicationname | APPLIED PHYSICS LETTERS | - |
dc.identifier.doi | 10.1063/1.4894054 | - |
dc.contributor.localauthor | Ahn, Jaewook | - |
dc.contributor.localauthor | Jeong, KI-HUN | - |
dc.contributor.nonIdAuthor | Lee, Kanghee | - |
dc.contributor.nonIdAuthor | Han, Daehoon | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | FREQUENCIES | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | CLOAK | - |
dc.subject.keywordPlus | LENS | - |
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