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Lee, Jongwon
Nanostructured Photonic Devices Lab.
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dc.citation.endPage 69 -
dc.citation.number 7507 -
dc.citation.startPage 65 -
dc.citation.title NATURE -
dc.citation.volume 511 -
dc.contributor.author Lee, Jongwon -
dc.contributor.author Tymchenko, Mykhailo -
dc.contributor.author Argyropolous, Christos -
dc.contributor.author Chen, Pai-Yen -
dc.contributor.author Lu, Feng -
dc.contributor.author Demmerle, Frederic -
dc.contributor.author Boehm, Gerhard -
dc.contributor.author Amann, Markus-Christian -
dc.contributor.author Alu, Andrea -
dc.contributor.author Belkin, Mikhail A. -
dc.date.accessioned 2023-12-22T02:36:35Z -
dc.date.available 2023-12-22T02:36:35Z -
dc.date.created 2015-09-16 -
dc.date.issued 2014-07 -
dc.description.abstract Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known nonlinear optical responses in condensed matter systems-but this nonlinear response is limited to light with electric field polarized normal to the semiconductor layers(1-7). In a different context, plasmonic metasurfaces (thin conductor-dielectric composite materials) have been proposed as a way of strongly enhancing light-matter interaction and realizing ultrathin planarized devices with exotic wave properties(8-11). Here we propose and experimentally realize metasurfaces with a record-high nonlinear response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with nonlinear susceptibility of greater than 5 x 10(4) picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order nonlinear response in optical metasurfaces measured so far(12-15). The proposed structures can act as ultrathin highly nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up-and down-conversions, phase conjugation and all-optical control and tunability over a surface. -
dc.identifier.bibliographicCitation NATURE, v.511, no.7507, pp.65 - 69 -
dc.identifier.doi 10.1038/nature13455 -
dc.identifier.issn 0028-0836 -
dc.identifier.scopusid 2-s2.0-84903697816 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/17209 -
dc.identifier.url http://www.nature.com/nature/journal/v511/n7507/full/nature13455.html -
dc.identifier.wosid 000338199400036 -
dc.language 영어 -
dc.publisher NATURE PUBLISHING GROUP -
dc.title Giant nonlinear response from plasmonic metasurfaces coupled to intersubband transitions -
dc.type Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -

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