Switching of Photonic Crystal Lasers by Graphene

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dc.contributor.authorHwang, Min-Sooko
dc.contributor.authorKim, Ha-Reemko
dc.contributor.authorKim, Kyoung-Hoko
dc.contributor.authorJeong, Kwang-Yongko
dc.contributor.authorPark, Jin-Sungko
dc.contributor.authorChoi, Jae-Hyuckko
dc.contributor.authorKang, Ju-Hyungko
dc.contributor.authorLee, Jung Minko
dc.contributor.authorPark, Won Ilko
dc.contributor.authorSong, Jung-Hwanko
dc.contributor.authorSeo, Min-Kyoko
dc.contributor.authorPark, Hong-Gyuko
dc.date.accessioned2017-03-30T09:17:15Z-
dc.date.available2017-03-30T09:17:15Z-
dc.date.created2017-03-29-
dc.date.created2017-03-29-
dc.date.created2017-03-29-
dc.date.issued2017-03-
dc.identifier.citationNANO LETTERS, v.17, no.3, pp.1892 - 1898-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10203/222689-
dc.description.abstractUnique features of graphene have motivated the development of graphene-integrated photonic devices. In particular, the electrical tunability of graphene loss enables high-speed modulation of light and tuning of cavity resonances in graphene-integrated waveguides and cavities. However, efficient control of light emission such as lasing, using graphene, remains a challenge. In this work, we demonstrate on/off switching of single- and double-cavity photonic crystal lasers by electrical gating of a monolayer graphene sheet on top of photonic crystal cavities. The optical loss of graphene was controlled by varying the gate voltage V-g, with the ion gel atop the graphene sheet. First, the fundamental properties of graphene were investigated through the transmittance measurement and numerical simulations. Next, optically pumped lasing was demonstrated for a graphene-integrated single photonic crystal cavity at V-g below-0.6 V, exhibiting a low lasing threshold of -4801 mu W, whereas lasing was not observed at V-g above -0.6 V owing to the intrinsic optical loss of graphene. Changing quality factor of the graphene-integrated photonic crystal cavity enables or disables the lasing operation. Moreover, in the double-cavity photonic crystal lasers with graphene, switching of individual cavities with separate graphene sheets was achieved, and these two lasing actions were controlled independently despite the close distance of -2.2 mu m between adjacent cavities. We believe that our simple and practical approach for switching in graphene-integrated active photonic devices will pave the way toward designing high-contrast and ultracompact photonic integrated circuits.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.titleSwitching of Photonic Crystal Lasers by Graphene-
dc.typeArticle-
dc.identifier.wosid000396185800083-
dc.identifier.scopusid2-s2.0-85014953526-
dc.type.rimsART-
dc.citation.volume17-
dc.citation.issue3-
dc.citation.beginningpage1892-
dc.citation.endingpage1898-
dc.citation.publicationnameNANO LETTERS-
dc.identifier.doi10.1021/acs.nanolett.6b05207-
dc.contributor.localauthorSeo, Min-Kyo-
dc.contributor.nonIdAuthorHwang, Min-Soo-
dc.contributor.nonIdAuthorKim, Ha-Reem-
dc.contributor.nonIdAuthorKim, Kyoung-Ho-
dc.contributor.nonIdAuthorJeong, Kwang-Yong-
dc.contributor.nonIdAuthorPark, Jin-Sung-
dc.contributor.nonIdAuthorChoi, Jae-Hyuck-
dc.contributor.nonIdAuthorKang, Ju-Hyung-
dc.contributor.nonIdAuthorLee, Jung Min-
dc.contributor.nonIdAuthorPark, Won Il-
dc.contributor.nonIdAuthorSong, Jung-Hwan-
dc.contributor.nonIdAuthorPark, Hong-Gyu-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorGraphene-
dc.subject.keywordAuthorphotonic crystals-
dc.subject.keywordAuthornanolasers-
dc.subject.keywordAuthorswitching-
dc.subject.keywordPlusELECTRICAL CONTROL-
dc.subject.keywordPlusGATE DIELECTRICS-
dc.subject.keywordPlusBROAD-BAND-
dc.subject.keywordPlusION GEL-
dc.subject.keywordPlusMODULATION-
dc.subject.keywordPlusNANOCAVITY-
dc.subject.keywordPlusPHOTODETECTORS-
dc.subject.keywordPlusTRANSISTORS-
dc.subject.keywordPlusRESONANCE-
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