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Article: Enhanced Emission from WSe2 Monolayers Coupled to Circular Bragg Gratings

TitleEnhanced Emission from WSe2 Monolayers Coupled to Circular Bragg Gratings
Authors
Duong, Ngoc My HanhXu, Zai QuanKianinia, MehranSu, RongbinLiu, ZhuojunKim, SejeongBradac, CarloTran, Toan TrongWan, YiLi, Lain JongSolntsev, AlexanderLiu, JinAharonovich, Igor
Keywords2D materials
Purcell enhancement
valley polarization
on-chip photonics
circular Bragg grating
Issue Date2018
Citation
ACS Photonics, 2018, v. 5, n. 10, p. 3950-3955 How to Cite?
DOI: http://dx.doi.org/10.1021/acsphotonics.8b00865
AbstractTwo-dimensional transition-metal dichalcogenides (TMDC) are of great interest for on-chip nanophotonics due to their unique optoelectronic properties. Here, we propose and realize coupling of tungsten diselenide (WSe ) monolayers to circular Bragg grating structures to achieve enhanced emission. The interaction between WSe and the resonant mode of the structure results in Purcell-enhanced emission, and the symmetric geometrical structure improves the directionality of the out-coupling stream of emitted photons. Furthermore, this hybrid structure produces a record high contrast of the spin valley readout (>40%) revealed by the polarization-resolved photoluminescence (PL) measurements. Our results are promising for on-chip integration of TMDC monolayers with optical resonators for nanophotonic circuits. 2 2
Persistent Identifierhttp://hdl.handle.net/10722/298281
ISI Accession Number ID
WOS:000447954200009

 

DC FieldValueLanguage
dc.contributor.authorDuong, Ngoc My Hanh-
dc.contributor.authorXu, Zai Quan-
dc.contributor.authorKianinia, Mehran-
dc.contributor.authorSu, Rongbin-
dc.contributor.authorLiu, Zhuojun-
dc.contributor.authorKim, Sejeong-
dc.contributor.authorBradac, Carlo-
dc.contributor.authorTran, Toan Trong-
dc.contributor.authorWan, Yi-
dc.contributor.authorLi, Lain Jong-
dc.contributor.authorSolntsev, Alexander-
dc.contributor.authorLiu, Jin-
dc.contributor.authorAharonovich, Igor-
dc.date.accessioned2021-04-08T03:08:04Z-
dc.date.available2021-04-08T03:08:04Z-
dc.date.issued2018-
dc.identifier.citationACS Photonics, 2018, v. 5, n. 10, p. 3950-3955-
dc.identifier.urihttp://hdl.handle.net/10722/298281-
dc.description.abstractTwo-dimensional transition-metal dichalcogenides (TMDC) are of great interest for on-chip nanophotonics due to their unique optoelectronic properties. Here, we propose and realize coupling of tungsten diselenide (WSe ) monolayers to circular Bragg grating structures to achieve enhanced emission. The interaction between WSe and the resonant mode of the structure results in Purcell-enhanced emission, and the symmetric geometrical structure improves the directionality of the out-coupling stream of emitted photons. Furthermore, this hybrid structure produces a record high contrast of the spin valley readout (>40%) revealed by the polarization-resolved photoluminescence (PL) measurements. Our results are promising for on-chip integration of TMDC monolayers with optical resonators for nanophotonic circuits. 2 2-
dc.languageeng-
dc.relation.ispartofACS Photonics-
dc.subject2D materials-
dc.subjectPurcell enhancement-
dc.subjectvalley polarization-
dc.subjecton-chip photonics-
dc.subjectcircular Bragg grating-
dc.titleEnhanced Emission from WSe2 Monolayers Coupled to Circular Bragg Gratings-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acsphotonics.8b00865-
dc.identifier.scopuseid_2-s2.0-85053633554-
dc.identifier.volume5-
dc.identifier.issue10-
dc.identifier.spage3950-
dc.identifier.epage3955-
dc.identifier.eissn2330-4022-
dc.identifier.isiWOS:000447954200009-
dc.identifier.issnl2330-4022-

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