Ajou University repository

Enhanced Optical Third-Harmonic Generation in Phase-Engineered MoTe2Thin Films
Citations

SCOPUS

8

Citation Export

DC Field Value Language
dc.contributor.authorHa, Seongju-
dc.contributor.authorKim, Hyeonkyeong-
dc.contributor.authorNam, Hyunjun-
dc.contributor.authorChoi, Jungseok-
dc.contributor.authorChae, Kwanbyung-
dc.contributor.authorLee, Jae Ung-
dc.contributor.authorPark, Ji Yong-
dc.contributor.authorYoo, Youngdong-
dc.contributor.authorYeom, Dong Il-
dc.date.issued2022-08-17-
dc.identifier.issn2330-4022-
dc.identifier.urihttps://aurora.ajou.ac.kr/handle/2018.oak/32880-
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85137122236&origin=inward-
dc.description.abstractMolybdenum ditelluride (MoTe2) is a relatively unexplored layered transition metal dichalcogenide in nonlinear optics. Several recent studies have shown that MoTe2 has strong second-order optical nonlinearities originating from tellurium atoms. However, the third-order optical nonlinearities of MoTe2 have not been explored yet, except for the nonparametric saturable absorption process. Here we report the enhanced optical third-harmonic generation in phase-engineered MoTe2 thin films. MoTe2 films, including 2H and 1T′ phases simultaneously, are synthesized by the flux-controlled phase-engineering method, and their nonlinear response is characterized. We observe that the 2H-MoTe2 film exhibits up to a 15-fold stronger nonlinear signal than that of the 1T′-phase film. The estimated third-order effective nonlinear susceptibility of 2H-MoTe2 is 9.3 × 10-19 m2 V-2 maximum, which is larger than highly nonlinear layered materials such as molybdenum disulfide. Our MoTe2 film synthesized with the desired phase over a large area will be a potential building block for ultrathin nonlinear photonics.-
dc.description.sponsorshipThis work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT; NRF-2019R1A2C1006119, 2019R1C1C1008070 and 2021R1A4A1032085), and by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. NRF-2021R1A6A1A10044950). This work was also supported by Institute for Information and Communications Technology Promotion (IITP) grant funded by the Korea government (MSIT) (2021-0-00185).-
dc.language.isoeng-
dc.publisherAmerican Chemical Society-
dc.subject.meshDichalcogenides-
dc.subject.meshIn-phase-
dc.subject.meshOptical third-harmonic generation-
dc.subject.meshStructural phasis-
dc.subject.meshSynthesised-
dc.subject.meshThin-films-
dc.subject.meshThird order optical susceptibility-
dc.subject.meshThird-harmonic generation-
dc.subject.meshTransition metal dichalcogenides-
dc.subject.meshTransition metal dichalcogenides (TMD)-
dc.titleEnhanced Optical Third-Harmonic Generation in Phase-Engineered MoTe2Thin Films-
dc.typeArticle-
dc.citation.endPage2606-
dc.citation.number8-
dc.citation.startPage2600-
dc.citation.titleACS Photonics-
dc.citation.volume9-
dc.identifier.bibliographicCitationACS Photonics, Vol.9 No.8, pp.2600-2606-
dc.identifier.doi10.1021/acsphotonics.2c00222-
dc.identifier.scopusid2-s2.0-85137122236-
dc.identifier.urlhttp://pubs.acs.org/journal/apchd5-
dc.subject.keywordmolybdenum ditelluride-
dc.subject.keywordnonlinear optics-
dc.subject.keywordstructural phase-
dc.subject.keywordthird-harmonic generation-
dc.subject.keywordthird-order optical susceptibility-
dc.subject.keywordtransition metal dichalcogenides-
dc.type.otherArticle-
dc.description.isoafalse-
dc.subject.subareaElectronic, Optical and Magnetic Materials-
dc.subject.subareaBiotechnology-
dc.subject.subareaAtomic and Molecular Physics, and Optics-
dc.subject.subareaElectrical and Electronic Engineering-
Show simple item record

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Yoo, Youngdong Image
Yoo, Youngdong유영동
Department of Chemistry
Read More

Total Views & Downloads

File Download

  • There are no files associated with this item.