{"created":"2024-05-17T02:12:45.885140+00:00","id":2000919,"links":{},"metadata":{"_buckets":{"deposit":"0f20c0d1-b810-4d9f-b83d-3634416e4bbc"},"_deposit":{"created_by":17,"id":"2000919","owner":"17","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"2000919"},"status":"published"},"_oai":{"id":"oai:ynu.repo.nii.ac.jp:02000919","sets":["1040:1042","495:496"]},"author_link":[],"control_number":"2000919","item_2_biblio_info_8":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2024-03-18","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"12","bibliographicVolumeNumber":"124","bibliographic_titles":[{"bibliographic_title":"Applied Physics Letters","bibliographic_titleLang":"en"}]}]},"item_2_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Driving fundamental excitations via strong light fields is one of the most important issues in solid state physics, which opens up new avenues to control material properties. Two-dimensional materials are fruitful platforms for future semiconductor applications, including opto-electronic and phononic devices, yet the phonon dynamics and nonlinear phonon–phonon coupling remain under-explored. Here, we demonstrate coherent phonon excitation in thin films of the layered two-dimensional semiconductor WSe2 induced by intense and broadband ultrafast terahertz (THz) pulses. We performed THz Kerr effect spectroscopy and observed coherent phonon oscillations assigned to the E2g optical phonon mode. The phonon amplitude displays a quadratic THz field strength dependence, indicating a sum-frequency THz excitation process. Furthermore, pump–probe polarization and crystal orientation relationships, supported by symmetry analysis of the nonlinear susceptibility and Raman tensors, provide helpful insight into nonlinear phonon–phonon interactions and potential coherent control schemes for the manipulation of phonon polarization and material properties in WSe2.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_2_publisher_35":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Institute of Physics","subitem_publisher_language":"en"}]},"item_2_relation_13":{"attribute_name":"item_2_relation_13","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1063/5.0191558","subitem_relation_type_select":"DOI"}}]},"item_2_rights_14":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Applied Physics Letters and may be found at https://doi.org/10.1063/5.0191558 .","subitem_rights_language":"en","subitem_rights_resource":"https://publishing.aip.org/resources/researchers/rights-and-permissions/sharing-content-online/"}]},"item_2_source_id_11":{"attribute_name":"item_2_source_id_11","attribute_value_mlt":[{"subitem_source_identifier":"AA00543431","subitem_source_identifier_type":"NCID"}]},"item_2_source_id_9":{"attribute_name":"item_2_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"10773118","subitem_source_identifier_type":"EISSN"}]},"item_2_version_type_18":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Department of Physics, Graduate School of Engineering Science, Yokohama National University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Kusaba, Satoshi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"0000-0002-5313-4817","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0002-5313-4817"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Division of Chemistry and Chemical Engineering, California Institute of Technology","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Lin, Haw-Wei","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"0000-0002-5208-7385","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0002-5208-7385"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Department of Physics, Graduate School of Engineering Science, Yokohama National University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Tamaki, Ryo","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Department of Physics, Graduate School of Engineering Science, Yokohama National University","affiliationNameLang":"en"}]},{"affiliationNames":[{"affiliationName":"Semiconductor and Quantum Integrated Electronics Research Center, Institute for Multidisciplinary Sciences, Yokohama National University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Katayama, Ikufumi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"0000-0001-6788-7732","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0001-6788-7732"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Department of Physics, Graduate School of Engineering Science, Yokohama National University","affiliationNameLang":"en"}]},{"affiliationNames":[{"affiliationName":"Semiconductor and Quantum Integrated Electronics Research Center, Institute for Multidisciplinary Sciences, Yokohama National University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Takeda, Jun","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"0000-0002-1197-6821","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0002-1197-6821"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Division of Geological and Planetary Sciences, California Institute of Technology","affiliationNameLang":"en"}]},{"affiliationNames":[{"affiliationName":"Division of Chemistry and Chemical Engineering, California Institute of Technology","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Blake, A., Geoffrey","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"0000-0003-0787-1610","nameIdentifierScheme":"ORCID","nameIdentifierURI":"https://orcid.org/0000-0003-0787-1610"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-05-17"}],"displaytype":"detail","fileDate":[{"fileDateType":"Issued","fileDateValue":"2024-03-18"}],"filename":"APL23-AR-12342.pdf","filesize":[{"value":"1.7 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Pick","subitem_title_language":"en"}]},"item_type_id":"2","owner":"17","path":["496","1042"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-05-17"},"publish_date":"2024-05-17","publish_status":"0","recid":"2000919","relation_version_is_last":true,"title":["Terahertz sum-frequency excitation of coherent optical phonons in the two-dimensional semiconductor WSe2 Editor’s Pick"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2024-10-28T05:51:11.094232+00:00"}