{"created":"2021-03-01T06:35:48.965558+00:00","id":18422,"links":{},"metadata":{"_buckets":{"deposit":"cf84bd32-5841-4956-8fc3-b01b6596bb3e"},"_deposit":{"id":"18422","owners":[],"pid":{"revision_id":0,"type":"depid","value":"18422"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00018422","sets":["171:1108:1218:1238","9:504:1111:1220:1239"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"新しい速度・位相整合法を用いたXカットニオブ酸リチウム光変調器"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1996-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"176","bibliographicPageStart":"169","bibliographicVolumeNumber":"48","bibliographic_titles":[{"bibliographic_title":"生産研究"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"New xc-cut, yc-propagating lithium niobate optical modulators with simultaneous phase velocity and impedance matching are presented and numerically analyzed. It is found that ridge optical waveguides placed between thick coplanar travelling wave electrodes enable to match microwave effective index to 2.1 and electrode characteristic impedance to 50 Ω. Three configurations are proposed. In the first, the electrodes are supported by silicon oxide buffer layer in the grooves between ridge regions. In the second and third, the electrodes are plated either on the lower or upper part of thin membrane with high resistivity and low dielectric permittivity. Numerical results show that when the membrane supports thick electrodes, the best device performance of 3-dB electrical bandwidth exceeding 144 GHz and 6.4 V driving voltage can be obtained.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"31623","nameIdentifierScheme":"WEKO"}],"names":[{"name":"フィリップ, アレシュ"}]},{"nameIdentifiers":[{"nameIdentifier":"31624","nameIdentifierScheme":"WEKO"}],"names":[{"name":"藤井, 陽一"}]}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学生産技術研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00127075","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0037105X","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"547","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Institute of Industrial Science, the University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Department of Electrical Engineering and Electronics, Institute of Industrial Science, University of Tokyo 応用電子工学"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Filip, Ales"}],"nameIdentifiers":[{"nameIdentifier":"31621","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Fujii, Yoichi"}],"nameIdentifiers":[{"nameIdentifier":"31622","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-08"}],"displaytype":"detail","filename":"sk048003007.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"sk048003007.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/18422/files/sk048003007.pdf"},"version_id":"de4f2fa7-2220-4043-a5bb-c3b6a9bb6426"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"研究解説 : New X-cut Lithium Niobate Optical Modulator with Velocity and Impedance Matching","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"研究解説 : New X-cut Lithium Niobate Optical Modulator with Velocity and Impedance Matching"}]},"item_type_id":"4","owner":"1","path":["1238","1239"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-12-25"},"publish_date":"2012-12-25","publish_status":"0","recid":"18422","relation_version_is_last":true,"title":["研究解説 : New X-cut Lithium Niobate Optical Modulator with Velocity and Impedance Matching"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T03:57:18.006805+00:00"}