{"created":"2023-07-25T10:37:45.373376+00:00","id":141,"links":{},"metadata":{"_buckets":{"deposit":"aebe0776-da3f-40b9-8e4b-a60e1d5e46a5"},"_deposit":{"created_by":5,"id":"141","owners":[5],"pid":{"revision_id":0,"type":"depid","value":"141"},"status":"published"},"_oai":{"id":"oai:jcga.repo.nii.ac.jp:00000141","sets":["1:9:40"]},"author_link":["265","266","267","268","269"],"control_number":"141","item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-03-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1-2","bibliographicPageEnd":"38","bibliographicPageStart":"29","bibliographicVolumeNumber":"59","bibliographic_titles":[{"bibliographic_title":"海上保安大学校研究報告, 理工学系"},{"bibliographic_title":"Report of Japan Coast Guard Academy Part 2 (The Science and Engineering Section)","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A newly developed lens positioner and an analogue-to-digital (AD)board are used in a low-costsub-THz spectroscopic system with a multimode laser diode and photoconductive antennas (PAs).   Among PAs, the spiral-type ones are preferable for the system, because they have high eficiency for emission and detection of the sub-THz radiation.　 However, positioning of the forcusing lens requires high accuracy (～1μｍ) and then it takes much time. 　The new lens positioner utilizes leverage in a commercially available mirror holder and allows for more precise adjustment than the conventional one.　 In addition, the system employs a lock-in amplifier, which is rather expensive. 　The AD board sosts about one third of the lock-in amplifier and enables cost reduction of the system.　Further, the signal-to-noise ratio is improved by about 1.4 times and the measurement time can be reduced to half.","subitem_description_type":"Abstract"}]},"item_10002_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15053/0000000141","subitem_identifier_reg_type":"JaLC"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"海上保安大学校"}]},"item_10002_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.15053/2015.21.04","subitem_relation_type_select":"DOI"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10088865","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0287-2951","subitem_source_identifier_type":"ISSN"}]},"item_10002_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"森川, 治"},{"creatorName":"モリカワ, オサム","creatorNameLang":"ja-Kana"},{"creatorName":"MORIKAWA, Osamu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"265","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小野, 高志"},{"creatorName":"オノ, タカシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"266","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"池尻, 拓樹"},{"creatorName":"イケジリ, ヒロキ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"267","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ONO, Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"268","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"IKEJIRI, Hiroki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"269","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":"2023-05-19"}],"displaytype":"detail","filename":"2_59-1-81-4_Morikawa.pdf","filesize":[{"value":"13.4 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"半導体レーザを用いた廉価型sub-THz分光器の構成部品の改善","url":"https://jcga.repo.nii.ac.jp/record/141/files/2_59-1-81-4_Morikawa.pdf"},"version_id":"f147da2b-2631-40f8-9037-5075e98cd06d"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"sub-THz spectrometer","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"lens positioner","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"AD converter","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"signal-to-noise ratio","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"半導体レーザを用いた廉価型sub-THz分光器の構成部品の改善","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"半導体レーザを用いた廉価型sub-THz分光器の構成部品の改善","subitem_title_language":"ja"},{"subitem_title":"Improvement of parts in a low-cost sub-THz spectrometer using a laser diode","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"5","path":["40"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-05-19"},"publish_date":"2023-05-19","publish_status":"0","recid":"141","relation_version_is_last":true,"title":["半導体レーザを用いた廉価型sub-THz分光器の構成部品の改善"],"weko_creator_id":"5","weko_shared_id":-1},"updated":"2023-10-05T05:44:31.297851+00:00"}