{"created":"2023-05-15T14:59:09.155884+00:00","id":80258,"links":{},"metadata":{"_buckets":{"deposit":"42a3a281-dd17-40c7-be20-ef708e6b1ca3"},"_deposit":{"created_by":1,"id":"80258","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"80258"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00080258","sets":["2"]},"author_link":["898419","898418"],"item_10003_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"100855","bibliographicVolumeNumber":"37","bibliographic_titles":[{"bibliographic_title":"High Energy Density Physics"}]}]},"item_10003_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Frequency-resolved optical gating (FROG) is a novel means of measuring the fast motion of a critical density  surface during relativistic laser–plasma interaction. Herein, we present a design and demonstration results for  a new single-shot FROG system and optical transport system for characterizing the instantaneous intensity and  phase at the LFEX (Laser for Fast Ignition Experiment) laser facility at the Institute of Laser Engineering of Osaka University. At LFEX, the laser intensity at the vacuum window is intrinsically high because of two unique  properties, namely, the large F-number of the off-axis parabolic mirror and the small radius of the interaction  chamber. Consequently, to obtain an accurate FROG trace, attention must be paid to spectrum modulation due to  self-phase modulation. The appropriate laser intensity for FROG operation was investigated experimentally, and  an optical transport system with an energy attenuator composed of reflective optics was designed to eliminate  the concern of spectrum modulation from measurements. A FROG trace recorded at LFEX shot with 161 J energy  was reconstructed 100 times using an iterative phase-retrieval algorithm. Despite some differences in structure,  the reconstructed spectrum agrees reasonably well with the spectrum obtained by a time-integrated spectrometer. This shows that the developed FROG system and the optical transport system can measure the instantaneous  intensity and phase of a laser pulse without spectrum modulation.","subitem_description_type":"Abstract"}]},"item_10003_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.hedp.2020.100855","subitem_relation_type_select":"DOI"}}]},"item_10003_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://www.sciencedirect.com/science/article/abs/pii/S157418182030094X","subitem_relation_type_select":"URI"}}]},"item_10003_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1574-1818","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kojima, Sadaoki"}],"nameIdentifiers":[{"nameIdentifier":"898418","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kojima, Sadaoki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"898419","nameIdentifierScheme":"WEKO"}]}]},"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":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Development of single-shot frequency-resolved optical gating for characterizing the instantaneous intensity and phase of LFEX laser pulses","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Development of single-shot frequency-resolved optical gating for characterizing the instantaneous intensity and phase of LFEX laser pulses"}]},"item_type_id":"10003","owner":"1","path":["2"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-07-31"},"publish_date":"2020-07-31","publish_status":"0","recid":"80258","relation_version_is_last":true,"title":["Development of single-shot frequency-resolved optical gating for characterizing the instantaneous intensity and phase of LFEX laser pulses"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:20:53.359464+00:00"}