{"created":"2023-05-15T14:37:43.353047+00:00","id":48663,"links":{},"metadata":{"_buckets":{"deposit":"e7e3eca0-4a69-43a4-9d01-e8ad0abd27e8"},"_deposit":{"created_by":1,"id":"48663","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"48663"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00048663","sets":["1"]},"author_link":["733803","733799","733780","733775","733777","733779","733793","733800","733811","733808","733794","733804","733791","733807","733786","733809","733784","733801","733802","733796","733810","733806","733781","733792","733797","733789","733788","733774","733798","733785","733812","733783","733778","733790","733773","733782","733805","733795","733787","733776"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageStart":"7","bibliographicVolumeNumber":"2","bibliographic_titles":[{"bibliographic_title":"Quantum Beam Science"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We discuss requirements on relativistic-irradiance (I0 > 10^18 W/cm^2) high-power (multi-terawatt) ultrashort (femtosecond) lasers for efficient generation of high-order harmonics in gas jet targets in a new regime discovered recently (Pirozhkov et al., 2012). Here, we present the results of several experimental campaigns performed with different irradiances, analyse the obtained results and derive the required laser parameters. In particular, we found that the root mean square (RMS) wavefront error should be smaller than ~100 nm (~λ/8). Further, the angular dispersion should be kept considerably smaller than the diffraction divergence, i.e., μrad level for 100–300-mm beam diameters. The corresponding angular chirp should not exceed 10^−2 μrad/nm for a 40-nm bandwidth. We show the status of the J-KAREN-P laser (Kiriyama et al., 2015; Pirozhkov et al., 2017) and report on the progress towards satisfying these requirements.","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"MDPI"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.3390/qubs2010007","subitem_relation_type_select":"DOI"}}]},"item_8_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.mdpi.com/2412-382X/2/1/7/htm","subitem_relation_type_select":"URI"}}]},"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":"ピロジコフ, アレキサンダー"}],"nameIdentifiers":[{"nameIdentifier":"733773","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"エシロケポフ, ティムル"}],"nameIdentifiers":[{"nameIdentifier":"733774","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"A. Pikuz, T."}],"nameIdentifiers":[{"nameIdentifier":"733775","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ya. Faenov, A."}],"nameIdentifiers":[{"nameIdentifier":"733776","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"匂坂, 明人"}],"nameIdentifiers":[{"nameIdentifier":"733777","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小倉, 浩一"}],"nameIdentifiers":[{"nameIdentifier":"733778","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"林, 由紀雄"}],"nameIdentifiers":[{"nameIdentifier":"733779","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小瀧, 秀行"}],"nameIdentifiers":[{"nameIdentifier":"733780","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"N. 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Yoshiaki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"733808","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Bulanov, Sergey","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"733809","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kondo, Kiminori","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"733810","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kiriyama, Hiromitsu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"733811","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kando, Masaki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"733812","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":"journal 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