{"created":"2023-05-15T14:59:16.201317+00:00","id":80415,"links":{},"metadata":{"_buckets":{"deposit":"0ebf20f6-b2a9-43f6-869b-432384c6a766"},"_deposit":{"created_by":1,"id":"80415","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"80415"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00080415","sets":["1"]},"author_link":["885081","885092","885096","885084","885108","885091","885104","885097","885082","885074","885078","885103","885098","885100","885101","885089","885093","885073","885086","885087","885106","885109","885102","885080","885083","885085","885077","885090","885099","885094","885071","885095","885075","885076","885107","885072","885105","885088","885079"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicPageStart":"783-1","bibliographicVolumeNumber":"10","bibliographic_titles":[{"bibliographic_title":"Crystals"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Ultra-high intensity femtosecond lasers have now become excellent scientific tools for the study of extreme material states in small scale laboratory settings. The invention of chirped-pulse amplification (CPA) combined with titanium-doped sapphire (Ti:sapphire) crystals have enabled realization of such lasers. The pursuit of ultra-high intensity science and applications is driving world-wide development of new capabilities. A petawatt (PW=10^15 W), femtosecond (fs=10^-15 s), repetitive (0.1 Hz), high beam quality J-KAREN-P (Japan Kansai Advanced Relativistic ENgineering Petawatt) Ti:sapphire CPA laser has been recently constructed and used for accelerating charged particles (ions and electrons) and generating coherent and incoherent ultra-short pulse, high energy photon (x-ray) radiation. Ultra-high intensities of 10^22 W/cm^2 with high temporal contrast of 10^-12 and a minimal number of pre-pulses on target has been demonstrated with the J-KAREN-P laser. Here, world-wide ultra-high intensity laser development is summarized, the output performance and spatiotemporal quality improvement of the J-KAREN-P laser are described, and some experimental results are briefly introduced. ","subitem_description_type":"Abstract"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.3390/cryst10090783","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":"https://www.mdpi.com/2073-4352/10/9/783","subitem_relation_type_select":"URI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2073-4352","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":"Kiriyama, 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