{"created":"2023-05-15T14:48:41.883035+00:00","id":66713,"links":{},"metadata":{"_buckets":{"deposit":"3e7398e9-759b-4613-b78e-3cac7e2bca52"},"_deposit":{"created_by":1,"id":"66713","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"66713"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00066713","sets":["10:29"]},"author_link":["656037","656054","656032","656052","656053","656042","656033","656041","656043","656049","656056","656039","656055","656035","656038","656045","656047","656044","656034","656036","656031","656050","656040","656048","656046","656057","656051"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2018-03-23","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We have discovered a new regime of bright coherent x-ray generation by relativistic plasma singularities driven by a multi-terawatt femtosecond laser focused onto a gas jet target [1]-[2]. The laser pulse propagates through the plasma, pushes electrons producing an electron-free cavity, and generates a bow wave [3]; singularities are produced at the joining of the cavity wall and the bow wave and represent point-like coherent x-ray emitters, which is a realization of Burst Intensification by Singularity Emitting Radiation (BISER) proposed in [4].\n\\nIn previous experiments, BISER occurred spontaneously, after the relativistic self-focusing, resulting in relatively large fluctuations of the x-ray source position and low overall stability. Based on simulations with the Particle-In-Cell (PIC) REMP code [5], we propose to control the BISER with a tailored plasma density profile. We demonstrate the BISER control employing a sharp plasma density jump generated by a shock in supersonic gas flow in experiments with the J-KAREN-P laser [6]-[7]. The induced BISER resulted in controllable x-ray source with low-jitter position and higher x-ray yield. Our results, on the one hand, represent an important step towards implementation of a next-generation bright compact coherent x-ray source, and on the other hand, demonstrate the new technique of relativistic self-focusing control and its diagnostics.\n\\nWe thank the J-KAREN-P laser operation group and I. Daito for technical support. We acknowledge the financial support from JSPS Kakenhi JP 25390135 and JP 26707031.\n\\n[1]A. S. Pirozhkov, et al., Phys. Rev. Lett. 108, 135004-5, (2012).\n[2]A. S. Pirozhkov et al., New J. Phys. 16, 093003-30 (2014).\n[3]T. Zh. Esirkepov, Y. Kato, and S. V. Bulanov, Phys. Rev. Lett. 101, 265001-4 (2008).\n[4]A. S. Pirozhkov, T. Zh. Esirkepov, et al., Scientific Reports 7, 17968 (2017).\n[5]T. Zh. Esirkepov, Comput. Phys. Comm. 135, 144-153 (2001).\n[6]H. Kiriyama, et al., IEEE J.S.T.Quantum Electron. 21, 1601118-18 (2015).\n[7]A. S. Pirozhkov, et al., Opt. Express 25, 20486-20501 (2017).","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"JPS Spring Meeting","subitem_description_type":"Other"}]},"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":"656031","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"エシロケポフ, ティムル"}],"nameIdentifiers":[{"nameIdentifier":"656032","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"匂坂, 明人"}],"nameIdentifiers":[{"nameIdentifier":"656033","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小倉, 浩一"}],"nameIdentifiers":[{"nameIdentifier":"656034","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中新, 信彦"}],"nameIdentifiers":[{"nameIdentifier":"656035","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"黄, 開"}],"nameIdentifiers":[{"nameIdentifier":"656036","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"A., Pikuz T."}],"nameIdentifiers":[{"nameIdentifier":"656037","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ya., Faenov A."}],"nameIdentifiers":[{"nameIdentifier":"656038","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Namba, S."}],"nameIdentifiers":[{"nameIdentifier":"656039","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"福田, 祐仁"}],"nameIdentifiers":[{"nameIdentifier":"656040","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"コーガ, ジェームズ"}],"nameIdentifiers":[{"nameIdentifier":"656041","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"桐山, 博光"}],"nameIdentifiers":[{"nameIdentifier":"656042","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"近藤, 公伯"}],"nameIdentifiers":[{"nameIdentifier":"656043","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"河内, 哲哉"}],"nameIdentifiers":[{"nameIdentifier":"656044","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神門, 正城"}],"nameIdentifiers":[{"nameIdentifier":"656045","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ピロジコフ アレキサンダー","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656046","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"エシロケポフ ティムル","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656047","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"匂坂 明人","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656048","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小倉 浩一","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656049","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中新 信彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656050","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"黄 開","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656051","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"福田 祐仁","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656052","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"コーガ ジェームズ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656053","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"桐山 博光","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656054","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"近藤 公伯","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656055","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"河内 哲哉","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656056","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神門 正城","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"656057","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 object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Relativistic plasma singularity and its coherent x-ray emission control using density jump","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Relativistic plasma singularity and its coherent x-ray emission control using density jump"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-03-26"},"publish_date":"2018-03-26","publish_status":"0","recid":"66713","relation_version_is_last":true,"title":["Relativistic plasma singularity and its coherent x-ray emission control using density jump"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:45:49.602368+00:00"}