{"created":"2023-05-15T14:53:52.009144+00:00","id":73348,"links":{},"metadata":{"_buckets":{"deposit":"6430f59f-218f-4323-be44-a4cf303aa8ae"},"_deposit":{"created_by":1,"id":"73348","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"73348"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00073348","sets":["10:27"]},"author_link":["722609","722614","722612","722598","722599","722607","722601","722606","722608","722615","722602","722589","722592","722611","722595","722604","722593","722586","722590","722597","722605","722613","722591","722594","722610","722588","722603","722600","722596","722587"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2018-04-24","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 particular case of Burst Intensification by Singularity Emitting Radiation (BISER) [4].\nIn previous experiments, BISER occurred spontaneously, after the relativistic self-focusing, resulting in a relatively large fluctuations of the x-ray source position and low overall stability. Basing on simulations with the 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, low-jitter x-ray source 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.\nWe thank the J-KAREN-P laser operation group. We acknowledge the financial support from JSPS Kakenhi JP 25390135 and JP 26707031.\n\\n[1]A. S. Pirozhkov, M. Kando, T. Zh. Esirkepov, P. Gallegos, H. Ahmed, E. N. Ragozin, A. Ya. Faenov, et al., \"Soft-X-Ray Harmonic Comb from Relativistic Electron Spikes,\" Phys. Rev. Lett. 108, 135004-5, (2012).\n[2]A. Pirozhkov et al., \"High order harmonics from relativistic electron spikes,\" New J. Phys. 16, 093003-30 (2014).\n[3]T. Zh. Esirkepov, Y. Kato, and S. V. Bulanov, \"Bow Wave from Ultraintense Electromagnetic Pulses in Plasmas,\" Phys. Rev. Lett. 101, 265001-4 (2008).\n[4]A. S. Pirozhkov, T. Zh. Esirkepov, T. A. Pikuz, A. Ya. Faenov, K. Ogura, Y. Hayashi, H. Kotaki, et al., \"Burst intensification by singularity emitting radiation in multi-stream flows,\" Scientific Reports (accepted).\n[5]T. Zh. Esirkepov, \"Exact charge conservation scheme for Particle-in-Cell simulation with an arbitrary form-factor,\" Comput. Phys. Comm. 135, 144-153 (2001).\n[6]H. Kiriyama, M. Mori, A. S. Pirozhkov, K. Ogura, A. Sagisaka, A. Kon., et al., \"High-Contrast, High-Intensity Petawatt-Class Laser and Applications,\" IEEE J.S.T.Quantum Electron. 21, 1601118-18 (2015).\n[7]A. S. Pirozhkov, Y. Fukuda, M. Nishiuchi, H. Kiriyama, A. Sagisaka, K. Ogura, M. Mori, M. Kishimoto, et al., \"Approaching the diffraction-limited, bandwidth-limited Petawatt,\" 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":"OPIC-2018 (HEDS-2018)","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":"722586","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"エシロケポフ, ティムル"}],"nameIdentifiers":[{"nameIdentifier":"722587","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"匂坂, 明人"}],"nameIdentifiers":[{"nameIdentifier":"722588","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小倉, 浩一"}],"nameIdentifiers":[{"nameIdentifier":"722589","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中新, 信彦"}],"nameIdentifiers":[{"nameIdentifier":"722590","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"黄, 開"}],"nameIdentifiers":[{"nameIdentifier":"722591","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"A, Pikuz T"}],"nameIdentifiers":[{"nameIdentifier":"722592","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ya, Faenov A"}],"nameIdentifiers":[{"nameIdentifier":"722593","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"難波, 愼一"}],"nameIdentifiers":[{"nameIdentifier":"722594","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"大東, 出"}],"nameIdentifiers":[{"nameIdentifier":"722595","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"福田, 祐仁"}],"nameIdentifiers":[{"nameIdentifier":"722596","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"コーガ, ジェームズ"}],"nameIdentifiers":[{"nameIdentifier":"722597","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"桐山, 博光"}],"nameIdentifiers":[{"nameIdentifier":"722598","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"近藤, 公伯"}],"nameIdentifiers":[{"nameIdentifier":"722599","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"河内, 哲哉"}],"nameIdentifiers":[{"nameIdentifier":"722600","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神門, 正城"}],"nameIdentifiers":[{"nameIdentifier":"722601","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ピロジコフ アレキサンダー","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722602","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"エシロケポフ ティムル","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722603","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"匂坂 明人","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722604","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小倉 浩一","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722605","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中新 信彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722606","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"黄 開","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722607","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"難波 愼一","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722608","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"大東 出","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722609","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"福田 祐仁","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722610","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"コーガ ジェームズ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722611","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"桐山 博光","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722612","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"近藤 公伯","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722613","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"河内 哲哉","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722614","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神門 正城","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"722615","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":"Control of Burst Intensification by Singularity Emitting Radiation (BISER) with density jump","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Control of Burst Intensification by Singularity Emitting Radiation (BISER) with density jump"}]},"item_type_id":"10005","owner":"1","path":["27"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-12-19"},"publish_date":"2018-12-19","publish_status":"0","recid":"73348","relation_version_is_last":true,"title":["Control of Burst Intensification by Singularity Emitting Radiation (BISER) with density jump"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:30:18.143909+00:00"}