Vacuum Bloch-Siegert Shift in Cyclotron Resonance

Bamba, Motoaki; Li, Xinwei; Kono, Junichiro

doi:info:doi/10.1109/IRMMW-THz.2018.8510512

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タイトル	Vacuum Bloch-Siegert Shift in Cyclotron Resonance
著者	Bamba, Motoaki Bamba, Motoaki
	Li, Xinwei Li, Xinwei
	Kono, Junichiro Kono, Junichiro
内容	M. Bamba, X. Li and J. Kono, "Vacuum Bloch-Siegert Shift in Cyclotron Resonance," 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Nagoya, 2018, pp. 1-3.
抄録	In a two-dimensional electron gas (2DEG) inside a terahertz (THz) cavity in a perpendicular magnetic field, we observed a clear resonance-frequency shift originating from the counter-rotating coupling between the electrons' cyclotron resonance and THz cavity modes. This shift can be understood as a vacuum Bloch-Siegert shift, arising from the ultrastrong counter-rotating coupling between the cyclotron-orbiting 2DEG and the vacuum fluctuations of the THz cavity modes. While such a shift has been difficult to observe clearly and is usually neglected under the rotating-wave approximation, here an unambiguous observation was made possible by the broken time-reversal symmetry of the 2DEG in a magnetic field and the use of an ultrahigh-mobility 2DEG, a high-quality-factor cavity, and circularly polarized THz radiation.
公開者	IEEE
開始ページ	1
終了ページ	3
刊行年月	2018-09-13
DOI	info:doi/10.1109/IRMMW-THz.2018.8510512
URL	http://hdl.handle.net/11094/70651
権利情報	© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
言語	英語
カテゴリ	会議発表論文 Conference Paper

著者版フラグ	author
NII資源タイプ	会議発表論文
ローカル資源タイプ	会議発表論文
DC.title	Vacuum Bloch-Siegert Shift in Cyclotron Resonance
DC.creator	Bamba, Motoaki
	Li, Xinwei
	Kono, Junichiro
DC.publisher	IEEE
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2018-09-13
DC.identifier	info:doi/10.1109/IRMMW-THz.2018.8510512
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/70651
DC.description	M. Bamba, X. Li and J. Kono, "Vacuum Bloch-Siegert Shift in Cyclotron Resonance," 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Nagoya, 2018, pp. 1-3.
DCTERMS.abstract	In a two-dimensional electron gas (2DEG) inside a terahertz (THz) cavity in a perpendicular magnetic field, we observed a clear resonance-frequency shift originating from the counter-rotating coupling between the electrons' cyclotron resonance and THz cavity modes. This shift can be understood as a vacuum Bloch-Siegert shift, arising from the ultrastrong counter-rotating coupling between the cyclotron-orbiting 2DEG and the vacuum fluctuations of the THz cavity modes. While such a shift has been difficult to observe clearly and is usually neglected under the rotating-wave approximation, here an unambiguous observation was made possible by the broken time-reversal symmetry of the 2DEG in a magnetic field and the use of an ultrahigh-mobility 2DEG, a high-quality-factor cavity, and circularly polarized THz radiation.
DC.rights	© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
citation_title	Vacuum Bloch-Siegert Shift in Cyclotron Resonance
citation_author	Bamba, Motoaki
	Li, Xinwei
	Kono, Junichiro
citation_publisher	IEEE
citation_language	英語
citation_date	2018-09-13
citation_firstpage	1
citation_lastpage	3
citation_doi	info:doi/10.1109/IRMMW-THz.2018.8510512
citation_public_url	http://hdl.handle.net/11094/70651

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