Observation of enhanced luminescence emitted from InAs quantum dots with direct contact to superconducting niobium stripe

Idutsu, Yasuhiro; Takada, Makoto; Hayashi, Yujiro; Akazaki, Tatsushi; Kumano, Hidekazu; Suemune, Ikuo

Observation of enhanced luminescence emitted from InAs quantum dots with direct contact to superconducting niobium stripe

Idutsu, Yasuhiro; Takada, Makoto; Hayashi, Yujiro et al.

Physica Status Solidi C Conferences, 2009, 6(4), 849-852

Permalink : https://hdl.handle.net/2115/45361

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アクセス権	open access
URI	https://hdl.handle.net/2115/45361
タイトル	Observation of enhanced luminescence emitted from InAs quantum dots with direct contact to superconducting niobium stripe
著者	Idutsu, Yasuhiro ; Takada, Makoto ; Hayashi, Yujiro ; Akazaki, Tatsushi ; Kumano, Hidekazu ; Suemune, Ikuo
著者名 Idutsu, Yasuhiro
著者名 Takada, Makoto
著者名 Hayashi, Yujiro
著者名 Akazaki, Tatsushi
e-Rad_Researcher 70292042 著者名 Kumano, Hidekazu
e-Rad_Researcher 00112178 著者名 Suemune, Ikuo
言語	英語
キーワード	74.90.+n
	78.55.Cr
	78.67.Hc
発行日	2009-04
出版者	Wiley-Blackwell
収録物名	Physica Status Solidi C Conferences
巻(号)	6(4)
ページ	849-852
抄録	Observation of drastically enhanced luminescence emitted from InAs quantum dots (QDs) which were in direct contact to superconducting Niobium (Nb) is reported. Although the PL intensity was essentially temperature independent without Nb stripe, drastic temperature dependence was observed with the presence of the Nb stripe. PL intensity was substantially increased below the Nb superconducting critical temperature (Tc). About 3-times enhancement was observed below Tc. This phenomenon is attributed to the Cooper pairs penetrated from the superconducting Nb stripe to adjacent InAs QDs by the proximity effect. This is the first experimental demonstration that the Cooper pairs enhance radiative recombination through QDs. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
資源タイプ	学術雑誌論文
出版タイプ	Submitted Manuscript Under Review
権利情報	This is the pre-peer reviewed version of the following article: physica status solidi (c)Volume 6, Issue 4, pages 849–852, April 2009, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/pssc.200880669/abstract.
PISSN	1862-6351
EISSN	1610-1642
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1002/pssc.200880669