Presentation 2010-12-17
Contribution of electron-Cooper-pair to the radiative recombination process in superconducting light emitting diode
Hirotaka SASAKURA, Kazunori TANAKA, Jae-Hoon HUH, Tatsushi AKAZAKI, Hidekazu KUMANO, Ikuo SUEMUNE,
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Abstract(in English) We experimentally demonstrate Cooper-pair's drastic enhancement of band-to-band radiative recombination rate in a semiconductor. Electron Cooper-pairs injected from a superconducting electrode into an active layer by the proximity effect recombine with holes injected from a p-type electrode. The recombination of a Cooper-pair with p-type carriers dramatically increases the photon generation probability of a light emitting diode in the optical-fiber communication band. The measured radiative recombination lifetime rapidly decreases with decreasing temperature below the superconducting transition temperature of niobium electrodes. Our results indicate the possibility to open up new interdisciplinary fields between superconductivity and optoelectronics.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Cooper-pair / Light emitting diode
Paper # LQE2010-122
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Committee LQE
Conference Date 2010/12/10(1days)
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Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Contribution of electron-Cooper-pair to the radiative recombination process in superconducting light emitting diode
Sub Title (in English)
Keyword(1) Cooper-pair
Keyword(2) Light emitting diode
1st Author's Name Hirotaka SASAKURA
1st Author's Affiliation Research Institute for Electronic Science, Hokkaido University()
2nd Author's Name Kazunori TANAKA
2nd Author's Affiliation Central Research Laboratory
3rd Author's Name Jae-Hoon HUH
3rd Author's Affiliation Research Institute for Electronic Science, Hokkaido University
4th Author's Name Tatsushi AKAZAKI
4th Author's Affiliation NTT Basic Research Laboratory
5th Author's Name Hidekazu KUMANO
5th Author's Affiliation Research Institute for Electronic Science, Hokkaido University
6th Author's Name Ikuo SUEMUNE
6th Author's Affiliation Research Institute for Electronic Science, Hokkaido University
Date 2010-12-17
Paper # LQE2010-122
Volume (vol) vol.110
Number (no) 353
Page pp.pp.-
#Pages 4
Date of Issue