A Cooper pair light emitting diode
Other Condensed Matter
2013-07-05 v1 Superconductivity
Abstract
We demonstrate Cooper-pair's drastic enhancement effect on band-to-band radiative recombination 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 and dramatically accelerate the photon generation rates of a light emitting diode in the optical-fiber communication band. Cooper pairs are the condensation of electrons at a spin-singlet quantum state and this condensation leads to the observed enhancement of the electric-dipole transitions. Our results indicate the possibility to open up new interdisciplinary fields between superconductivity and optoelectronics.
Cite
@article{arxiv.0910.5161,
title = {A Cooper pair light emitting diode},
author = {H. Sasakura and S. Kuramitsu and Y. Hayashi and K. Tanaka and T. Akazaki and E. Hanamura and R. Inoue and H. Takayanagi and Y. Asano and I. Suemune},
journal= {arXiv preprint arXiv:0910.5161},
year = {2013}
}
Comments
5 pages (4 figures)