2 papers
cond-mat.other2009
A Cooper pair light emitting diode
H. Sasakura, S. Kuramitsu, Y. Hayashi +7
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…
cond-mat.mtrl-sci2008
Optical-phonon mediated exciton energy relaxation with highly preserved spin states Optical-phonon mediated exciton energy relaxation with highly preserved spin states in a single quantum dot
H. Kumano, H. Kobayashi, S. Ekuni +6
High degree of preservation of spin states during energy relaxation processes mediated by optical phonons is demonstrated in a single quantum dot. Optical-phonon resonance and rele…