Title :
Electrically driven single quantum dot polarised single photon emitter
Author :
Lochmann, A. ; Stock, E. ; Schulz, O. ; Hopfer, F. ; Bimberg, D. ; Haisler, V.A. ; Toropov, A.I. ; Bakarov, A.K. ; Kalagin, A.K.
Author_Institution :
Inst. fur Festkorperphys., Tech. Univ. Berlin, Germany
fDate :
6/22/2006 12:00:00 AM
Abstract :
A report is presented of a subminiature solid-state emitter structure, which allows electrical pumping of only one single InAs quantum dot (QD) grown in the Stranski-Krastanow mode. The emitter demonstrates a strongly monochromatic polarised emission of a single QD exciton. No other emission is observed across 500 nm. The structure is thus attractive for practical implementation as an effective single photon source for quantum cryptography.
Keywords :
III-V semiconductors; excitons; indium compounds; optical pumping; photons; quantum cryptography; semiconductor quantum dots; InAs; Stranski-Krastanow mode; electrical pumping; monochromatic polarised emission; photon source; quantum cryptography; quantum dot polarised single photon emitter; single QD exciton; solid-state emitter structure;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20061076
