Cavity-quantum electrodynamics using a single InAs quantum dot in a microdisk structure

Citation
A. Kiraz et al., Cavity-quantum electrodynamics using a single InAs quantum dot in a microdisk structure, APPL PHYS L, 78(25), 2001, pp. 3932-3934
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
78
Issue
25
Year of publication
2001
Pages
3932 - 3934
Database
ISI
SICI code
0003-6951(20010618)78:25<3932:CEUASI>2.0.ZU;2-P
Abstract
We investigate cavity-quantum electrodynamics (QED) effects in an all-semic onductor nanostructure by tuning a single self-assembled InAs quantum dot ( QD) into resonance with a high quality factor microdisk whispering gallery mode (WGM). The stronger temperature dependence of the QD single-exciton (1 X) resonance allows us to change the relative energy of the WGM and the 1X transitions by varying the sample temperature. The two coupled resonances e xhibit crossing behavior due to the weak coupling cavity-QED regime. We dem onstrate exciton lifetime reduction by 6 due to the Purcell effect by tunin g the QD into resonance with the WGM. Our experiments also show that single -exciton lifetime is independent of temperature up to 50 K. (C) 2001 Americ an Institute of Physics.