Heralded single photons from a single quantum dot

Author

Becher, Christoph ; Kiraz, A. ; Michler, P. ; Schoenfeld, W.V. ; Petroff, Pierre M. ; Lidong Zhang ; Hu, E. ; Iamoglu, A.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA

fYear

2001

fDate

11-11 May 2001

Firstpage

185

Lastpage

186

Abstract

Summary form only given. A deterministic single photon source emitting triggered (heralded) photons on demand, also termed single photon turnstile device, is one of the key elements in the emerging field of quantum information science. We present a single photon source based on pulsed laser excitation of a single self-assembled InAs quantum dot (QD) embedded in a high quality (Q) factor microcavity structure. Regulation of the photon emission process of the QD exciton ground state (1X) transition is accomplished by a combination of two effects: Coulomb interactions creating an anharmonic multiexciton spectrum and a slow relaxation of highly excited QDs leading to vanishing re-excitation probability following the photon emission event at the 1X transition.

Keywords

III-V semiconductors; excitons; indium compounds; optical pumping; optical resonators; photoluminescence; quantum cryptography; quantum optics; semiconductor quantum dots; 1X transition; Coulomb interactions; InAs; Purcell effect; coupled system; deterministic single photon source; exciton ground state transition; harmonic multiexciton spectrum; heralded single photons; high quality factor microcavity; microdisk mode; optical pumping; photon correlation; pulsed laser excitation; quantum information science; self-assembled quantum dot; single photon turnstile device; single quantum dot; slow relaxation; spatially resolved photoluminescence; temperature tuning; triggered photons on demand; vanishing re-excitation probability; Excitons; Information science; Laser excitation; Laser theory; Laser transitions; Microcavities; Optical pulses; Photonics; Quantum dot lasers; Quantum dots;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2001. QELS '01. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-663-X

Type

conf

DOI

10.1109/QELS.2001.962044

Filename

962044