Suppression of multi-photon emission in 1.5-µm quantum-dot single-photon source

Author

Miyazawa, Takaya ; Takemoto, Kazuya ; Sakuma, Yasushi ; Haizhi Song ; Takatsu, Masaru ; Yamamoto, Takayuki ; Arakawa, Yasuhiko

Author_Institution

Fujitsu Labs. Ltd., Atsugi, Japan

fYear

2013

fDate

19-23 May 2013

Firstpage

1

Lastpage

2

Abstract

Photon-correlation function g⁽²⁾(τ) of a single `doublecapped´ InAs/InP quantum dot (QD) was obtained with high accuracy using a superconducting single-photon detector (SSPD). By using resonant excitation to the e₁h₀ state in the single InAs/InP QD, g⁽²⁾(0) was decreased to the detection limit. Rabi oscillation of the PL intensity of e₀h₀ state is also observed under the resonant excitation into the e₁h₀ state. These results suggest that the coherent exciton generation into e₁h₀ state is effective to improve the purity of the single-photon emission.

Keywords

III-V semiconductors; excitons; indium compounds; multiphoton processes; photoemission; photoluminescence; semiconductor quantum dots; spectral line intensity; superconducting photodetectors; InAs-InP; PL intensity; Rabi oscillation; SSPD; coherent exciton generation; detection limit; e₁h₀ state; multiphoton emission; photon-correlation function; quantum-dot single-photon source; resonant excitation; single double-capped quantum dot; single-photon emission; superconducting single-photon detector; wavelength 1.5 mum; Excitons; Indium phosphide; Measurement by laser beam; Oscillators; Photonics; Quantum dots; Wavelength measurement; Rabi oscillation; g⁽²⁾(0); quantum dot; quasi-resonant excitation; single-photon source;

fLanguage

English

Publisher

ieee

Conference_Titel

Indium Phosphide and Related Materials (IPRM), 2013 International Conference on

Conference_Location

Kobe

ISSN

1092-8669

Print_ISBN

978-1-4673-6130-9

Electronic_ISBN

1092-8669

Type

conf

DOI

10.1109/ICIPRM.2013.6562564

Filename

6562564