Title :
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
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;
Conference_Titel :
Indium Phosphide and Related Materials (IPRM), 2013 International Conference on
Conference_Location :
Kobe
Print_ISBN :
978-1-4673-6130-9
Electronic_ISBN :
1092-8669
DOI :
10.1109/ICIPRM.2013.6562564
