Strongly suppressed multi‐photon generation from a single quantum dot in a metal‐embedded structure

Autor:	Hideaki Nakajima, Ikuo Suemune, Hidekazu Kumano, Sotaro Ida, Souta Miyamura, Yasuhiro Idutsu, Shingo Ekuni, Daimotsu Kato, Hirotaka Sasakura
Rok vydání:	2010
Předmět:	Photon Condensed matter physics business.industry Chemistry Structure (category theory) Condensed Matter Physics Semiconductor Correlation function Quantum dot Quantum dot laser Optoelectronics Quantum information business Excitation
Zdroj:	physica status solidi c. 8:337-339
ISSN:	1610-1642 1862-6351
DOI:	10.1002/pssc.201000519
Popis:	We introduce a novel metal-embedded semiconductor pillar structure including quantum dots as highly efficient single-photon sources for quantum information applications. We have developed related processes for fabricating the proposed structure and have demonstrated strongly suppressed multi-photon generation and improved photon extraction efficiency. As a result, under non-resonant excitation, which is highly preferable for practical use, single-photon purity with g(2)(0) as low as 0.015 has been measured. The extremely small semiconductor volume of the metal embedded structure is a crucial factor for this observation. Moreover, single-photon generation from a single quantum dot at a rate of up to 6.4 million per second has been achieved. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4444f3f264afbfaee9a495e7d0746aba https://doi.org/10.1002/pssc.201000519 Zobrazit plný text záznamu Plný text