High performance single photon sources from photolithographically defined pillar microcavities

被引：57

作者：

Bennett, AJ

Unitt, DC

Atkinson, P

Ritchie, DA

Shields, AJ

机构：

[1] Toshiba Res Europe Ltd, Cambridge Res Lab, Cambridge CB4 0WE, England

[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

OPTICS EXPRESS | 2005年 / 13卷 / 01期

关键词：

D O I：

10.1364/OPEX.13.000050

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate that single photons can be generated from single InAs/GaAs quantum dots in photolithographically defined pillar microcavities. Pillars with a 1.9 mum diameter cavity show a four fold enhancement in the radiative decay rate due to the Purcell effect and a photon collection efficiency into a lens of up to 10%. Measurements of the second order correlation function reveal a greater than fifty fold reduction in the multi-photon emission rate compared to a laser of the same intensity. (C) 2005 Optical Society of America.

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页码：50 / 55

页数：6

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