Imaging single quantum dots in three-dimensional photonic crystals

被引：41

作者：

Barth, Michael ^{[1
]}

Schuster, Roman ^{[1
]}

Gruber, Achim ^{[1
]}

Cichos, Frank ^{[1
]}

机构：

[1] Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.96.243902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Performing fluorescence wide-field microscopy we have imaged single semiconductor quantum dots deep inside a 3-dimensional photonic crystal prepared from colloidal polymer beads. Exploring the emission diffraction patterns in defocused images of quantum dots we demonstrate that the direction-dependent photonic stop band imprints an anisotropy to the angular emission of a single quantum dot. Hence a single, quasi-point-like emitter is manipulated to radiate its photons only to certain well-defined directions by means of the anisotropic light propagation in photonic crystals. The experiments thus provide new routes to evaluate local, frequency selective optical properties in 3-dimensional photonic crystals employing single emitters.

引用

页数：4

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