蛋白石光子晶体中金刚石纳米晶体的单光子发射

Single photon emission from diamond nanocrystals in an opal photonic crystal.

作者信息

Stewart L A, Zhai Y, Dawes J M, Steel M J, Rabeau J R, Withford M J

机构信息

MQ Photonics Research Centre and Department of Physics and Engineering, Macquarie University, North Ryde, NSW 2109, Australia.

出版信息

Opt Express. 2009 Sep 28;17(20):18044-53. doi: 10.1364/OE.17.018044.

DOI:10.1364/OE.17.018044

PMID:19907594

Abstract

We present the first optical measurement of a single nitrogen-vacancy (NV) center in a three-dimensional photonic crystal. The photonic crystal, fabricated by self-assembly of polystyrene microspheres, exhibits a photonic stopband that overlaps the NV photoluminescence spectrum. A modified emission spectrum and photon antibunching were measured from the NV centers. Time-resolved fluorescence measurements revealed a 30% increase in the source lifetime. Encapsulation of single NV centers in a three-dimensional photonic crystal is a step towards controlling emission properties of a single photon source.

摘要

我们展示了对三维光子晶体中单个氮空位（NV）中心的首次光学测量。该光子晶体由聚苯乙烯微球自组装制成，呈现出与NV光致发光光谱重叠的光子禁带。从NV中心测量到了修正的发射光谱和光子反聚束现象。时间分辨荧光测量显示源寿命增加了30%。将单个NV中心封装在三维光子晶体中是朝着控制单光子源发射特性迈出的一步。