Whispering gallery modes in photoluminescence and Raman spectra of a spherical microcavity with CdTe quantum dots: anti-Stokes emission and interference effects

被引：12

作者：

Gaponik, Nikolai ^{[2
]}

Rakovich, Yury P. ^{[1
]}

Gerlach, Matthias ^{[1
]}

Donegan, John F. ^{[1
]}

Savateeva, Diana ^{[3
]}

Rogach, Andrey L. ^{[4
,5
]}

机构：

[1] Univ Dublin Trinity Coll, Semicond Photon Grp, Sch Phys, Dublin 2, Ireland

[2] Tech Univ Dresden, D-01062 Dresden, Germany

[3] Brest State Tech Univ, Brest 224017, BELARUS

[4] Univ Munich, Dept Phys, D-80799 Munich, Germany

[5] Univ Munich, CeNS, D-80799 Munich, Germany

来源：

NANOSCALE RESEARCH LETTERS | 2006年 / 1卷 / 01期

基金：

爱尔兰科学基金会;

关键词：

microcavity; nanocrystals; quantum dots; Raman spectroscopy; anti-Stokes emission;

D O I：

10.1007/s11671-006-9005-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have studied the photoluminescence and Raman spectra of a system consisting of a polystyrene latex microsphere coated by CdTe colloidal quantum dots. The cavity-induced enhancement of the Raman scattering allows the observation of Raman spectra from only a monolayer of CdTe quantum dots. Periodic structure with very narrow peaks in the photoluminescence spectra of a single microsphere was detected both in the Stokes and anti-Stokes spectral regions, arising from the coupling between the emission of quantum dots and spherical cavity modes.

引用

页码：68 / 73

页数：6

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