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

共 19 条

[11]

2-4

[12] Control of efficiency of photon energy up-conversion in CdSe/ZnS quantum dots [J].

Rusakov, KI ;

Gladyshchuk, AA ;

Rakovich, YP ;

Donegan, JF ;

Filonovich, SA ;

Gomes, MJM ;

Talapin, DV ;

Rogach, AL ;

Eychmüller, A .

OPTICS AND SPECTROSCOPY, 2003, 94 (06) :859-863

[13] HIGH-RESOLUTION SPECTROSCOPY OF WHISPERING GALLERY MODES IN LARGE DIELECTRIC SPHERES [J].

SCHILLER, S ;

BYER, RL .

OPTICS LETTERS, 1991, 16 (15) :1138-1140

[14] Enhanced coupling to microsphere resonances with optical fibers [J].

Serpenguzel, A ;

Arnold, S ;

Griffel, G ;

Lock, JA .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1997, 14 (04) :790-795

[15] Ultralow-threshold Raman laser using a spherical dielectric microcavity [J].

Spillane, SM ;

Kippenberg, TJ ;

Vahala, KJ .

NATURE, 2002, 415 (6872) :621-623

[16] Formation of luminescent spherical core-shell particles by the consecutive adsorption of polyelectrolyte and CdTe(S) nanocrystals on latex colloids [J].

Susha, AS ;

Caruso, F ;

Rogach, AL ;

Sukhorukov, GB ;

Kornowski, A ;

Möhwald, H ;

Giersig, M ;

Eychmüller, A ;

Weller, H .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2000, 163 (01) :39-44

[17] Optical microcavities [J].

Vahala, KJ .

NATURE, 2003, 424 (6950) :839-846

[18] Raman spectroscopy of polymer latexes [J].

van den Brink, M ;

Pepers, M ;

van Herk, AM .

JOURNAL OF RAMAN SPECTROSCOPY, 2002, 33 (04) :264-272

[19] Photoluminescence upconversion in colloidal CdTe quantum dots [J].

Wang, XY ;

Yu, WW ;

Zhang, JY ;

Aldana, J ;

Peng, XG ;

Xiao, M .

PHYSICAL REVIEW B, 2003, 68 (12)

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