Whispering gallery mode emission from a composite system of CdTe nanocrystals and a spherical microcavity

被引:68
作者
Rakovich, YP [1 ]
Yang, L
McCabe, EM
Donegan, JF
Perova, T
Moore, A
Gaponik, N
Rogach, A
机构
[1] Trinity Coll Dublin, Dept Phys, Semicond Photon Grp, Dublin 2, Ireland
[2] Trinity Coll Dublin, Dept Elect & Elect Engn, Dublin, Ireland
[3] Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany
[4] Univ Munich, Dept Phys, Photon & Optoelect Grp, D-80799 Munich, Germany
[5] Univ Munich, CENS, D-80799 Munich, Germany
关键词
D O I
10.1088/0268-1242/18/11/302
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We have studied the optical properties of a novel quantum dot-microcavity system consisting of CdTe nanocrystals attached to a melamine formaldehyde latex microsphere. The spheres were studied using conventional and confocal microscopy, the confocal. system revealed defects in some spheres. The coupling between the emission of the nanocrystals and the spherical cavity modes was realized. Periodic very narrow peaks of the emission spectra corresponding to the whispering gallery modes were detected with strong emission into selected modes at a high pump intensity.
引用
收藏
页码:914 / 918
页数:5
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