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Three-dimensional photon confinement in a spherical microcavity with CdTe quantum dots: Raman spectroscopy |
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| Authors: | YuP Rakovich M Gerlach JF Donegan N Gaponik AL Rogach |
| Institution: | aSemiconductor Photonics Group, Department of Physics, Trinity College, Dublin 2, Ireland;bInstitute of Physical Chemistry, University of Hamburg, 20146 Hamburg, Germany;cDepartment of Physics and CeNS, Ludwig-Maximilians-Universität München, 80799 Munich, Germany |
| Abstract: | We have studied the 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 one CdTe monolayer. Periodic structure with very narrow peaks in the Raman spectra of a single microsphere was detected both in Stokes and anti-Stokes spectral regions, arising from the coupling between the emission from quantum dots and spherical cavity modes. |
| Keywords: | Raman scattering Spherical microcavity Nanocrystals |
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