Raman scattering and Anti-Stokes emission from a single spherical microcavity with a CdTe quantum dot monolayer
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Citation:Y.P. Rakovich, J.F. Donegan, N. Gaponik, A.L. Rogach `Raman scattering and Anti-Stokes emission from a single spherical microcavity with a CdTe quantum dot monolayer? in Applied Physics Letters, 83, (13), 2003, pp 2539 - 2541
We have studied the Raman and luminescence spectra of a microcavity?quantum dot system consisting of a melamine formaldehyde 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 luminescence spectra of a single microsphere was detected arising from the coupling between the emission from quantum dots and spherical cavity modes. Strong anti-Stokes emission from CdTe quantum dots coupled to the cavity modes was observed using low intensity below band-gap excitation and attributed to the strong field enhancement at the microcavity resonances.
Science Foundation Ireland
Publisher:American Institute of Physics
Series/Report no:Applied Physics Letters