Mode control by nanoengineering light emitters in spherical microcavities

Moller, B.; Woggon, U.; Artemyev, M.V.; Wannemacher, R.
September 2003
Applied Physics Letters;9/29/2003, Vol. 83 Issue 13, p2686
Academic Journal
Quantum-confined semiconductor nanorods are used as highly polarized nanoemitters to actively control the polarization state of microcavity photons. A wet-chemical method to tangentially align CdSe nanorods on a polymer surface is applied to a spherical R≈2λ-microcavity. The cavity emission is studied by imaging spectroscopy and polarization-sensitive mode mapping. The efficient confinement of photons spontaneously emitted by nanorods into single transverse electric (TE) cavity modes is achieved while transverse magnetic modes are suppressed. A microscopic tricolor TE-emitter operating at room temperature in the visible spectral range is demonstrated. © 2003 American Institute of Physics.


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