Optical characterization and selective addressing of the resonant modes of a micropillar cavity with a white light beam

Abstract

We have performed white-light reflectivity measurements on GaAs/AlAs micropillar cavities with diameters ranging from 1 μm up to 20 μm. We are able to resolve the spatial field distribution of each cavity mode in real space by scanning a small-sized beam across the top facet of each micropillar. We spectrally resolve distinct transverse optical cavity modes in reflectivity. Using this procedure we can selectively address a single mode in the multimode micropillar cavity. Calculations for the coupling efficiency of a small-diameter beam to each mode are in very good agreement with our reflectivity measurements.

arXiv comment7 pages, 8 figures

References in corpus (2)

• Dynamic release of trapped light from an ultrahigh-Q nanocavity via adiabatic frequency tuning
• What is measured in a photoluminescence experiment on Quantum dots embedded in a large Purcell factor microcavity?

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• High spectral resolution of GaAs/AlAs phononic cavities by subharmonic resonant pump-probe excitation
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• Monitoring the formation of oxide apertures in micropillar cavities
• Adiabatic theory of one-dimensional curved polariton waveguides