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Integrated vertical microcavity using a nano-scale deformation for strong lateral confinement

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4847655· OSTI ID:22253799
We report on the realization of a solid state Fabry-Pérot-like microcavity that uses a small Gaussian-shaped deformation inside the cavity to achieve strong lateral photon confinement on the order of the wavelength. Cavities with a mode volume V < 0.4 μm{sup 3} and a quality factor Q > 1000 are fabricated by means of focused ion beam milling, removing the necessity for etched sidewalls as required for micropillar cavities. Perylene-diimide dye doped polystyrene was embedded in the microcavity and probed by time-resolved microphotoluminescence. A Purcell enhancement of the spontaneous emission rate by a factor of 3.5 has been observed at room temperature.
OSTI ID:
22253799
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 24 Vol. 103; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English

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