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

Journal Article · Mon Dec 09 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4847655· OSTI ID:22253799

Mai, Lijian; Ding, Fei; Stöferle, Thilo; Knoll, Armin

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, Vol. 103, Issue 24; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
DEFORMATION
DOPED MATERIALS
ION BEAMS
MILLING
PERYLENE
PHOTOLUMINESCENCE
PHOTONS
POLYSTYRENE
QUALITY FACTOR
SOLIDS
TEMPERATURE RANGE 0273-0400 K
TIME RESOLUTION