Polarization degenerate micropillars fabricated by designing elliptical oxide apertures

Abstract

A method for fabrication of polarization degenerate oxide apertured micropillar cavities is demon- strated. Micropillars are etched such that the size and shape of the oxide front is controlled. The polarization splitting in the circular micropillar cavities due to the native and strain induced bire- fringence can be compensated by elongating the oxide front in the [110] direction, thereby reducing stress in this direction. By using this technique we fabricate a polarization degenerate cavity with a quality factor of 1.7*?10^4 and a mode volume of 2.7 u?m3, enabling a calculated maximum Purcell factor of 11.

arXiv comment4 pages, 4 figures

References in corpus (5)

• CNOT and Bell-state analysis in the weak-coupling cavity QED regime
• Externally mode-matched cavity quantum electrodynamics with charge-tunable quantum dots
• Tuning micropillar cavity birefringence by laser induced surface defects
• Optical modes in oxide-apertured micropillar cavities
• Monitoring the formation of oxide apertures in micropillar cavities

Cited by in corpus (5)

• A fiber coupled cavity QED source of identical single photons
• A single quantum dot as an optical thermometer for mK temperatures
• Purification of a single photon nonlinearity
• Implementing two-photon three-degree-of-freedom hyper-parallel controlled phase flip gate through cavity-assisted interactions
• Electro-optic polarization tuning of microcavities with a single quantum dot