Fiber-connectorized micropillar cavities

Optical modes in oxide-apertured micropillar cavities.

We present a detailed experimental characterization of the spectral and spatial structure of the confined optical modes for oxide-apertured micropillar cavities, showing good-quality Hermite-Gaussian profiles, easily mode-matched to external fields. We further derive a relation between the frequency splitting of the transverse modes and the expected Purcell factor. Finally, we describe a techni...

Polariton laser using single micropillar GaAs-GaAlAs semiconductor cavities.

Polariton lasing is demonstrated on the zero-dimensional states of single GaAs/GaAlAs micropillar cavities. Under nonresonant excitation, the measured polariton ground-state occupancy is found as large as 10(4). Changing the spatial excitation conditions, competition between several polariton lasing modes is observed, ruling out Bose-Einstein condensation. When the polariton state occupancy inc...

Oscillatory variations in the Q factors of high quality micropillar cavities

Submicrometer diameter micropillar cavities with high quality factor and ultrasmall mode volume.

We theoretically demonstrate high quality factor (Q approximately 3x10(6)) micropillar cavities with a record low mode volume [V approximately 0.1(lambda/n)3] based on the TiO2/SiO2 material system. The proposed cavities have Q/V that is 3 orders of magnitude larger than previously reported ones. We show that our cavity embedded with a diamond nanocrystal provides a feasible platform for cavity...

Sub-micron diameter micropillar cavities with high Quality factors and ultra-small mode volumes

We theoretically demonstrate high Quality factor (Q~3×10 6 ) micropillar cavities with record low mode volumes [V~0.1(λ/n) 3 ] based on the TiO2/SiO2 material system. The proposed cavities have Q/V three orders of magnitude larger than previously reported ones. We show that our cavity embedded with diamond nanocrystal provides a feasible platform for cavity quantum electrodynamics experiments i...