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We report on strong coupling between a discrete optical mode of a high-Q micropillar cavity and single excitons of self assembled In0.43Ga0.57As quantum dots and compare the results with previous studies on In0.3Ga0.7As quantum dots.
Optical characterization of a novel type of semiconductor microcavity based on a fully-buried, all-epitaxial design reveals many properties essential for a manufacturable technology. We demonstrate detailed mode-imaging, lasing, as well as a sizeable Purcell effect.
We observed highly non-thermal features from the photoluminescence of InGaAs/GaAs quantum dots in a planar microcavity. The effect was interpreted in terms of the interplay of phonon relaxation and cavity-dependent excitonic radiative recombination.
We present microdisk terahertz (THz) quantum-cascade lasers (QCls) with diameters reduced down to less than the free-air emission wavelength and compare the measurement results with 3D finite-difference time-domain simulations.
We report the first realization of a monolithic vertical-cavity, surface emitting micro optical parametric conversion nanostructure, triply resonant with the parametric frequencies, allowing parametric oscillation or amplification with a very low pump power threshold.
Optical microcavity was fabricated in an AlGaAs-based photonic crystal slab. The optical resonance was within the communication wavelengths and had a quality factor of 1900. Optical bistability due to thermo-optic origin was observed.
We modulate cavity-polaritons using surface acoustic waves. The corresponding formation of a mini-Brillouin zone and band folding of the polariton dispersion is demonstrated for the first time. Results are in good agreement with model calculations.
We use the finite difference time domain method (FDTD) to investigate polarisation control of single-photon emission from single quantum dots confined in elliptical micro-pillar microcavities. In contrast to circular pillars, one of the cavity modes has smaller modal volume and maintains high Q-factor.
Side-coupled-integrated-spaced-sequence-of-resonators (SCISSORs) with many rings are important for controlling the behavior of light propagation. We show the linear performance of SCISSORs in high index-contrast AlGaAs in 1, 2, 4, and 8 ring configurations.
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