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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.
Sum frequency data are reported from the nonlinear interaction of two coherently excited resonant modes of a two-dimensional planar photonic crystal microcavity patterned in a free-standing InP slab.
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 report high-performance single-frequency operation of a directly diode pumped GaSb vertical-external-cavity surface-emitting laser (VECSEL) at 2.3 mum. Tunability of >25 nm with a maximum single frequency output of 0.68 W is demonstrated.
We report GHz modulation of bipolar cascade VCSELs. The VCSELs incorporate a reverse-biased tunnel junction and p-doped oxide aperture for each triple-quantum well active region. These devices exhibit frequency responses greater than 4 GHz.
We report lasing of optically pumped Ga(AsNP)/GaP multiple quantum-well structures grown pseudomorphically on GaP substrate. A distinct threshold behaviour is observed at both cryogenic and room temperature; modal gain of up to 20 cm-1 is determined.
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.
We report cavity-enhanced second-harmonic generation from a tightly confining non-linear optical device for optical frequency conversion, which employs a novel waveguide-embedded dichroic mirror, highly reflective at the fundamental wavelength and transmissive at the second harmonic.
Lasing behavior under optical pumping conditions is reported for photonic crystal double-heterostructure nanocavities with InAs quantum dot active regions. Coupling of this laser emission into a photonic crystal waveguide is also reported.
We design efficient photonic crystal (PC) cavity-waveguide couplers using the Fourier-space optimization. This system is a fundamental building block for integrated photonic circuits with direct applications in quantum information processing.
An optically-pumped VECSEL based on AlGaInP produced >1W continuous-wave output power at 675 nm and wavelength tuning over 16 nm. Intra-cavity second-harmonic generation was achieved in beta-barium borate to produce 60 mW at 337 nm in two output beams.
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.
Electrically pulsed GaInNAsSb-based, vertical cavity surface emitting lasers (VCSELs) at 1534 nm are reported. The lasers operated below -25C due to a gain-cavity misalignment. These are the first monolithic, C-band VCSELs on GaAs.
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.
We demonstrate an efficient source of nearly indistinguishable single photons from an InAs quantum dot coupled to a photonic crystal microcavity. This QD-cavity coupled system has applications in quantum information science.
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