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We experimentally demonstrate mid-infrared difference frequency generation in suspended 181-nmthick GaAs waveguides. The extreme form-birefringence in the nanoslab waveguide enables phase-matching between the CW signal (1550 nm), pump (1025 nm), and idler (3000 nm).
We demonstrate enhanced electro-optic phase shifts in suspended InGaAs/InGaAsP quantum well rib waveguides compared to substrate-attached waveguides. The tighter mode confinement results in Vpi L coefficients as low as 0.41 V cm.
We demonstrate enhanced electro-optic phase shifts in suspended InGaAs/InGaAsP quantum well waveguides compared to attached waveguides. The enhancement stems from tightened mode confinement between the electrodes, and should improve further with thinner waveguides.
We have used surface micromachining to fabricate suspended InGaAs quantum well waveguides that are supported by lateral tethers. Their enhanced electro-optical and nonlinear-optical properties will be discussed.
Summary form only given. Recent studies have been carried out on the resonant response from single interface fluctuation quantum dots. Such a discrete-level model yields unique signatures under strong resonant driving, including Rabi oscillations. To date, Rabi oscillations (excluding microcavity studies) have only been reported for two-dimensional excitonic systems. We present data showing the nonlinear...
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