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We fabricated a silicon-based three-dimensional photonic crystal nanocavity by micromanipulation technique, exhibiting a high quality factor of ∼14,500. Lasing oscillation with an InAs/GaAs quantum-dot layer inserted in the cavity was successfully demonstrated at 11K.
We present the design, fabrication and optical investigation of photonic crystal (PhC) nanocavity drop filters for use as optical biosensors. The resonant cavity mode wavelength and Q-factor are studied as a function of the ambient refractive index and as a function of adsorbed proteins (bovine serum albumin) on the sensor surface. Experiments were performed by evanescent excitation of the cavity...
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