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15 September 2004 Temperature tuning of the optical properties of planar photonic crystal microcavities
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We report on the temperature tuning of the optical properties of planar Photonic Crystal (PhC) microcavities. Studies were made on one and two dimensional PhCs that were etched in InP and GaAs vertical waveguides. Two dimensional (hexagonal) and one-dimensional (Fabry-Perot) cavities were optically investigated by an internal light source technique. The samples were mounted on a Peltier-stage which allowed temperature variation from T = 20 °C up to T = 76 °C. A linear dependence of the resonance wavelengths with respect to temperature is observed. A gradient of dλ/dT = 0.09 nm/°C and 0.1 nm/°C for the GaAs and InP based cavities was observed, respectively. These results are in agreement with the theoretical calculations based on the thermal dependence of the refractive index of the PhC semiconductor component.
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Barbara Wild, Rolando Ferrini, Romuald Houdre, Mikael Mulot, Srinivasan Anand, and Christopher J.M. Smith "Temperature tuning of the optical properties of planar photonic crystal microcavities", Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004);

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