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We investigate athermal characteristics of silicon waveguides clad with TiO2. The measured ring resonance wavelengths near 1.3 μm over 20–50°C exhibit second-order thermo-optical effects and spectral dependency, implying second-order effects from TiO2 and Si combination.
Experimental demonstrations of ring resonators with TiO2 cores are presented and measured with −2.9pm/K resonance shift. Their thermo-stress-optic behavior was found to be important to their function; therefore an inclusive model is presented and simulated numerically.
This paper presents a silicon probe designed with three polysilicon resistance temperature detectors (RTDs) for heart temperature sensing in open-heart surgery. Via an integrated SU-8/Cu flexible ribbon cable for signal transmission to the instrument reader outside human body, the probe with a 40° tip angle can provide ∼0.9°C sensing accuracy and sustain a 4N buckling load large enough for the probe...
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