研究期間：10108~10207;We plan to study the slow light effect in a novel ring resonator. The coupling region of the novel ring resonator is designed to be on the half of the ring waveguide. The Q factor and the finesse of the device can be largely enhanced. The preliminary result shows that Q-factor can be as high as 40,000. This is a 3-year project. In the first year, we plan to optimize the novel ring resonator to obtain the higher finesse. We will use the finite-difference time-domain method to study the performance of the devices. In the second year, we will use silicon-on-insulator wafer to realize the sample. We will use the e-beam lithography of National Central University and focused ion beam of National University of Singapore for the fabrication. We will also measure the performance of the samples. In the third year, we will feedback the measurement result to the design to optimize the device performance. The aim is to make the input pulse stay longer in the ring resonator and to reduce the effective light velocity. The Q-factor of 106 is expected to be achieved. For the applications, we will try to fabricate the micro-fluidic channels on the ring-resonator to realize the label-free biosensors. We will also inject the liquid crystal into the channel to realize the wavelength-tunable filter.