In this article, we present an ultrahigh-Q cavity at terahertz (THz) frequencies. The designed cavity is built on a low-loss suspended silicon (Si) waveguide. The substrate removal under the waveguide ...

"Etched or cut crystal from companies like Fostoria or Cambridge can be worth a lot, especially full sets or rare patterns," says Barfield. Sterling silver ...

We demonstrate an apodized fiber-to-chip grating coupler using fully etched photonic crystal holes on the silicon-on-insulator platform. An ultra-high coupling efficiency of 1.65 dB (68%) with 3 dB ...