Nano electro-optical modulator and all-optical logic gate on a silicon chip

[摘要]：We designed a nanoscale optical communication device for use as an electro-optical modulator, an all-optical modulator, or an all-optical cascadable logic gate. The device is based on electrostatic forces and has the shape of a parallel plate capacitor. Careful planning of the dimensions allows for operation frequencies of up to hundreds of megahertz and a contrast of more than 3 dB. The device can be implemented for AND, NOT, and NAND gates. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3600615]

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