Photonic Crystal and GeSiSn Alloy

Abstract

Photonic crystals are periodic optical nanostructures which their dielectric are periodically arranged or designed to affect the motion of photons. Therefore, they have photonic band structures and photonic band gap which can be analogized to the energy band structures and energy band gap of semiconductors. The photonic band gap can control some photon frequencies to only propagate in some direction. Silicon photonics are photonic crystals which are made of silicon (the second most abundant element on the earth and non toxic) or alloys of Si, Ge and Sn. Therefore, optoelectronic devices which are made of silicon photonics is a new interesting idea by taking advantage of using knowledge about silicon technology to improve an efficiency of a calculation and information transferring.