用光子而不是电子作为信息载体 ,最有希望的光学材料是光子带隙晶体。在这种晶体中介电常数的周期结构调制能可控地禁止光波在特定波带中的传播。在光子带隙材料基础上提出的微观光操纵器件中特别感兴趣的是小心制造的浅缺陷 ,这种浅缺陷能在全光微芯片中起波导作用。最近 ,Tok Using photons instead of electrons as the information carrier, the most promising optical material is a photonic bandgap crystal. The periodic structure modulation of the dielectric constant in such crystals can controllably prohibit the propagation of light waves in a particular wavelength band. Of particular interest in micro-light manipulation devices based on photonic bandgap materials are carefully fabricated shallow defects that can act as waveguides in all-optical microchip. Recently, Tok