结果表明通过改变缺陷的半径和介电常量大小可以在光子晶体禁带中一定的范围内调节缺陷模式的共振频率大小。
The numerical results show that the value of the resonant modes of the photonic crystal can be modulated by changing the radius and dielectric constant.
该结构在光子晶体中构成光波导，能使光子禁带中不同的被选择的缺陷态频率的光子以极低的损耗通过。
This structure can form a wave-guide in photon crystals and light can propagate in it with different selected frequency in photonic band gap with low loss.
由于利用光子晶体的禁带特性，能够对落入光子晶体禁带中的光波实现全反射，故频率转换效率很高。
Frequency conversation efficiency is special high, because omni-directional can reflect in band gap region of photonic crystals.
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