As a new kind of man-made structure function material, photonic crystals could realize thermal infrared camouflage because of its high-reflection photon forbidden band.

光子晶体作为一种新型人工结构功能材料，基于光子禁带的高反射特性可以实现热红外伪装。

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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.

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。

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Instead of the geometrical optics approaches, the Monte Carlo photon tracing method was used to analyze the structure design of flashlight.

不同于基于几何光学理论的闪光灯计算和设计方法，采用了蒙特卡罗光子追迹法来分析闪光灯的结构设计。

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One photon in a million comes away with a different frequency from the one that it arrived with because it changes the structure of a chemical bond in one of the plastic's molecules.

ECONOMIST: Recycling