Unique material combination siple color matching up , smooth , bright line and side coheren , shows all the ingeniousidea and endless modern beauty 独特的材料组合，素雅的色彩搭配，流畅明快的线面组合，一切尽是巧妙心思的流露，展现无限现代美感。
2.
In addition , the control of spontaneous emission of a three - level atom embedded in photonic crystals was investigated in this paper , because the model of two - level atom is siple . as it shows , the properties of spontaneous emission depend not only on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density but also on the intial atomic state 二能级毕竟是最简单的模型，故在最后，还对光子晶体中三能级原子的自发辐射特性进行了研究。结果表明，其自发辐射除了依赖于原子上能级与光子频率带隙边缘的相对位置或光子态密度外，还依赖于原子的初始状态。
