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介绍了 2 0世纪后期提出的新材料—光子晶体 ,重点阐述了光子晶体的能带结构 ,简单说明了光子晶体中原子的自发辐射及其应用前景
The new material - photonic crystal proposed in the late 20th century is introduced. The energy band structure of the photonic crystal is emphatically explained. The spontaneous emission of atoms in photonic crystal and its application foreground