这是一个计算能带结构的软件，也是很不错的。-This is a calculated band structure of the software is also very good.

CAMFR (CAvity Modelling FRamework) is a fast, flexible, friendly full-vectorial Maxwell solver. Although it can tackle general electromagnetic problems, its main focus is on applications in the field of photonics

适用于例如光子晶体等光学设计等领域得很好的软件-a sortware for optical design and calculation.