The dispersion relation and the optical transmittance of a two-dimensional photonic crystal composed of the hexagonal array of cylindrical air holes fabricated in a dielectric slab were analyzed by group theory and the numerical calculation based

一款经典的图表控件，可用于制作2维、3维曲线、柱状、饼状等各种曲线，可用于VC、VB、DELPHI等-A classic chart control can be used to produce 2-D and 3-dimensional curves, cylindrical, pie and other curves can be used for VC, VB, DELPHI etc.