Change in transmittance due to free carriers in two-dimensional photonic crystals

Numerical simulation revealed that photonic crystals consisting of dielectr ic and air cylinders should have a high contrast at moderate optical power densities (P) (less than 2 kW/cm(2)) when the number of stacked layers (ST, i.e,, thickness) is larger than or equal to 32. The peak wavelength shifte d by about -32 to -39 nm when P was increased from 0 to 10 kW/cm(2) at ST g reater than or equal to 32 The peak wavelength shifted more with P with a S maller ST because the peak wavelength at P = O became longer for the wavele ngths examined.