Band-gap engineering of amorphous photonic materials

The relation between the structural characteristics and the transmission properties of amorphous photonic material (APM) is studied. The simulation and the experimental results show that the long-range order of the basic lattice in the APM has little relation with the optical properties of the photonic material. In contrast, the condition of the unit cell of the APM has a close relation to the transmission property of the APMs. The band-gap and the band properties change with the shrinking of the unit cells. This suggests a procedure for band-gap engineering of amorphous photonic materials.