[摘要]：Formation of cavity modes in a recently found unique photonic structure "photonic amorphous diamond (PAD)" has been investigated by finite-difference time domain calculations. A well-confined monopole mode has been found to form when a rod is removed from the structure. The quality (Q) factor and mode volume (V-m) of such a cavity mode in PAD have been evaluated and compared with those in a conventional photonic crystal with a crystalline diamond structure. The two structures have shown nealy the same Q-factor and V-m, leading to the conclusion that strong light confinement is realizable in PAD as well as conventional photonic crystals. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4704182]
