To simulate the spontaneous emission of a light-emitting diode, a randomly oriented dipole source is launched at each Yee cell of a microcavity.

• 我们在光子晶体平板微共振腔中每一个分割点上都放置一个随机指向的电偶极源，藉此模拟实际上发光二极体的自发放光情况。