Md. Tocci et al., MEASUREMENT OF SPONTANEOUS-EMISSION ENHANCEMENT NEAR THE ONE-DIMENSIONAL PHOTONIC BAND-EDGE OF SEMICONDUCTOR HETEROSTRUCTURES, Physical review. A, 53(4), 1996, pp. 2799-2803
We present results of an experimental investigation into alteration of
the spontaneous emission spectrum of GaAs from within one-dimensional
photonic band gap (PEG) structures. The PEG samples are multilayer Al
As/Al0.2Ga0.8As/GaAs p-i-n light-emitting diodes, with layers arranged
as a distributed Bragg reflector. The emission spectra normal to the
layers are measured, and we use a simple method to model the power spe
ctrum of spontaneous emission from within the structures. We find that
the emitted power is enhanced by a factor of 3.5 at the frequencies n
ear the photonic band edge.