SCHUBERT E F TU L W. Elimination of hetero-junction band discontinuities by modulation doping[J]. Appl Phys Lett,1992, 60(2) : 466-468.
[7]
PETERS M G, YOUNG D B, PETERS F H, et al. 17. 3% peak wall plug efficiency vertical-cavity surface-emitting lasers using lower barrier mirrors[J]. IEEE Photonics Technology Letters, 1994, 6(1) : 31-33.
[8]
MACDOUGAL M H, YANG G M,BOND A E,et al. Electrically-pumped vertical-cavity lasers with AlxOy-GaAs reflectors[J]. IEEE Photonics Technology Letters, 1996, 8(3) : 310-312.