-
We have studied the photonic band of dual_periodic one_dimensional(1D) photonic crystals. The band splits into many sub_bands when we modulate periodically the thickness of the unit of the 1D photonic crystal. Some narrow bands appear in th e gap of the simple photonic crystal with single_period. The field of the electr omagnetic modes in the split bands exhibits dual_periodicity. The modes in the n arrow bands are localized, but those in the wider bands are extended.
-
Keywords:
- photonic crystal, dual-period, electromagnetic mode /
- /
计量
- 文章访问数: 5900
- PDF下载量: 849
- 被引次数: 0