Nonlinear light propagation in the defect band of one-dimensional defective structures

作者：Zhang, Yongliang^*; Chen, Xinlong; Wang, Yunfei; Zhao, Zhensheng; Duan, Xuanming

来源：Optics Communications, 2011, 284(5): 1439-1443.

DOI：10.1016/j.optcom.2010.10.078

• Defect band
• Nonlinear transmission
• Gap soliton

In this paper we numerically investigate the nonlinear propagation of defect state in one-dimensional structures with defects. We investigate the nonlinear transmission spectra and the bistable response for defective structures with different index gradients. The results show that positive Kerr nonlinearity can suppress the Wannier-Stark localization. And the nonlinear response of defect states band exhibits an optical switch behavior, which may be applied to all-optical devices. And the gap solitons from these defect states are presented.

• 出版日期2011-3-1
• 单位重庆大学; 中国科学院理化技术研究所