Effective medium parameters for 1D photonic crystal containing single-negative material layers using the envelope function approach

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（4）
• 页码范围: 1-3
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201311.040501

摘要

Nonlinear wave propagation in a 1D photonic crystal containing single-negative layers is investigated using the multiple-scale method.In this approach,the electric field is decomposed into a slowly varying envelope function and a fast Bloch-like function to obtain the analytic expressions of the effective parameters of an equivalent medium.The periodic structure has an equivalent left-handed medium for the envelope function.Gap soliton formation is discussed and compared with that associated with the Bragg gap.