光在非均匀介质中反射和透射系数的精确解析
, PP. 750-756
Keywords: 分析转移矩阵方法,WKB法,反射,透射
Abstract:
对任意非均匀介质波导通过分层转化为多层波导再利用分析转移矩阵方法(ATMM)考虑层间子波相移的贡献,定义了包含主波和子波的总波数(GeneralWaveNumber),得到了光在非均匀平板介质波导结构中传输的反射系数和透射系数表达式。从推导过程和解析式表明推导过程没有引入任何的近似得到的结论是可靠精确的;解析式本身非常简明且物理意义清晰;所得到的解析式既适合于折射率均匀的分层结构又适合于折射率非均匀变化的各种复杂结构。预计在薄膜加工工艺中具有非常广泛的的应用前景。
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