We investigate optical precursors transmitted through a double-Lorentz dielectric consisting of two adjacent narrow resonances. Compared to the patterns in a single-Lorentz dielectric, the transmitted envelope shows additional modulation that oscillates at the separation frequency between two resonances, corresponding to the doublet frequency separation. We use the weakly dispersive, narrow-resonance condition to analyze it, which compares favorably to our observations. This work will be meaningful to identify dielectric properties by analyzing multi-resonant media for application of optical communication.

中文翻译：

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弱色散双窄共振电介质中的光学前驱体

我们研究了通过双洛伦兹电介质传输的光学前体，该双洛伦兹电介质由两个相邻的窄共振组成。与单洛伦兹电介质中的图案相比，传输的包络线显示出额外的调制，该调制在两个共振之间的分离频率处振荡，对应于双峰频率分离。我们使用弱色散，窄共振条件对其进行分析，这与我们的观察结果相比具有优势。这项工作对于通过分析用于光通信的多谐振介质来识别介电特性将是有意义的。