Scholarlink

<p>Nonreciprocity in space-time modulated photonic crystals has been explored in the context of nonreciprocal propagation and polarization. In this study, we investigate reconfigurable nonreciprocal wave growth in space-time modulated crystals. By imposing an adaptable progressive phase shift between successive time-modulated cells, we induce blue and red shifts in the forward and backward momentum band gaps around the typical normalized growth frequency of 0.5. This spatiotemporal scheme is applied to engineer the dispersion relation of a loaded transmission line−a 1D periodic structure−in the microwave regime. The nonreciprocal wave growth is studied and analyzed under conditions that either allow or forbid backward propagation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Nonreciprocal signal growth in space-time modulated transmission lines

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月30日

查看全文
  • Mohamed F. Hagag,
  • Thomas R. Jones,
  • Karim Seddik,
  • Dimitrios Peroulis

摘要

Nonreciprocity in space-time modulated photonic crystals has been explored in the context of nonreciprocal propagation and polarization. In this study, we investigate reconfigurable nonreciprocal wave growth in space-time modulated crystals. By imposing an adaptable progressive phase shift between successive time-modulated cells, we induce blue and red shifts in the forward and backward momentum band gaps around the typical normalized growth frequency of 0.5. This spatiotemporal scheme is applied to engineer the dispersion relation of a loaded transmission line−a 1D periodic structure−in the microwave regime. The nonreciprocal wave growth is studied and analyzed under conditions that either allow or forbid backward propagation.