In article number 1900054 by Jesper Mork and co‐workers, the properties of Fano resonances and their use in integrated photonics for realizing optical signal processing are reviewed. The cover image shows a photonic crystal structure, where a Fano resonance is used to realize all‐optical switching. The light beam enters through a line‐defect waveguide and excites a nanocavity, where the light is concentrated and induces nonlinear effects. Interference with the waveguide field leads to switching for ultra‐small light intensity.

中文翻译：

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Fano共振：使用Fano共振的平面光子晶体器件（Laser Photonics Rev. 13（12）/ 2019）

Jesper Mork及其同事的文章编号1900054中，回顾了Fano共振的特性及其在集成光子学中用于实现光信号处理的用途。封面图像显示了光子晶体结构，其中使用了Fano共振来实现全光切换。光束通过线缺陷波导进入并激发纳米腔，在纳米腔中光会聚并引起非线性效应。对波导场的干扰会导致切换到极小的光强度。