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Front-induced transitions
Nature Photonics ( IF 35.0 ) Pub Date : 2019-09-16 , DOI: 10.1038/s41566-019-0511-6
Mahmoud A. Gaafar , Toshihiko Baba , Manfred Eich , Alexander Yu. Petrov

Refractive index fronts propagating in waveguides are special spatiotemporal perturbations. The interaction of light with such fronts can be described in terms of an indirect transition where the frequency and wavenumber of a guided mode both are changed. In recent years, front-induced transitions have been used in dispersion-engineered waveguides for frequency conversion, optical delays, and bandwidth and pulse duration manipulation. These concepts have originated from different research areas of photonics, such as nonlinear fibre optics, slow-light waveguides, plasma physics, moving media and relativistic effects. Here, we discuss these concepts, providing a unifying theoretical description and highlight the potential of this exciting research field for light manipulation in guided optics.



中文翻译:

前向过渡

在波导中传播的折射率前沿是特殊的时空扰动。可以通过间接跃迁来描述光与此类前沿的相互作用,在间接跃迁中,导模的频率和波数均会发生变化。近年来,在色散工程波导中使用前感应跃迁进行频率转换,光延迟以及带宽和脉冲持续时间操纵。这些概念源自光子学的不同研究领域,例如非线性光纤,慢光波导,等离子体物理学,运动介质和相对论效应。在这里,我们讨论这些概念,提供统一的理论描述,并强调这一激动人心的研究领域在引导光学中进行光处理的潜力。

更新日期:2019-09-16
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