arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.12542physics.optics
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在包含频率维的合成空间中具有有效磁通量的孤立光子平带

Isolated Photonic Flatband with the Effective Magnetic Flux in A Synthetic Space including the Frequency Dimension

Danying Yu, Luqi Yuan, Xianfeng Chen

摘要:

平带的研究在光子学中具有重要意义,其目的是控制光的局域化,以实现光通信中的潜在应用。我们在一个包含光的频率轴的合成空间中研究平带物理。一个环形谐振器阵列被用来构建一个合成的Lieb型晶格,其中的调制相位分布支持一个局部非零的有效磁通量指向合成空间。我们发现,平带与其他色散带是孤立的,即使受到波导群速度色散的扰动,光仍然可以局域化。我们的工作指出了一条操纵光的波包沿空间维度和频率维度的局域化性能的路线,这对于控制色散材料中的光信息存储具有潜在的意义。

英文摘要:

The exploration of flatband in photonics is fundamentally important, aiming to control the localization of light for potential applications in optical communications. We study the flatband physics in a synthetic space including the frequency axis of light. A ring-resonator array is used to construct a synthetic Lieb-type lattice, where the modulation phase distribution supports a locally non-zero effective magnetic flux pointing into the synthetic space. We find that the flatband is isolated from other dispersive bands and the light can still be localized even with the perturbation from the group velocity dispersion of the waveguide. Our work points out a route towards manipulating the localization performance of a wavepacket of light along both the spatial dimension and the frequency dimension, which holds the potential implication for controlling the storage of optical information in dispersive materials.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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