近零折射率光子學

探索極低折射率介質中的電磁波傳播特性與光與物質相互作用

背景簡介

近零折射率(NZI)光子學致力於研究有效介電常數、磁導率或兩者同時趨近於零的特殊材料。在這些奇特的介質中,光的相速度趨於無窮大,導致電磁場的空間與時間變化發生解耦。因此,電磁波的空間相位在宏觀距離內能夠保持均勻一致,這從根本上改變了光的傳播方式以及光與物質的相互作用機制。

本研究方向橫跨基礎電磁學與先進材料科學。通過消除光的空間相位累積,近零折射率介質為探索極端光學機制以及在傳統介質或金屬環境中無法觀測到的新型波動現象提供了可能。

研究意義與潛在應用

利用近零折射率機制能夠實現對電磁場前所未有的控制能力,為波前調控和量子過程增強提供了多功能平臺。其潛在應用具有顛覆性意義,涵蓋與形狀無關的光學隧道效應、高效率非線性光學頻率變換、大面積單模相干輻射源,以及用於先進計算與遠程通信的超緊湊光學邏輯元件。

研究焦點

近零折射率光子學介質:製備、預研、新現象和應用。

我們也致力於發展和引進交叉與跨(多)學科的新方法和新技術 (Wu et al., 2021; Wang et al., 2021; Huang et al., 2022) ,同時進行著理論、仿真與實驗研究 (Wu et al., 2021; Wu et al., 2020; Wu* et al., 2024; Wu* et al., 2025)

相關成果

2026

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    Thermo-optic dynamics of effective epsilon-near-zero media
    arXiv preprint, Apr 2026

2025

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    Intracavity Epsilon-Near-Zero Dual-Range Frequency Switch
    ACS Photonics, Mar 2025

2024

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    Thermo-optic epsilon-near-zero effects
    Nature Communications, Jan 2024

2023

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    Manufacturing-Enabled Tunability of Linear and Nonlinear Epsilon-Near-Zero Properties in Indium Tin Oxide Nanofilms
    ACS Applied Materials & Interfaces, Jul 2023

2022

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    Observation of SQUID-Like Behavior in Fiber Laser with Intra-Cavity Epsilon-Near-Zero Effect
    Laser & Photonics Reviews, Dec 2022
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    All-optical switching in epsilon-near-zero asymmetric directional coupler
    Scientific Reports, Oct 2022
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    Ultrafast dynamic switching of optical response based on nonlinear hyperbolic metamaterial platform
    Optics Express, Jun 2022
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    Pulse interactions in periodic and genetic-algorithm-optimized aperiodic epsilon-near-zero multilayers
    Journal of the Optical Society of America B, Jan 2022

2021

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    Numerical investigations on the cascaded high harmonic and quasi-supercontinuum generations in epsilon-near-zero aluminum-doped zinc oxide nanolayers
    Jiaye Wu, Ze Tao Xie, H.Y. Fu, and Qian Li*
    Results in Physics, May 2021
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    Manipulation of epsilon-near-zero wavelength for the optimization of linear and nonlinear absorption by supercritical fluid
    Scientific Reports, Dec 2021
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    Comparison Study of Multi-Slot Designs in Epsilon-Near-Zero Waveguide-Based Electro-Optical Modulators
    IEEE Photonics Journal, Jun 2021
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    Optimization of Epsilon-Near-Zero Multilayers for Near-Perfect Light Absorption Using an Enhanced Genetic Algorithm
    IEEE Photonics Journal, Oct 2021

2020

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    Tunable Electro- and All-Optical Switch Based on Epsilon-Near-Zero Metasurface
    Ze Tao Xie, Jiaye Wu, H. Y. Fu, and Qian Li*
    IEEE Photonics Journal, Aug 2020
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    Comparative study on epsilon-near-zero transparent conducting oxides: High-order chromatic dispersions and modeling of ultrashort pulse interactions
    Physical Review A, Nov 2020