Space-time meta-surfaces for light waves

光波的时空超表面

• 批准号: EP/V048880/1
• 负责人: Riccardo Sapienza
• 金额: $ 25.74万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV048880%2F1
• 关键词: Space; time; meta; surfaces; light

In this project we propose experiments to develop the building blocks of a space-time metasurface for optical waves, based on large and ultrafast modulations of the complex refractive index of indium tin oxide (ITO). Static metasurfaces have been a milestone in how we control light waves by manipulating their phase and amplitude on the wavelength scale. Yet, they are still bounded by Lorentz reciprocity and energy conservation. A dynamical metasurface, whose optical response can be fully controlled at the speed of light through a time-varying refractive index, n(x,t), would not be just a powerful technological element, but would also bring about the rich new physics of non-Hermitian and non-time-reversible optics.

在这个项目中，我们提出了实验，以开发一个空间-时间元表面的光波的基础上，大和超快调制的铟锡氧化物（ITO）的复折射率。在我们如何通过在波长尺度上操纵光波的相位和振幅来控制光波方面，静态超颖表面是一个里程碑。然而，它们仍然受到洛伦兹互易性和能量守恒的约束。一个动态超颖表面，其光学响应可以通过时变折射率n（x，t）以光速完全控制，不仅是一个强大的技术元素，而且还将带来非厄米特和非时间可逆光学的丰富的新物理。

项目成果

Negative refraction in time-varying, strongly-coupled plasmonic antenna-ENZ systems

时变强耦合等离子体天线-ENZ 系统中的负折射

• 发表时间: 2021
• 期刊: International Conference on Metamaterials, Photonic Crystals and Plasmonics
• 作者: Bruno V.

APL special topic: Time modulated metamaterials

• DOI: 10.1063/5.0178275
• 发表时间: 2023-10
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Riccardo Sapienza;Maxim Shcherbakov;Daniele Faccio;Tie Jun Cui;H. Caglayan

Van der Waals Materials for Applications in Nanophotonics

• DOI: 10.1002/lpor.202200957
• 发表时间: 2022-08
• 期刊: Laser & Photonics Reviews
• 影响因子: 11
• 作者: Panaiot G. Zotev;Yue Wang;D. Andres-Penares;Toby Severs‐Millard;S. Randerson;Xuerong Hu;Luca Sortino;Charalambos Louca;M. Brotons-Gisbert;T. Huq;S. Vezzoli;R. Sapienza;T. Krauss;B. Gerardot;A. Tartakovskii

Comparison of Harmonic Generation from Crystalline and Amorphous Gallium Phosphide Nanofilms

• DOI: 10.1002/adom.202300269
• 发表时间: 2023-06
• 期刊: Advanced Optical Materials
• 影响因子: 9
• 作者: Benjamin Tilmann;T. Huq;Thomas Possmayer;J. Dranczewski;B. Nickel;Haizhong Zhang;L. Krivitsky;A. Kuznetsov;L. de S. Menezes;S. Vezzoli;R. Sapienza;Stefan A. Maier

Saturable Time-Varying Mirror Based on an Epsilon-Near-Zero Material

基于ε近零材料的可饱和时变镜

• DOI: 10.1103/physrevapplied.18.054067
• 发表时间: 2022
• 期刊: Physical Review Applied
• 影响因子: 4.6
• 作者: Tirole R