DataVXACS Applied Materials & InterfacesPaper
journal article·2023-05-10

Optoelectronic Metasurface for Free-Space Optical–Microwave Interactions

Xin Ge Zhang, Ya Lun Sun, Bingcheng Zhu, Junjia Wang, Tianxiang Zhao, Wei Xiang Jiang, Zhixiang Huang, Zaichen Zhang, Tie Jun Cui

ACS Applied Materials & Interfaces· Volume 15· Issue 18
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Source abstract

Abstract

Photon-electron interactions are essential for many areas such as energy conversion, signal processing, and emerging quantum science. However, the current demonstrations are typically targeted to fiber and on-chip applications and lack of study in wave space. Here, we introduce a concept of optoelectronic metasurface that is capable of realizing direct and efficient optical-microwave interactions in free space. The optoelectronic metasurface is realized via a hybrid integration of microwave resonant meta-structures with a photoresponsive material. As a proof of concept, we construct an ultrathin optoelectronic metasurface using photodiodes that is bias free, which is modeled and analyzed theoretically by using the light-driven electronic excitation principle and microwave network theory. The incident laser and microwave from the free space will interact with the photodiode-based metasurface simultaneously and generate strong laser-microwave coupling, where the phase of output microwave depends on the input laser intensity. We experimentally verify that the reflected microwave phase of the optoelectronic metasurface decreases as the incident laser power becomes large, providing a distinct strategy to control the vector fields by the power intensity. Our results offer fundamentally new understanding of the metasurface capabilities and the wave-matter interactions in hybrid materials.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Metamaterials and Metasurfaces Applications · Optical Wireless Communication Technologies · Plasmonic and Surface Plasmon Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, Jiangsu 210096, China

National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, Jiangsu 210096, China

National Research Center for Optical Sensors/Communications Integrated Networks, School of Electronic Science and Engineering, Southeast University, Nanjing, Jiangsu 210096, China

Frontiers Science Center for Mobile Information Communication and Security, Southeast University, Nanjing, Jiangsu 210096, China

Purple Mountain Laboratories, Nanjing 211111, China

Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei, Anhui 230039, China

Pazhou Laboratory, Huangpu, Guangzhou 510555, China

Funding

Ministry of Science and Technology of the People's Republic of China · Foundation for the Author of National Excellent Doctoral Dissertation of the People's Republic of China · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · Central University Basic Research Fund of China · National Natural Science Foundation of China · Higher Education Discipline Innovation Project · China National Postdoctoral Program for Innovative Talents · Information Materials and Intelligent Sensing Laboratory of Anhui Province

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