Nonlinear superconducting metamaterials

非线性超导超材料

• 批准号: 276305236
• 负责人: Professor Dr. Alexey V. Ustinov, Ph.D.
• 金额: --
• 依托单位: Physikalisches Institut (PHI)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/276305236?language=en
• 关键词: Nonlinear; superconducting; metamaterials

Metamaterials are artificial and engineered structures that enable unique interactions of matter with electromagnetic waves. Using superconductors as a replacement for normal metals in metamaterials allows reducing losses by several orders of magnitude, shrinking the size of the meta-atoms and achieving a tunable frequency of operation. Moreover, superconducting meta-atoms offer strong nonlinearity and multiple dynamical states leading to new functions of metamaterials. We propose an experimental study of the nonlinear properties of superconducting metamaterials employing Josephson junctions. We will study large one- and two-dimensional arrays of frequency-tunable superconducting microwave resonators. We will explore recently discovered multi-stable dynamical states in a medium consisting of SQUID-based meta-atoms. In particular, we will design, fabricate and measure compact niobium-based Josephson junction resonators to explore their strong nonlinear effects and switching at microwave frequencies. Networks of such meta-atoms open up an opportunity, for the first time, to investigate parametric properties of a distributed Josephson medium rather than that of a single device. Using such an active parametric medium, we aim at demonstrating novel functionalities for travelling electromagnetic waves such as broadband wireless mixing and signal amplification.

超材料是人造和工程结构，能够实现物质与电磁波的独特相互作用。使用超导体替代超材料中的普通金属可以将损耗减少几个数量级，缩小超原子的尺寸并实现可调谐的工作频率。此外，超导元原子具有很强的非线性和多种动力学状态，从而产生超材料的新功能。我们提出对采用约瑟夫森结的超导超材料的非线性特性进行实验研究。我们将研究频率可调超导微波谐振器的大型一维和二维阵列。我们将探索最近在由基于 SQUID 的元原子组成的介质中发现的多稳态动力学状态。特别是，我们将设计、制造和测量紧凑型铌基约瑟夫森结谐振器，以探索其强大的非线性效应和微波频率下的开关。这种元原子网络首次为研究分布式约瑟夫森介质而不是单个设备的参数特性提供了机会。使用这种有源参数介质，我们的目标是展示行波电磁波的新颖功能，例如宽带无线混合和信号放大。

项目成果

Tunable Anderson localization of dark states

• DOI: 10.1103/physrevb.104.174202
• 发表时间: 2021-05
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: J. Brehm;Paul Pöpperl;A. Mirlin;A. Shnirman;A. Stehli;H. Rotzinger;A. Ustinov

Waveguide bandgap engineering with an array of superconducting qubits

• DOI: 10.1038/s41535-021-00310-z
• 发表时间: 2020-06
• 期刊: npj Quantum Materials
• 影响因子: 5.7
• 作者: J. Brehm;A. Poddubny;A. Stehli;T. Wolz;H. Rotzinger;A. Ustinov

Two-tone spectroscopy of a SQUID metamaterial in the nonlinear regime

非线性状态下 SQUID 超材料的双色调光谱

• DOI: 10.1103/physrevresearch.1.033096
• 发表时间: 2019
• 期刊: Physical Review Research
• 影响因子: 4.2
• 作者: E. I. Kiselev;A. S. Averkin;M. V. Fistul;V. P. Koshelets;A. V. Ustinov
• 通讯作者: A. V. Ustinov

Mode Structure in Superconducting Metamaterial Transmission-Line Resonators

• DOI: 10.1103/physrevapplied.11.054062
• 发表时间: 2018-12
• 期刊: Physical Review Applied
• 影响因子: 4.6
• 作者: H. Wang;A. Zhuravel;S. Indrajeet;B. G. Taketani;M. Hutchings;Y. Hao;F. Rouxinol;F. Wilhelm;M. LaHaye;A. Ustinov;B. Plourde

Slowing down light in a qubit metamaterial

• DOI: 10.1063/5.0122003
• 发表时间: 2022-02
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: J. Brehm;R. Gebauer;A. Stehli;A. Poddubny;O. Sander;H. Rotzinger;A. Ustinov