| Autor: |
Wu Z; Department of Mechanical Engineering, Materials Science and Engineering Program, and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA. zheng@austin.utexas.edu., Kelp G; Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA., Yogeesh MN; Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA., Li W; Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA., McNicholas KM; Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA., Briggs A; Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA., Rajeeva BB; Department of Mechanical Engineering, Materials Science and Engineering Program, and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA. zheng@austin.utexas.edu., Akinwande D; Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA., Bank SR; Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA., Shvets G; Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA., Zheng Y; Department of Mechanical Engineering, Materials Science and Engineering Program, and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA. zheng@austin.utexas.edu. |
| Abstrakt: |
There has been strong interest in developing multi-band plasmonic metasurfaces for multiple optical functions on single platforms. Herein, we developed Au moiré metasurface patches (AMMP), which leverage the tunable multi-band responses of Au moiré metasurfaces and the additional field enhancements of the metal-insulator-metal configuration to achieve dual-band plasmon resonance modes in near-infrared and mid-infrared regimes with high field enhancement. Furthermore, we demonstrate the multifunctional applications of AMMP, including surface-enhanced infrared spectroscopy, optical capture and patterning of bacteria, and photothermal denaturation of proteins. With their multiple functions of high performance, in combination with cost-effective fabrication using moiré nanosphere lithography, the AMMP will enable the development of highly integrated biophotonic platforms for a wide range of applications in disease theranostics, sterilization, and the study of microbiomes. |
