基于周期纳米空腔的金属介电超表面电场增强

IF 0.7 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Bulletin of the Lebedev Physics Institute Pub Date : 2025-05-31 DOI:10.3103/S1068335625600196

A. V. Ivanov, N. V. Bakholdin, M. S. Mikhailov, A. N. Lagarkov, I. A. Ryzhikov, K. N. Afanasev, I. V. Bykov, A. F. Smyk, A. V. Shurygin, A. N. Shalygin, G. Barbillon, A. K. Sarychev

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引用次数: 0

摘要

提出了一种新的纳米尺度超表面聚焦光。超表面由周期性的介电纳米空腔和顶部的银纳米层组成。当与光相互作用时，超表面表现出等离子体共振，导致局部电场增强。在计算和实验中得到了最小值，表明光在超表面上的定位。我们认为该超表面可以作为一种有效的SERS底物，用于检测各种蛋白质、细菌、病毒及其衍生物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Electric Field Enhancement in Metal-Dielectric Metasurface Based on Periodic Nanocavities

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Electric Field Enhancement in Metal-Dielectric Metasurface Based on Periodic Nanocavities

A new metasurface focusing light at a nanoscale is presented. The metasurface consists of periodic dielectric nanocavities with a top silver nanolayer. When interacting with the light, the metasurface exhibits plasmon resonances, which lead to the local electric field enhancement. The minima in the calculated and experimental reflectance spectra that indicate the light localization on the metasurface are obtained. We propose that the metasurface can be an effective SERS substrate for the detection of various proteins, bacteria, viruses and their derivatives.

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来源期刊

Bulletin of the Lebedev Physics Institute PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

25.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.