双层位错金属光栅的荧光增强特性研究

IF 5.7 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Chemistry C Pub Date : 2024-09-12 DOI:10.1039/d4tc01680g

Dongliang Tian, Zhiyuan Wang, Bin Han, Jie Song, Chunying Liu, Zhihui Chen, Yang Wang

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引用次数: 0

摘要

本文提出了一种双层位错金属光栅混合结构，它由位错金属光栅和倾斜介质光栅组成。通过将荧光材料置于混合结构的聚甲基丙烯酸甲酯（PMMA）区域，该结构实现了显著的远场荧光定向发射增强。利用有限差分时域法研究了偏振态、金属光栅周期和其他参数对定向荧光发射增强的影响。优化参数后，荧光增强因子高达 1560 倍，其中发射增强 39 倍，激发增强 40 倍。远场辐射角小于 18°，改善了远场辐射特性。这项工作在荧光检测、成像和其他发光器件方面具有应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Study on the fluorescence enhancement characteristics of double-layer dislocated metal gratings

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Study on the fluorescence enhancement characteristics of double-layer dislocated metal gratings

In this paper, a double-layer dislocated metal grating hybrid structure is proposed, which is composed of a dislocated metal grating and an inclined dielectric grating. By locating the fluorescent material in the polymethyl methacrylate (PMMA) region of the hybrid structure, the structure achieves a remarkable far-field fluorescence directional emission enhancement. The effects of polarization state, metal grating period, and other parameters on directional fluorescence emission enhancement are studied by the finite-difference time-domain method. After optimizing the parameters, the fluorescence enhancement factor is as high as 1560-fold, of which the emission enhancement is 39-fold and the excitation enhancement is 40-fold. The far-field radiation angle is less than 18°, and the far-field radiation characteristics are improved. This work has application potential in fluorescence detection, imaging, and other luminescence devices.

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来源期刊

Journal of Materials Chemistry C MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED

CiteScore

10.80

自引率

6.20%

发文量

1468

期刊介绍： The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study: Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability. Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine. Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive. Bioelectronics Conductors Detectors Dielectrics Displays Ferroelectrics Lasers LEDs Lighting Liquid crystals Memory Metamaterials Multiferroics Photonics Photovoltaics Semiconductors Sensors Single molecule conductors Spintronics Superconductors Thermoelectrics Topological insulators Transistors