使用单纳米线探测器的深亚波长三维成像。

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-09-25 DOI:10.1021/acs.nanolett.5c03232

Nils Lamers, , , Nicklas Anttu, , , Kristi Adham, , , Lukas Hrachowina, , , Dan Hessman, , , Magnus T. Borgström, , and , Jesper Wallentin*,

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引用次数: 0

摘要

纳米线具有高分辨率成像的理想形状，具有高分辨率的小截面和强吸收的长长度。然而，由于纳米线的吸收主要受纳米光子效应的影响，目前还不清楚这种装置能提供什么样的分辨率和效率。本文利用实验和光学模型研究了纳米线直接探测器的空间分辨率和效率限制。我们演示了一种直接检测方案，使用基于直径为InP 80 nm的纳米线二极管的单像素探测器，通过激光聚焦进行三维成像。我们的探测器具有2.9 AW-1的表观峰值响应度和大约106强度的动态范围。光学模型显示，纳米线直径在100 nm左右的空间分辨率最佳，而更小的直径会导致分辨率的损失。此外，我们发现纳米线直径可以同时优化分辨率和吸收。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Deep Sub-Wavelength 3D Imaging Using a Single Nanowire Detector

Nanowires have an ideal shape for high-resolution imaging, with a small cross-section for high resolution and a long length for strong absorption. However, since the absorption in nanowires is dominated by nanophotonic effects, it is unclear what resolution and efficiency such devices could offer. Here, we investigate the limits of spatial resolution and efficiency of nanowire-based direct detectors using experiments and optical modeling. We demonstrate a direct detection scheme using a single pixel detector based on an InP 80 nm diameter nanowire diode by 3D imaging with a laser focus. Our detector has an apparent peak responsivity of 2.9 AW^–1 and a dynamic range of approximately 10⁶ in intensity. Optical modeling shows a clear optimum for the spatial resolution at around 100 nm nanowire diameter, while even smaller diameters lead to a loss of resolution. Additionally, we find that the nanowire diameter can be optimized for resolution and absorption simultaneously.

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.