Tunable Radiation Patterns on Temperature-Dependent Materials

IF 2.1 4区物理与天体物理 Q2 OPTICS

Photonics Pub Date : 2024-07-08 DOI:10.3390/photonics11070646

Lin Cheng, Fan Wu, Kun Huang

引用次数: 0

Abstract

The utilization of optical antennas for active control of far-field radiation at the subwavelength scale is crucial in various scientific and technological applications. We propose a thermally tunable disk design of indium tin oxide (ITO) and aluminum gallium nitride (Al0.18Ga0.82As), enabling a switch between absorption and scattering. Furthermore, the control of far-field radiation pattern can be easily realized by combining ITO and Al0.18Ga0.82As to enhance or suppress emission. Our results demonstrate that hybrid structures can be dynamically tuned with temperature variations. In the proposed design, a frequency is achieved at the wavelength of 1240 nm. The thermal tunability of hybrid structures introduces new multifunctional possibilities for light manipulation, thereby enhancing the potential applications of new devices in the near-infrared range.

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温度相关材料上的可调谐辐射模式

在各种科学和技术应用中，利用光学天线主动控制亚波长尺度的远场辐射至关重要。我们提出了一种铟锡氧化物（ITO）和氮化铝镓（Al0.18Ga0.82As）的热可调圆盘设计，实现了吸收和散射之间的切换。此外，通过结合氧化铟锡和氮化铝镓（Al0.18Ga0.82A）来增强或抑制发射，可以轻松实现远场辐射模式的控制。我们的研究结果表明，混合结构可随温度变化而动态调整。在拟议的设计中，实现了波长为 1240 nm 的频率。混合结构的热可调性为光操纵带来了新的多功能可能性，从而增强了新器件在近红外范围的潜在应用。

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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来源期刊

Photonics Physics and Astronomy-Instrumentation

CiteScore

2.60

自引率

20.80%

发文量

817

审稿时长

8 weeks

期刊介绍： Photonics (ISSN 2304-6732) aims at a fast turn around time for peer-reviewing manuscripts and producing accepted articles. The online-only and open access nature of the journal will allow for a speedy and wide circulation of your research as well as review articles. We aim at establishing Photonics as a leading venue for publishing high impact fundamental research but also applications of optics and photonics. The journal particularly welcomes both theoretical (simulation) and experimental research. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation and experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material.