Affiliation:
1. School of Semiconductor and Physics, North University of China, Taiyuan 030051, China
2. School of Textile Science and Engineering, Xi’an Polytechnic University, Xi’an 710049, China
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.
Funder
National Natural Science Foundation of China
The Natural Science Foundation of Shanxi Province, China
Research Project Supported by Shanxi Scholarship Council of China
Shanxi Provincial Teaching Reform and Innovation Project
The fellowship of China Postdoctoral Science Foundation
Shaanxi Fundamental Science Research Project for Mathematics and Physics
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