Tunable Absorption in Near Infrared Based on Indium Tin Oxide
Optics
2025-03-06 v1 Applied Physics
Abstract
We propose a serrated ultra-broadband infrared absorber based on the multi-layer repetitive stacking of indium tin oxide (ITO) and silicon materials. This absorber achieves continuously tunable absorption within a wide infrared light range. By changing the size and materials of the absorber, its average absorption rate can reach a relatively high level. Simulation results reveal wavelength-dependent electric field localization: shorter wavelengths concentrate in narrower upper regions, while longer wavelengths localize in wider lower areas. This design offers potential applications in near-infrared detectors, optical communication, and smart windows.
Cite
@article{arxiv.2503.03130,
title = {Tunable Absorption in Near Infrared Based on Indium Tin Oxide},
author = {Shuaishuai Hou and Lin Cheng and Nan Meng and Naixin Liu and JianChang Yan and JinMin Li and Kun Huang},
journal= {arXiv preprint arXiv:2503.03130},
year = {2025}
}