Nonreciprocal reflection of mid-infrared light by highly doped InAs at low magnetic fields
Abstract
We report an experimental observation of room-temperature nonreciprocal reflection of mid-infrared light from planar highly doped InAs surfaces at low magnetic fields ranging from 0.07 T to 0.16 T. Using ellipsometry, we demonstrate that the amplitude ratio and phase shift of reflected light are nonreciprocal in the Voigt configuration. We also demonstrate using Fourier-transform infrared spectroscopy that the nonreciprocal reflectance contrast (the difference in reflectance in opposite directions) increases with the magnitude of the magnetic field for p-polarized light. Our work is a step toward the practical implementation of nonreciprocal thermal emitters and absorbers and applications such as remote magnetic field sensing.
Cite
@article{arxiv.2410.06596,
title = {Nonreciprocal reflection of mid-infrared light by highly doped InAs at low magnetic fields},
author = {Simo Pajovic and Yoichiro Tsurimaki and Xin Qian and Gang Chen and Svetlana V. Boriskina},
journal= {arXiv preprint arXiv:2410.06596},
year = {2024}
}
Comments
Main text: 11 pages, 4 figures. Supplementary material: 5 pages, 8 figures; can be found after the main text and bibliography