Dynamic modulation of nonreciprocal absorption in a graphene-InAs hybrid structure under low magnetic field and small incident angles.

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-03-01 DOI:10.1364/OL.553323

Ye Ming Qing, Jiao Liu, Zhaoyan Yang, Liang Wei Wu, Yue Gou, Jun Wu, Bingxiang Li

引用次数: 0

Abstract

Overcoming Kirchhoff's laws to achieve strong nonreciprocity enhances energy harvesting and thermal management. Current magneto-optical (MO) strategies need high magnetic excitation and large incident angles, hindering practicality. We designed a graphene-InAs hybrid for significant nonreciprocity between absorptivity and emissivity at small angles with just 0.16 T, showing practical potential. By tuning graphene's Fermi energy, nonreciprocity strength can be adjusted via resonance mode competition. This design offers new insights for dynamic nonreciprocal radiation devices under near-normal light and modest magnetic excitation, facilitating practical use.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.