Observation of the photonic Hall effect and photonic magnetoresistance in random lasers


Modulation of scattering in random lasers (RLs) by magnetic fields has attracted much attention due to its rich physical insights. We fabricate magnetic gain polymer optical fiber to generate RLs. From macroscopic experimental phenomena, with the increase of the magnetic field strength, the magnetic transverse photocurrent exists in disordered multiple scattering of RLs and the emission intensity of RLs decreases, which is the experimental observation of photonic Hall effect (PHE) and photonic magnetoresistance (PMR) in RLs. At the microscopic level, based on the field dependence theory of magnetic disorder in scattered nanoparticles and the replica symmetry breaking theory, the magnetic-induced transverse diffusion of photons reduces the scattering disorder, and then decreases the intensity fluctuation disorder of RLs. Our work establishes a connection between the above two effects and RLs, visualizes the influence of magnetic field on RL scattering at the microscopic level, which is crucial for the design of RLs.

Publication DOI: https://doi.org/10.1038/s41467-024-48942-6
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Funding Information: We acknowledge funding support from National Natural Science Foundation of China (grant nos. 12174002; 11874012, 11874126, and 51771186), Excellent Scientific Research and Innovation Team of Anhui Province (grant no. 2022AH010003), Key Research and Develo
Additional Information: Copyright © The Author(s) 2024. This article is licensed under a Creative Commons Attribution 4.0 International License.
Publication ISSN: 2041-1723
Data Access Statement: The online version contains supplementary material available at<br/>https://doi.org/10.1038/s41467-024-48942-6.
Last Modified: 19 Jul 2024 07:14
Date Deposited: 31 May 2024 10:35
Full Text Link:
Related URLs: https://www.nat ... 467-024-48942-6 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2024-05-30
Published Online Date: 2024-05-30
Accepted Date: 2024-05-17
Submitted Date: 2023-09-26
Authors: Du, Wenyu
Hu, Lei
Xia, Jiangying
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Li, Siqi
Kuai, Yan
Cao, Zhigang
Xu, Feng
Liu, Yu
Zhou, Kaiming (ORCID Profile 0000-0002-6011-1912)
Xie, Kang
Yu, Benli
Raposo, Ernesto P.
Gomes, Anderson S. L.
Hu, Zhijia



Version: Published Version

License: Creative Commons Attribution

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