Loss-induced nonreciprocity

Loss-induced nonreciprocity

Abstract Nonreciprocity is important in both optical information processing and topological photonics studies. Conventional principles for realizing nonreciprocity rely on magnetic fields, spatiotemporal modulation, or nonlinearity. Here we propose a generic principle for generating nonreciprocity b...

Full description

Bibliographic Details
Main Authors: Xinyao Huang, Cuicui Lu, Chao Liang, Honggeng Tao, Yong-Chun Liu
Format: Article
Language:English
Published: Nature Publishing Group 2021-02-01
Series:Light: Science & Applications
Online Access:https://doi.org/10.1038/s41377-021-00464-2
id doaj-007a19a8ac644866a68dd13823444efd
record_format Article
spelling doaj-007a19a8ac644866a68dd13823444efd2021-02-07T12:15:37ZengNature Publishing GroupLight: Science & Applications2047-75382021-02-011011810.1038/s41377-021-00464-2Loss-induced nonreciprocityXinyao Huang0Cuicui Lu1Chao Liang2Honggeng Tao3Yong-Chun Liu4State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua UniversityKey Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements of Ministry of Education, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of TechnologyState Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua UniversityState Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua UniversityState Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua UniversityAbstract Nonreciprocity is important in both optical information processing and topological photonics studies. Conventional principles for realizing nonreciprocity rely on magnetic fields, spatiotemporal modulation, or nonlinearity. Here we propose a generic principle for generating nonreciprocity by taking advantage of energy loss, which is usually regarded as harmful. The loss in a resonance mode induces a phase lag, which is independent of the energy transmission direction. When multichannel lossy resonance modes are combined, the resulting interference gives rise to nonreciprocity, with different coupling strengths for the forward and backward directions, and unidirectional energy transmission. This study opens a new avenue for the design of nonreciprocal devices without stringent requirements.https://doi.org/10.1038/s41377-021-00464-2
collection DOAJ
language English
format Article
sources DOAJ
author Xinyao Huang
Cuicui Lu
Chao Liang
Honggeng Tao
Yong-Chun Liu
spellingShingle Xinyao Huang
Cuicui Lu
Chao Liang
Honggeng Tao
Yong-Chun Liu
Loss-induced nonreciprocity
Light: Science & Applications
author_facet Xinyao Huang
Cuicui Lu
Chao Liang
Honggeng Tao
Yong-Chun Liu
author_sort Xinyao Huang
title Loss-induced nonreciprocity
title_short Loss-induced nonreciprocity
title_full Loss-induced nonreciprocity
title_fullStr Loss-induced nonreciprocity
title_full_unstemmed Loss-induced nonreciprocity
title_sort loss-induced nonreciprocity
publisher Nature Publishing Group
series Light: Science & Applications
issn 2047-7538
publishDate 2021-02-01
description Abstract Nonreciprocity is important in both optical information processing and topological photonics studies. Conventional principles for realizing nonreciprocity rely on magnetic fields, spatiotemporal modulation, or nonlinearity. Here we propose a generic principle for generating nonreciprocity by taking advantage of energy loss, which is usually regarded as harmful. The loss in a resonance mode induces a phase lag, which is independent of the energy transmission direction. When multichannel lossy resonance modes are combined, the resulting interference gives rise to nonreciprocity, with different coupling strengths for the forward and backward directions, and unidirectional energy transmission. This study opens a new avenue for the design of nonreciprocal devices without stringent requirements.
url https://doi.org/10.1038/s41377-021-00464-2
work_keys_str_mv AT xinyaohuang lossinducednonreciprocity
AT cuicuilu lossinducednonreciprocity
AT chaoliang lossinducednonreciprocity
AT honggengtao lossinducednonreciprocity
AT yongchunliu lossinducednonreciprocity
_version_ 1724281412095311872

Similar Items