Time-asymmetric loop around an exceptional point over the full optical communications band.

Nature
Jae Woong YoonPierre Berini

Abstract

Topological operations around exceptional points1-8-time-varying system configurations associated with non-Hermitian singularities-have been proposed as a robust approach to achieving far-reaching open-system dynamics, as demonstrated in highly dissipative microwave transmission3 and cryogenic optomechanical oscillator4 experiments. In stark contrast to conventional systems based on closed-system Hermitian dynamics, environmental interferences at exceptional points are dynamically engaged with their internal coupling properties to create rotational stimuli in fictitious-parameter domains, resulting in chiral systems that exhibit various anomalous physical phenomena9-16. To achieve new wave properties and concomitant device architectures to control them, realizations of such systems in application-abundant technological areas, including communications and signal processing systems, are the next step. However, it is currently unclear whether non-Hermitian interaction schemes can be configured in robust technological platforms for further device engineering. Here we experimentally demonstrate a robust silicon photonic structure with photonic modes that transmit through time-asymmetric loops around an exceptional point in the optic...Continue Reading

References

Feb 15, 2001·Physical Review Letters·C DembowskiA Richter
Mar 16, 2007·Physical Review Letters·Carl M BenderBernhard K Meister
Sep 4, 2008·Physical Review Letters·Shachar KlaimanNimrod Moiseyev
Dec 10, 2007·Optics Express·Q LinGovind P Agrawal
Dec 24, 2011·Science·Li FanMinghao Qi
Aug 10, 2012·Nature·Alois RegensburgerUlf Peschel
Nov 22, 2014·Science·Liang FengXiang Zhang
Mar 18, 2017·Physical Review Letters·Absar U HassanDemetrios N Christodoulides
Aug 11, 2017·Nature·Hossein HodaeiMercedeh Khajavikhan
Aug 11, 2017·Nature·Weijian ChenLan Yang
Jan 20, 2018·Physical Review Letters·Tamar GoldzakNimrod Moiseyev

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Citations

May 2, 2020·Physical Review Letters·Qingjie LiuPeixiang Lu
Apr 10, 2019·Nature Materials·Ş K ÖzdemirL Yang
Sep 7, 2019·Physical Review Letters·Kohei KawabataMasatoshi Sato
Mar 14, 2020·Physical Review Letters·Tong WuXiangdong Zhang
Aug 17, 2020·Optics Letters·Song-Rui YangHong-Bo Sun
Mar 2, 2021·Proceedings. Mathematical, Physical, and Engineering Sciences·Linlin GengXiaoming Zhou
May 15, 2021·Physical Review Letters·Wenquan LiuJiangfeng Du
Sep 4, 2021·Physical Review Letters·Sebae ParkJae Woong Yoon
Apr 13, 2019·Science·Ying LiCheng-Wei Qiu
Sep 15, 2020··G. Lopez GalmicheAbsar Ul-Hassan
Sep 15, 2020··H. E. Lopez AvilesP. L. LiKamWa
May 8, 2019··Demetrios N. ChristodoulidesMercedeh Khajavikhan

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Methods Mentioned

BETA
scanning electron microscopy
electron-beam lithography

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