Open AccessManipulating electromagnetic wave propagating non-reciprocally by a chain of ferrite rods
Author(s) -
Chao Ju,
RuiXin Wu,
Zhen Li,
Yin Poo,
Shi-Yang Liu,
Zhen Lin
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.022096
Subject(s) - wave propagation , optics , diffraction , ferrite (magnet) , reciprocal , electromagnetic radiation , microwave , reflection (computer programming) , physics , magnetic field , materials science , philosophy , linguistics , quantum mechanics , computer science , programming language
We demonstrated that non-reciprocal wave propagation could be manipulated by a magnetic rod chain under bias DC magnetic fields. Made of ferrite material YIG and designed working in the microwave X-band, the rod chain exhibited almost a total reflection when the incident wave obliquely impinged on the rod chain, but exhibited nearly a total transmission when the wave reversed its propagation direction. The non-reciprocal wave propagation was due to the non-reciprocal diffraction of the rod chain for the orders 0 and ± 1. Further, the non-reciprocal wave propagation was directly observed by using the field mapping technique. The unique non-reciprocal wave property of the magnetic rod chain provides a new way to control the flow of EM waves.