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Optical Engineering

Magnetically manipulable unidirectional self-collimated propagation in two-dimensional ferromagnetic material
Author(s): Qing-bo Li; Ping Zhou; Xue-wei Ping; Hui-ling Sun; Shan-shan Li
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Paper Abstract

We present microwave self-collimated properties in two-dimensional ferromagnetic photonic crystals (FPCs) made of an array of ferrite rods. Through utilizing the time reversal symmetry-breaking nature of the FPCs, a technique, i.e., unidirectional self-collimation transmission, can be exhibited near the magnetic surface plasmon resonance and the spin wave resonance by designing the appropriate structure. An incident self-collimated beam can be absorbed completely at a particular bending channel, while an obvious transmission is observed at the symmetrically opposite direction. The working frequency of the unidirectionality can be controlled as well by tuning the external static magnetic field.

Paper Details

Date Published: 15 October 2015
PDF: 4 pages
Opt. Eng. 54(10) 107105 doi: 10.1117/1.OE.54.10.107105
Published in: Optical Engineering Volume 54, Issue 10
Show Author Affiliations
Qing-bo Li, Huaiyin Normal Univ. (China)
Nanjing Univ. (China)
Ping Zhou, Huaiyin Normal Univ. (China)
Xue-wei Ping, Hohai Univ. (China)
Hui-ling Sun, Huaiyin Normal Univ. (China)
Shan-shan Li, Huaiyin Normal Univ. (China)

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