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Reversing the direction of space and inverse Doppler effect in positive refraction index media
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. Zhejiang University, China.ORCID iD: 0000-0002-3401-1125
2017 (English)In: European journal of physics, ISSN 0143-0807, E-ISSN 1361-6404, Vol. 38, no 1, article id 014003Article in journal (Refereed) Published
Abstract [en]

A negative refractive index medium, in which all spatial coordinates are reversed (i.e. a left-hand triplet is formed) by a spatial folding transformation, can create many novel electromagnetic phenomena, e.g. backward wave propagation, and inversed Doppler effect (IDE). In this study, we use coordinate rotation transformation to reverse only two spatial coordinates (e.g. x' and y'), while keeping z' unchanged. In this case, some novel phenomena, e.g. radiation-direction-reversing illusions and IDE, can be achieved in a free space region wrapped by the proposed shell without any negative refractive index medium, which is easier for experimental realization and future applications.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2017. Vol. 38, no 1, article id 014003
Keywords [en]
transformation optics, inverse Doppler effect, optical illusion
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-199469DOI: 10.1088/0143-0807/38/1/014003ISI: 000389250000001Scopus ID: 2-s2.0-85007086448OAI: oai:DiVA.org:kth-199469DiVA, id: diva2:1067905
Note

QC 20170123

Available from: 2017-01-23 Created: 2017-01-09 Last updated: 2017-11-29Bibliographically approved

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