Creating electromagnetic cavities using transformation optics

We investigate the potential of transformation optics for the design of novel electromagnetic cavities. First, we determine the dispersion relation of bound modes in a device performing an arbitrary radial coordinate transformation and we discuss a number of such cavity structures. Subsequently, we...

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Bibliographic Details
Published inNew journal of physics Vol. 14; no. 3; pp. 33007 - 33023
Main Authors Ginis, V, Tassin, P, Danckaert, J, Soukoulis, C M, Veretennicoff, I
Format Journal Article
LanguageEnglish
Published IOP Publishing 06.03.2012
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Summary:We investigate the potential of transformation optics for the design of novel electromagnetic cavities. First, we determine the dispersion relation of bound modes in a device performing an arbitrary radial coordinate transformation and we discuss a number of such cavity structures. Subsequently, we generalize our study to media that implement azimuthal transformations, and show that such transformations can manipulate the azimuthal mode number. Finally, we discuss how the combination of radial and azimuthal coordinate transformations allows for perfect confinement of subwavelength modes inside a cavity consisting of right-handed materials only.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/14/3/033007