Abstract

By adopting the multi-folded linear transformation optics method and its corresponding numerical techniques, we introduce a method to design an open cloak that has windows to exchange matter with the outer world. Compared with conventional remote cloaks based on inhomogeneous materials, in this paper, the inhomogeneity of materials is removed and cloaking functionality can be achieved by anisotropic properties. Based on this, open-illusion devices for both active and passive scatterers have been investigated to make any emitter or object look like another pre-defined emitter or object, respectively. The proposed devices have perfect performance with an object-independent feature for moving objects in particular. The proposed devices will open up possibilities and be useful for practical implementations of the cloak and illusion optics technologies that were recently developed.

© 2018 Optical Society of America

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