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**Harvard**

Ginis, V. och Tassin, P. (2015) *Transformation optics beyond the manipulation of light trajectories*.

** BibTeX **

@article{

Ginis2015,

author={Ginis, V. and Tassin, Philippe},

title={Transformation optics beyond the manipulation of light trajectories},

journal={Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences},

issn={1364-503X},

volume={373},

issue={2049},

abstract={Since its inception in 2006, transformation optics has become an established tool to understand and design electromagnetic systems. It provides a geometrical perspective into the properties of light waves without the need for a ray approximation. Most studies have focused on modifying the trajectories of light rays, e.g. beam benders, lenses, invisibility cloaks, etc. In this contribution, we explore transformation optics beyond the manipulation of light trajectories. With a few well-chosen examples, we demonstrate that transformation optics can be used to manipulate electromagnetic fields up to an unprecedented level. In the first example, we introduce an electromagnetic cavity that allows for deep subwavelength confinement of light. The cavity is designed with transformation optics even though the concept of trajectory ceases to have any meaning in a structure as small as this cavity. In the second example, we show that the properties of Cherenkov light emitted in a transformationoptical material can be understood and modified from simple geometric considerations. Finally, we show that optical forces-a quadratic function of the fields-follow the rules of transformation optics too. By applying a folded coordinate transformation to a pair of waveguides, optical forces can be enhanced just as if the waveguides were closer together. With these examples, we open up an entirely new spectrum of devices that can be conceived using transformation optics.},

year={2015},

keywords={Cherenkov radiation, Optical force, Subwavelength cavity, Transformation optics },

}

** RefWorks **

RT Journal Article

SR Electronic

ID 221133

A1 Ginis, V.

A1 Tassin, Philippe

T1 Transformation optics beyond the manipulation of light trajectories

YR 2015

JF Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

SN 1364-503X

VO 373

IS 2049

AB Since its inception in 2006, transformation optics has become an established tool to understand and design electromagnetic systems. It provides a geometrical perspective into the properties of light waves without the need for a ray approximation. Most studies have focused on modifying the trajectories of light rays, e.g. beam benders, lenses, invisibility cloaks, etc. In this contribution, we explore transformation optics beyond the manipulation of light trajectories. With a few well-chosen examples, we demonstrate that transformation optics can be used to manipulate electromagnetic fields up to an unprecedented level. In the first example, we introduce an electromagnetic cavity that allows for deep subwavelength confinement of light. The cavity is designed with transformation optics even though the concept of trajectory ceases to have any meaning in a structure as small as this cavity. In the second example, we show that the properties of Cherenkov light emitted in a transformationoptical material can be understood and modified from simple geometric considerations. Finally, we show that optical forces-a quadratic function of the fields-follow the rules of transformation optics too. By applying a folded coordinate transformation to a pair of waveguides, optical forces can be enhanced just as if the waveguides were closer together. With these examples, we open up an entirely new spectrum of devices that can be conceived using transformation optics.

LA eng

DO 10.1098/rsta.2014.0361

LK http://dx.doi.org/10.1098/rsta.2014.0361

OL 30