• Corpus ID: 119395008

Geodesic conformal transformation optics: manipulating light with continuous refractive index profile

@article{Xu2018GeodesicCT,
  title={Geodesic conformal transformation optics: manipulating light with continuous refractive index profile},
  author={Lin Xu and Tom'avs Tyc and Huanyang Chen},
  journal={arXiv: Optics},
  year={2018}
}
Conformal transformation optics provides a simple scheme for manipulating light rays with inhomogeneous isotropic dielectrics. However, there is usually discontinuity for refractive index profile at branch cuts of different virtual Riemann sheets, hence compromising the functionalities. To deal with that, we present a special method for conformal transformation optics based on the concept of geodesic lens. The requirement is a continuous refractive index profile of dielectrics, which shows… 

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SHOWING 1-10 OF 39 REFERENCES
Perfect conformal invisible device with feasible refractive indexes
Optical conformal mapping has been used to construct several isotropic devices with novel functionalities. In particular, a conformal cloak could confer omnidirectional invisibility. However, the
Spherical media and geodesic lenses in geometrical optics
This paper presents a general approach to solving the problems of inverse scattering in three-dimensional isotropic media with a spherically symmetric refractive index distribution. It is based on
Logarithm conformal mapping brings the cloaking effect
TLDR
This work proposes two new kinds of logarithm conformal mappings for invisible device designs and proposes a new refractive index distribution of conformal cloak for one of the mappings, which is more feasible for future implementation.
Transforming two-dimensional guided light using nonmagnetic metamaterial waveguides
Almost a decade ago, transformation optics established a geometrical perspective to describe the interaction of light with structured matter, enhancing our understanding and control of light.
Self-Focusing and the Talbot Effect in Conformal Transformation Optics.
TLDR
By using a gradient-index microstructured optical waveguide, this Letter realizes a device of conformal transformation optics (CTO) and demonstrates its self-focusing property for geometry optics and the Talbot effect for wave optics.
Non-Euclidean Cloaking for Light Waves
Non-Euclidean geometry, combined with transformation optics, has recently led to the proposal of an invisibility cloak that avoids optical singularities and can, therefore, work, in principle, in a
Ultratransparent Media and Transformation Optics with Shifted Spatial Dispersions.
By using pure dielectric photonic crystals, we demonstrate the realization of ultratransparent media, which allow near 100% transmission of light for all incident angles and create aberration-free
Transformational plasmon optics.
TLDR
This work shows that the propagation of SPPs can be manipulated in a prescribed manner by careful control of the dielectric material properties adjacent to a metal, providing a practical way for routing light at very small scales.
Conformal cloaks from a function composition
Since the beginning of transformation optics, invisibility cloaks have been attracting lots of attention, most of which however are usually too complex to realize. Here we propose a conformal cloak
First experimental demonstration of an isotropic electromagnetic cloak with strict conformal mapping
TLDR
Microwave near-field measurement shows that the present dielectric approach could be technically extended to the fabrication of other conformal devices at higher frequencies and has a very good cloaking performance and a broad frequency response.
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