K. Güven; "Transformation Optics: Now you seen, now you don't", Oct. 7, 13:40, G032
  • FENS
  • K. Güven; "Transformation Optics: Now you seen, now you don't", Oct. 7, 13:40, G032

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Faculty of Engineering and Natural Sciences

 

SEMINAR ANNOUNCEMENT

 

 

 

                               

 

 

 

Transformation Optics: Now you see, now you don’t.

 

 

Kaan Güven

 

Department of Physics, Koç  University

 

 

 

 

Transformation optics is a new field of optical and material science and engineering comprising metamaterials, plasmonics and nanophotonics. It deals with the transformation of permittivity and permeability tensors of a medium due to a desired transformation of the coordinate system, such that the Maxwell’s equations preserve their form. By the common essence of all wave propagation phenomena, a sibling field has also emerged which is known as the “transformation acoustics.”

 

Metamaterials are artificially structured media that can respond with designed permittivity and permeability values at a particular frequency band of the electromagnetic spectrum. Their development eventually opened the way to the field of transformation optics.

 

This talk aims to provide a brief introduction to the field of transformation optics by presenting several intriguing examples, such as optical cloaking, illusion optics, and superlenses. An experimental study of a particular cloak structure based on chiral resonant particles will be discussed.

 

 

 

October 7, 2009, 13:40, FENS G032