Enhancing imaging systems using transformation optics.

Opt Express

Center for Metamaterials and Integrated Plasmonics and Department of Electrical and Computer Engineering, Duke University, Box 90291, Durham, NC 27708, USA.

Published: September 2010

AI Article Synopsis

  • The transformation optical technique enhances traditional imaging systems by modifying their refractive and gradient index properties.
  • This approach allows for greater flexibility in design, particularly when detector placement allows for simplifications in wave behavior analysis.
  • Key applications include creating a flattened Maxwell fish-eye lens for improved relay capabilities and optimizing conventional lenses for a wider field of view and reduced optical distortions.

Article Abstract

We apply the transformation optical technique to modify or improve conventional refractive and gradient index optical imaging devices. In particular, when it is known that a detector will terminate the paths of rays over some surface, more freedom is available in the transformation approach, since the wave behavior over a large portion of the domain becomes unimportant. For the analyzed configurations, quasi-conformal and conformal coordinate transformations can be used, leading to simplified constitutive parameter distributions that, in some cases, can be realized with isotropic index; index-only media can be low-loss and have broad bandwidth. We apply a coordinate transformation to flatten a Maxwell fish-eye lens, forming a near-perfect relay lens; and also flatten the focal surface associated with a conventional refractive lens, such that the system exhibits an ultra-wide field-of-view with reduced aberration.

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Source
http://dx.doi.org/10.1364/OE.18.021238DOI Listing

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