Journal
OPTICS EXPRESS
Volume 18, Issue 20, Pages 21238-21251Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.021238
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Funding
- Army Research Office through a Multidisciplinary University Research Initiative (MURI) [W911NF-09-1-0539]
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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. (C)2010 Optical Society of America
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