Aberration-free negative-refractive-index lens
- 13 February 2006
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 88 (7)
- https://doi.org/10.1063/1.2174087
Abstract
The aberrations of a spherical lens composed of left-handed materials are studied in this letter. Five Seidel aberrations (spherical, coma, astigmatism, field curvature, and distortion) as a function of the refractive index n and shape factor q of the lens are considered. Our numerical calculations show that the negative refractive index gives much larger windows of small values of aberrations than the positive index, which will significantly enhance the flexibility for the design of an optical lens. Two possible regions with optimized aberrations are proposed: n=−1, q=−2.2 and n=−0.81 and q=0.83.This publication has 13 references indexed in Scilit:
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