Aberration-free negative-refractive-index lens - art. no. 071119

被引:12
作者
Chen, JJ
Radu, C
Puri, A [1 ]
机构
[1] Univ New Orleans, Dept Phys, New Orleans, LA 70148 USA
[2] Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA
关键词
D O I
10.1063/1.2174087
中图分类号
O59 [应用物理学];
学科分类号
摘要
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.
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页数:3
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