Slab lenses from simple anisotropic media

被引:41
作者
Dumelow, T [1 ]
da Costa, JAP
Freire, VN
机构
[1] Univ Fed Rio Grande do Norte, Dept Fis, BR-59072970 Natal, RN, Brazil
[2] Univ Fed Ceara, Dept Fis, BR-60455900 Fortaleza, Ceara, Brazil
[3] Univ Estado Rio Grande do Norte, Dept Fis, BR-59625620 Mossoro, RN, Brazil
关键词
D O I
10.1103/PhysRevB.72.235115
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Slab lenses formed from nonmagnetic anisotropic media are described. In the case of a uniaxial medium, the requirement is epsilon(xx)>0,epsilon(zz)< 0,z being the uniaxis direction, normal to the front and back optical surfaces of the lens. The properties of the lenses are similar to those of lenses made from a negative index medium. However, they only function in p polarization and the image is not free of aberrations. An example of a suitable medium, applicable to far-infrared frequencies, is a crystal of triglycine sulfate.
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页数:8
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