Slab lenses formed from nonmagnetic anisotropic media are described. In the case of a uniaxial medium, the requirement is ϵₓₓ>0,ϵzz<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.
No takes yet. Share an insight, caveat, or question.
Dumelow et al. (2005) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: