Hints on Refraction
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چکیده
This is an excellent little guide to sight testing by Dr. S. K. G-anguly, Assistant at the Eye Infirmary of the Medical College, Calcutta. It is a very practical little book?concise, correct, and clear. Each section or chapter is devoted to description with methods of procedure and illustrative examples. The difficult subject of astigmatism is clearly explained, and the methods for correction detailed and examples given.
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Refraction at the Interface of a Lossy Metamaterial
The refraction phenomenon at the interface of an ordinary material and a lossy metamaterial has been investigated. For oblique incidence on the lossy metamaterial, the planes of constant amplitude of the refracted wave are parallel to the interface and the plane of constant phases make a real angle with the interface (real refraction angle). The real refraction angle and hence, the real refract...
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