Lecture 7 - Super-lens and Super-prism effects

Lecture 7 - Super-lens and Super-prism effects - Super-lens...

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Super-lens and Super-prism effects H. Kosaka et al, Phys. Rev. B. 58, 10096, 1998 H. Kosaka et al, Appl. Phys. Lett. 74, 1370, 1999
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Snell’s law in terms of a constant frequency circle Example: using constant frequency diagram to derive Snell’s law and the condition for total internal reflection. Snell’s law n 1 = 1 n 2 = 1.5 q 1 2 n 1 sin 1 n 2 sin 2 x y n 2 2 c 2 k x 2 k y 2
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Constant frequency contour in a 2D crystal Luo et al, Phys. Rev. B 65, 201104, 2002; M. Notomi, Phys. Rev. B 62, 10692, 2000 At low frequencies, the constant frequency diagram approaches a circle, the photonic crystal behaves as a uniform dielectric as far as diffraction is concerned With increasing frequencies, the constant frequency contour becomes more complicated, leading to effects including superprism, superlens, negative refraction, and self-collimation. Constant frequency diagram for the first band
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=0.165 2 p c/a P. C. G
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Lecture 7 - Super-lens and Super-prism effects - Super-lens...

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