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Nonlinear Kerr effect aperiodic Lüneburg lens

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4 Author(s)
Hanhong Gao ; Massachusetts Inst. of Technol., Cambridge, MA, USA ; Takahashi, S. ; Lei Tian ; Barbastathis, G.

A subwavelength-modulated dielectric nonlinear Lüneburg lens is proposed and numerically verified. In the linear limit, the structure focuses a plane wave to an ideal geometrical point image. In the presence of Kerr nonlinearity, focal shift to a Gaussian beam input is compensated at a tunable intensity value. Nonlinear Lüneburg lens is also capable of finite conjugate imaging. A modified aperiodic Lüneburg is also proposed to greatly reduce the aberration caused by the Kerr effect.

Published in:

Optical MEMS and Nanophotonics (OPT MEMS), 2010 International Conference on

Date of Conference:

9-12 Aug. 2010

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