Title :
Nonlinear Kerr effect aperiodic Lüneburg lens
Author :
Gao, Hanhong ; Takahashi, Satoshi ; Tian, Lei ; Barbastathis, George
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
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.
Keywords :
Gaussian processes; aberrations; lenses; optical Kerr effect; optical images; Gaussian beam; aberration; aperiodic Luneburg lens; finite conjugate imaging; nonlinear Kerr effect; subwavelength-modulated dielectric nonlinear lens; Finite difference methods; Indexes; Kerr effect; Lenses; Nonlinear optics; Ray tracing; Time domain analysis;
Conference_Titel :
Optical MEMS and Nanophotonics (OPT MEMS), 2010 International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-8926-8
Electronic_ISBN :
978-1-4244-8925-1
DOI :
10.1109/OMEMS.2010.5672124
