Journal
OPTICS EXPRESS
Volume 18, Issue 6, Pages 6089-6096Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.006089
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Funding
- National Natural Science Foundation of China [10702006, 10832002]
- National Basic Research Program of China [2006CB601204]
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Recently, there are emerging demands for isotropic material parameters, arising from the broadband requirement of the functional devices. Since inverse Laplace's equation with sliding boundary condition will determine a quasi-conformal mapping, and a quasi-conformal mapping will minimize the transformation material anisotropy, so in this work, the inverse Laplace's equation with sliding boundary condition is proposed for quasi-isotropic transformation material design. Examples of quasi-isotropic arbitrary carpet cloak and waveguide with arbitrary cross sections are provided to validate the proposed method. The proposed method is very simple compared with other quasi-conformal methods based on grid generation tools. (C) 2010 Optical Society of America
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