Abstract
Two-dimensional far-zone focusing lenses are designed using the coordinate transformation approach that feature minimized reflections from the lens boundaries. A flat lens of trapezoidal cross section completely converts incident waves with cylindrical wavefronts into transmitted waves with planar wavefronts. A rectangular lens with reduced non-magnetic material parameters that incorporates a nonlinear coordinate transformation features a significantly reduced amount of reflections compared with the non-magnetic lens based on a linear transformation. The improved reflection performance of each new lens design is verified using a full-wave finite-element analysis and compared with previously reported transformation optical lenses.
Original language | English (US) |
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Pages (from-to) | 7807-7817 |
Number of pages | 11 |
Journal | Optics Express |
Volume | 17 |
Issue number | 10 |
DOIs | |
State | Published - May 11 2009 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics