Low-contrast bandgaps of a planar parabolic spiral lattice
We show that a planar aperiodic lattice, mimicking the appearance of a sunflower, supports photonic bandgaps for weak dielectric contrast. The pattern's high orientational order and spatially uniform modal pitch yields an isotropic Fourier space. A 2D structure of cylinders (ε=2) in air possess...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
2009-09-10.
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| Subjects: | |
| Online Access: | Get fulltext |