Photonic crystals as optical components
- 1 November 1999
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 75 (18) , 2725-2727
- https://doi.org/10.1063/1.125129
Abstract
Photonic crystals (PCs) have already found numerous applications associated with the photonic band gap. We point out that PCs could be also employed as custom-made optical components in the linear region well below the photonic gap. As an example, we discuss a birefringent PC lens that acts as a polarizing beam splitter. This idea is supported by a precise method of calculation of the optical constants of a transparent two-dimensional (2D) PC. Such a process of homogenization is performed for hexagonal arrays of polymer-based PCs and also for the mammalian cornea. Finally, 2D PCs are classified as optically uniaxial or biaxial.Keywords
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