Abstract
We demonstrate ionic-type photonic lattices consisting of alternating positive and negative lattice potentials akin to those of ionic crystals in solids. A modified geometrical structure factor is developed for describing Bragg scattering in these non-Bravais photonic lattices. We show that lattice reconfiguration leads to incomplete Brillouin zone spectra due to selective band-gap closures. Experimentally, incomplete Brillouin zone spectra and associated Bragg-reflection suppression are observed in such ionic-type lattices optically induced in a bulk nonlinear crystal. Our experimental results agree well with our theoretical analysis.
| Original language | English |
|---|---|
| Article number | 041801 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 81 |
| Issue number | 4 |
| DOIs | |
| State | Published - 9 Apr 2010 |
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