April 2011
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Month April 2011

Complex photonic graphene: Optical tachyons, strain, and PT-symmetry

Alexander Szameit, Mikael C. Rechtsman, Omri Bahat-Treidel, Mordechai Segev

We apply gain/loss to honeycomb photonic lattices and demonstrate that optical tachyons, a photonic version of particles that travel faster than the speed of light, can be generated by PT-symmetry breaking in this structure. We further show that the PT-symmetry can be restored via strain.

http://arxiv.org/abs/1103.3389
Optics (physics.optics)