Beam dynamics in PT symmetric optical lattices
Abbreviated Journal Title
Phys. Rev. Lett.
COMPLEX PERIODIC POTENTIALS; NON-HERMITIAN HAMILTONIANS; EXCESS; QUANTUM-NOISE; REAL; EIGENVALUES; DIFFRACTION; CRYSTALS; SPECTRUM; MODES; LIGHT; Physics, Multidisciplinary
The possibility of parity-time (PT) symmetric periodic potentials is investigated within the context of optics. Beam dynamics in this new type of optical structures is examined in detail for both one- and two-dimensional lattice geometries. It is shown that PT periodic structures can exhibit unique characteristics stemming from the nonorthogonality of the associated Floquet-Bloch modes. Some of these features include double refraction, power oscillations, and eigenfunction unfolding as well as nonreciprocal diffraction patterns.
Physical Review Letters
"Beam dynamics in PT symmetric optical lattices" (2008). Faculty Bibliography 2000s. 678.