title: Diverging rabi oscillations in subwavelength photonic lattices.
abstract: We show that Rabi oscillations between Bloch modes of an optical waveguide array with subwavelength periodicity diverge, both in frequency and in field amplitude, when the optical wavelength approaches a mathematical exceptional point at which the Bloch mode becomes self-orthogonal.
authors.affiliation: Physics Department and Solid State Institute, Technion, Haifa, Israel.
authors.forename: Barak
authors.initials: B
authors.lastname: Alfassi
authors.forename: Or
authors.initials: O
authors.lastname: Peleg
authors.forename: Nimrod
authors.initials: N
authors.lastname: Moiseyev
authors.forename: Mordechai
authors.initials: M
authors.lastname: Segev