title: Pancharatnam-Berry phase of optical systems.
abstract: We present simple closed-form expressions for evaluating the overall and the Pancharatnam-Berry phase introduced by an optical system with either orthogonal or nonorthogonal eigenpolarizations. The formulas provide a meaningful connection with the Pancharatnam-Berry phase associated with nonclosed paths on the Poincaré sphere.
authors.affiliation: Photonics and Mathematical Optics Group, Tecnológico de Monterrey, Monterrey, Mexico 64849. juliocesar@itesm.mx
authors.forename: Julio C
authors.initials: JC
authors.lastname: Gutiérrez-Vega