title: Theoretical and experimental investigation of generating pulsed Bessel-Gauss beams by using an axicon-based resonator.
abstract: Nondiffracting Bessel-Gauss beams are assumed as the superposition of infinite numbers of Gaussian beams whose wave vectors lie on a cone. Based on such a description, different methods are suggested to generate these fields. In this paper, we followed an active scheme to generate these beams. By introducing an axicon-based resonator, we designed the appropriate resonator, studied its resonance modes, and analyzed the beam propagation outside the resonator. Experimentally, we succeeded to obtain Bessel-Gauss beams of the first kind and zero order. We also investigated the changes in effective parameters on the output beam, both theoretically and experimentally.
authors.affiliation: Department of Physics, University of Isfahan, Isfahan, Iran.
authors.forename: Shahrzad
authors.initials: S
authors.lastname: Parsa
authors.forename: Hamid Reza
authors.initials: HR
authors.lastname: Fallah
authors.forename: Mohsen
authors.initials: M
authors.lastname: Ramezani
authors.forename: Mahmood
authors.initials: M
authors.lastname: Soltanolkotabi