title: Frequency doubling of low power images using a self-imaging cavity.
abstract: A self-imaging resonator can be simultaneously resonant for many transverse modes and therefore allows cavity build-up for images of various shapes. The stability properties of such a cavity are reviewed. We have used this device for the first time to enhance the efficiency of second harmonic generation of weak images. We characterize the global and local efficiency of the second harmonic generation, and discuss its limitation due to the spatial bandwidth of the cavity and the diffraction along the crystal length.
authors.affiliation: Laboratoire Kastler Brossel, Université Pierre et Marie Curie, ENS, CNRS 4 place Jussieu, 75005 Paris, France. chalopin@spectro.jussieu.fr
authors.forename: Benoît
authors.initials: B
authors.lastname: Chalopin
authors.forename: Antonino
authors.initials: A
authors.lastname: Chiummo
authors.forename: Claude
authors.initials: C
authors.lastname: Fabre
authors.forename: Agnès
authors.initials: A
authors.lastname: Maître
authors.forename: Nicolas
authors.initials: N
authors.lastname: Treps