title: Lissajous singularities.
abstract: Coherent optical Lissajous states are easily created by nonlinear processes such as second-harmonic generation (SHG). Singular properties of such states are discussed and illustrated theoretically with non-phase-matched SHG of an ellipse field containing a C point.
authors.affiliation: Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel. kessler@dave.ph.biu.ac.il
authors.forename: David A
authors.initials: DA
authors.lastname: Kessler
authors.forename: Isaac
authors.initials: I
authors.lastname: Freund