title: Observation of photorefractive simultons in lithium niobate.
abstract: Spatial and temporal locking of fundamental and second harmonic pulses was realized by means of photorefractive nonlinearity and highly mismatched harmonic generation. Due to the presence of both phase-locked and unlocked second harmonic pulses, a twin simultonic state was observed. Simultonic filamentation occurring at high pumping rates allowed us to determine a relation between the simulton's waist and its intensity.
authors.affiliation: Ultrafast Photonics Laboratory, Dipartimento di Energetica and CNISM, Sapienza Università Roma, via Scarpa 16, I-00161 Roma Italy. eugenio.fazio@uniroma1.it
authors.forename: Eugenio
authors.initials: E
authors.lastname: Fazio
authors.forename: Alessandro
authors.initials: A
authors.lastname: Belardini
authors.forename: Massimo
authors.initials: M
authors.lastname: Alonzo
authors.forename: Marco
authors.initials: M
authors.lastname: Centini
authors.forename: Mathieu
authors.initials: M
authors.lastname: Chauvet
authors.forename: Fabrice
authors.initials: F
authors.lastname: Devaux
authors.forename: Michael
authors.initials: M
authors.lastname: Scalora