Fischer, RobertNeshev, DragomirSaltiel, SolomonArie, AdyKrolikowski, WieslawSukhorukov, AndreyKivshar, Yuri2015-12-081605-7422http://hdl.handle.net/1885/36873We study the second-harmonic generation via transversely-matched interaction of two counter-propagating ultra-short pulses in Χ(2) photonic structures with either random ferroelectric domains or annular periodic poling. The profile of the transverse secoKeywords: Ferroelectricity; Ultrashort pulses; Wave propagation; Disordered nonlinear material; Pulse characterization; Harmonic generation Disordered nonlinear material; Pulse characterisation; Transverse second-harmonic generationPulse monitoring based on transverse SHG in periodic and disordered media200810.1117/12.7602802015-12-08