Output details

Helmholtz bright and black soliton splitting at nonlinear interfaces

Material interfaces: a fundamental light-material interaction consideration, central to technological designs. Our paper series established a new, simple universal refraction law. But, what of high-power beam (or large-step interface) contexts – where breakup into many different beams is common? This paper, first full-angular modelling of these contexts, verifies that our refraction law still plays a central predictive role for both focusing/defocusing interfaces. Standard/previous theory proved inadequate, even in small-angle regime (where presumed correct), thus also significant implications for multi-interface contexts (eg waveguide arrays) and different light-polarisation and alternative-material contexts. Hence, many further studies (of such contexts) need still to be undertaken.