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13 - Electrical and Electronic Engineering, Metallurgy and Materials
University of Salford
Dark solitons at nonlinear interfaces
Semiconductor-laser, photonic-crystal and waveguide-array developments exemplify technologically-fundamental and underpinning character of this new understanding of laser-beam material-interface refraction. Stable-beam refraction for defocusing-interfaces is a qualitatively-new prediction (previous theories restricted to very-narrow-angle unstable regime). Complementary to [1], this contributes first quantification of all-angle self-collimated-beam-refraction - here, defocusing-boundary considerations encompassed within a unified [1] simple law. Application of this law already enabled: i) another's EPSRC funding (EP/H011595/1, verifying law's potential to unify previously-separate research fields (photonic-crystals/waveguide-arrays) for new arbitrary-angle, optical-device architectures; ii) our JOptA +OptLett +2xPRA Kerr-material further developments; iii) wider-material-class validity verification (eg 'Waves', Vancouver-2011). [1] OPT LETT 32 (2007) 1126.
