Outputs (202)

Helmholtz dark solitons at nonlinear defocusing interfaces (2010)
Presentation / Conference
Sanchez Curto, J., Chamorro-Posada, P., & McDonald, G. (2010, June). Helmholtz dark solitons at nonlinear defocusing interfaces. Presented at Nonlinear Photonics (NP, Karlsruhe, Germany

Dark Kerr soliton refraction at planar boundaries is analysed and simulated for the first time. A universal law of Kerr spatial soliton refraction is derived. Strong parameter sensitivity of gray soliton refraction is also uncovered.

Kaleidoscope lasers - Complexity in simple optical systems (2010)
Presentation / Conference
Christian, J., McDonald, G., & Huang, J. (2010, June). Kaleidoscope lasers - Complexity in simple optical systems. Presented at Nonlinear Photonics (NP), Karlsruhe, Germany

We present the first detailed account of modelling kaleidoscope laser modes where the equivalent Fresnel number Neq and magnification M may assume arbitrary values. The convergence toward circularity is also investigated through extensive numerical c... Read More about Kaleidoscope lasers - Complexity in simple optical systems.

Helmholtz pulse propagation & spatially-dispersive light (2010)
Presentation / Conference
Christian, J., Hodgkinson, T., McDonald, G., & Chamorro-Posada, P. (2010, June). Helmholtz pulse propagation & spatially-dispersive light. Presented at Nonlinear Photonics (NP), Karlsruhe, Germany

We present the first detailed account of modelling pulses in Helmholtz-type nonlinear systems with both temporal and spatial dispersion. Exact analytical solitons will be reported, and their stability examined through mathematical analysis and comput... Read More about Helmholtz pulse propagation & spatially-dispersive light.

Bistable dark solitons of a cubic-quintic Helmholtz equation (2010)
Journal Article
Christian, J., McDonald, G., & Chamorro-Posada, P. (2010). Bistable dark solitons of a cubic-quintic Helmholtz equation. Physical Review A, 81(5), https://doi.org/10.1103/PhysRevA.81.053831

We report, to the best of our knowledge, the first exact analytical bistable dark spatial solitons of a nonlinear Helmholtz equation with a cubic-quintic refractive-index model. Our analysis begins with an investigation of the modulational instabili... Read More about Bistable dark solitons of a cubic-quintic Helmholtz equation.

Bistable dark solitons of a cubic-quintic Helmholtz equation (2010)
Journal Article
Christian, J., McDonald, G., & Chamorro-Posada, P. (2010). Bistable dark solitons of a cubic-quintic Helmholtz equation. Physical Review A, 81(5), https://doi.org/10.1103/PhysRevA.81.053831

We report, to the best of our knowledge, the first exact analytical bistable dark spatial solitons of a nonlinear Helmholtz equation with a cubic-quintic refractive-index model. Our analysis begins with an investigation of the modulational instabili... Read More about Bistable dark solitons of a cubic-quintic Helmholtz equation.

Dark solitons at nonlinear interfaces (2010)
Journal Article
Sanchez-Curto, J., Chamorro-Posada, P., & McDonald, G. (2010). Dark solitons at nonlinear interfaces. Optics Letters, 35(9), 1347-1349. https://doi.org/10.1364/OL.35.001347

The refraction of dark solitons at a planar boundary separating two defocusing Kerr media is simulated and analyzed, for the first time (to our knowledge). Analysis is based on the nonlinear Helmholtz equation and is thus valid for any angle of incid... Read More about Dark solitons at nonlinear interfaces.

Helmholtz algebraic solitons (2010)
Journal Article
Christian, J., McDonald, G., & Chamorro-Posada, P. (2010). Helmholtz algebraic solitons. Journal of Physics A: Mathematical and Theoretical, 43(8), https://doi.org/10.1088/1751-8113/43/8/085212

We report, to the best of our knowledge, the first exact analytical algebraic solitons of a generalized cubic-quintic Helmholtz equation. This class of governing equation plays a key role in photonics modelling, allowing a full description of the pr... Read More about Helmholtz algebraic solitons.

Helmholtz algebraic solitons (2010)
Journal Article
Christian, J., McDonald, G., & Chamorro-Posada, P. (2010). Helmholtz algebraic solitons. Journal of Physics A: Mathematical and Theoretical, 43(8), https://doi.org/10.1088/1751-8113/43/8/085212

We report, to the best of our knowledge, the first exact analytical algebraic solitons of a generalized cubic-quintic Helmholtz equation. This class of governing equation plays a key role in photonics modelling, allowing a full description of the pr... Read More about Helmholtz algebraic solitons.

Bistable Helmholtz bright solitons in saturable materials (2009)
Journal Article
Christian, J., McDonald, G., & Chamorro-Posada, P. (2009). Bistable Helmholtz bright solitons in saturable materials. Journal of the Optical Society of America B, 26(12), 2323-2330. https://doi.org/10.1364/JOSAB.26.002323

We present, to the best of our knowledge, the first exact analytical solitons of a nonlinear Helmholtz equation with a saturable refractive-index model. These new two-dimensional spatial solitons have a bistable characteristic in some parameter regim... Read More about Bistable Helmholtz bright solitons in saturable materials.

Nonlinear interfaces: intrinsically nonparaxial regimes and effects (2009)
Journal Article
Sánchez-Curto, J., Chamorro-Posada, P., & McDonald, G. (2009). Nonlinear interfaces: intrinsically nonparaxial regimes and effects. Journal of Optics A: Pure and Applied Optics, 11(5), 054015. https://doi.org/10.1088/1464-4258/11/5/054015

The behaviour of optical solitons at planar nonlinear boundaries is a problem rich in intrinsically nonparaxial regimes that cannot be fully addressed by theories based on the nonlinear Schrödinger equation. For instance, large propagation angles are... Read More about Nonlinear interfaces: intrinsically nonparaxial regimes and effects.