Dispersion relations and band gaps in wave number or frequency in the linear and nonlinear regimes for a coupled system with no paraxial approximation
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Dispersion relations and band gaps in wave number or frequency in the linear and nonlinear regimes for a coupled system with no paraxial approximation |
| Type de publication | Conference Paper |
| Year of Publication | 2018 |
| Auteurs | Kumar M, Porsezian K., Nithyanandan K. |
| Conference Name | 62ND DAE SOLID STATE PHYSICS SYMPOSIUM |
| Publisher | Dept Atom Energy; Board Res Nucl Sci, Dept Atom Energy; Bhabha Atom Res Ctr |
| Conference Location | 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA |
| ISBN Number | 978-0-7354-1634-5 |
| Résumé | We study the linear and nonlinear pulse propagation models whose dispersion relations presents bands of forbidden frequencies or forbidden wave numbers. These bands are due to the interplay between dispersion and longitudinal and transverse diffractions as a result of abandoning the paraxial approximation. We observe that as a result of these band gaps, narrow pulses radiate in some peculiar way. The role of each parameter on the band gap also has been studied. |
| DOI | 10.1063/1.5029036 |