1,721,151 research outputs found
Optical Nondiffractive and Nondispersive Wave Packets of Hydrodynamic Origin
No full textWe report and discuss novel nondiffractive and nondispersive spatiotemporal localized wave packets propagating in optical cubic nonlinear or Kerr media. In particular, we demonstrate the existence of novel families of dark spatiotemporal soliton solutions of the (2+1)D nonlinear Schrodinger equation (NLSE), derived from the hydrodynamic exact soliton dynamics of the (2+1)D shallow water Kadomtsev-Petviashvili (KP) model, inheriting their complex dynamics and interaction properties
Akhmediev breathers and Peregrine solitary waves in a quadratic medium
No full textI investigate the formation of optical localized nonlinear structures, evolving upon a non-zero background plane wave in a dispersive quadratic medium. I show the existence of quadratic Akhmediev breathers and Peregrine solitary waves in the regime of cascading second-harmonic generation. This finding opens a novel path for the excitation of extreme rogue waves and for the description of modulation instability in quadratic nonlinear optics
La protezione dei lavoratori dai rischi di esposizione ai campi elettromagnetici secondo il D.Lgs 81/2008: un esempio applicativo relativo alle macchine per il trattamento dei metalli
No full text
- …
