Abstract
A new equation for self-focusing of extremely focused short-duration intense pulses is derived using a method that treats diffraction and dispersion to all orders with nonlinearity present, and self-consistently determines the nonlinear derivative terms present in the propagation equation. It generalizes both the previous formulation of linear optical pulse propagation to the nonlinear regime, and the cw nonlinear regime propagation to the pulsed regime by including temporal characteristics of the pulse. We apply the new equation and propagate a tightly focused picosecond pulse in silica and explicitly show the effects of spatial-derivative nonlinear coupling terms.
Original language | English |
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Pages (from-to) | 385-391 |
Number of pages | 7 |
Journal | Optics Communications |
Volume | 210 |
Issue number | 3-6 |
DOIs | |
State | Published - 15 Sep 2002 |
Keywords
- Nonparaxial
- Pulse propagation
- Self-focusing
- Ultrafast
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering