Canonical and Singular Propagation of Ultrashort Pulses in a Nonlinear Medium

<table>Self-focusing of a pulse for small normal dispersion (<svg height="11.375" id="M223" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 74.712502 11.375" width="74.712502" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>) when <svg height="11.2625" id="M224" style="vertical-align:-0.273pt" version="1.1" viewbox="0 0 36.174999 11.2625" width="36.174999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>. Compression in the transverse direction is apparent in the back (<svg height="8.125" id="M225" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 8.3374996 8.125" width="8.3374996" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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z" id="x1D70F"></path></g>
</svg> large) of the pulse.</table>

International Journal of Optics

fig3

Figure 3

Figure 3: Canonical and Singular Propagation of Ultrashort Pulses in a Nonlinear Medium 