Femtosecond pulse self-shortening in Kerr media: role of modulational instability in the spectrum formation
Journal Article
·
· Quantum Electronics (Woodbury, N.Y.)
The mechanism of femtosecond pulse self-shortening in thin optical materials with Kerr nonlinearity is investigated. The experimentally observed spectral-angular distribution of the radiation intensity on the exit surface of a 1-mm-thick fused silica sample is compared with the results of numerical simulation based on solving the nonlinear Schrödinger equation for an electromagnetic wave with a transverse perturbation on the axis. Qualitative agreement between the calculated and experimental results confirms the hypothesis about the transient regime of multiple filamentation as a mechanism of femtosecond pulse self-shortening. (paper)
- OSTI ID:
- 23000246
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 4 Vol. 48; ISSN 1063-7818; ISSN QUELEZ
- Country of Publication:
- United States
- Language:
- English
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