Effect of Spatial Modulation on Pulse Width for Ultrashort Laser Pulse during Small-Scale Self-Focusing

DOI

10.2991/ipemec-15.2015.155How to use a DOI?

Keywords

ultrashort laser pulse; small-scale self-focusing; growth point; pulse width.

Abstract

Small-scale self-focusing (SSSF) causes the distribution of spatial intensity to become asymmetrical. Spatial distribution would generate new growth point during SSSF. We measure the spatial-temporal evolution for ultrashort laser pulse with different truncation parameter of knife-edge during SSSF. Our results show that the new growth point is increasingly far away from center of beam and its intensity increases with decrease of truncation parameter. Meanwhile, the pulse width at the growth point becomes narrower. We find that our experimental results are in good agreement with an approximate theoretical analysis.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Nian Wang
AU  - Xiquan Fu
PY  - 2015/05
DA  - 2015/05
TI  - Effect of Spatial Modulation on Pulse Width for Ultrashort Laser Pulse during Small-Scale Self-Focusing
BT  - Proceedings of the 2015 International Power, Electronics and Materials Engineering Conference
PB  - Atlantis Press
SP  - 835
EP  - 842
SN  - 2352-5401
UR  - https://doi.org/10.2991/ipemec-15.2015.155
DO  - 10.2991/ipemec-15.2015.155
ID  - Wang2015/05
ER  -