Suppressing small-scale self-focusing of high-power femtosecond pulses

Suppressing small-scale self-focusing of high-power femtosecond pulses

It was shown experimentally that for a 65-fs 17-J pulse, the effect of filamentation instability, also known as small-scale self-focusing, is much weaker than that predicted by stationary and nonstationary theoretical models for high B-integral values. Although this discrepancy has been left unexpla...

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Veröffentlicht in:High power laser science and engineering 2023-01, Vol.11, Article e28
Hauptverfasser: Martyanov, Mikhail, Ginzburg, Vladislav, Balakin, Alexey, Skobelev, Sergey, Silin, Dmitry, Kochetkov, Anton, Yakovlev, Ivan, Kuzmin, Alexey, Mironov, Sergey, Shaikin, Ilya, Stukachev, Sergey, Shaykin, Andrey, Khazanov, Efim, Litvak, Alexander
Format: Artikel
Sprache:eng
Schlagworte:
Approximation
B-integral
cubic Kerr nonlinearity
Femtosecond pulses
filamentation instability
high-power femtosecond laser
Lasers
nonlinear post-compression
Optics
Propagation
Simulation
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Zusammenfassung:It was shown experimentally that for a 65-fs 17-J pulse, the effect of filamentation instability, also known as small-scale self-focusing, is much weaker than that predicted by stationary and nonstationary theoretical models for high B-integral values. Although this discrepancy has been left unexplained at the moment, in practice no signs of filamentation may allow a breakthrough in nonlinear pulse post-compression at high laser energy.
ISSN:2095-4719
2052-3289
DOI:10.1017/hpl.2023.20