Details
| Original language | English |
|---|---|
| Pages (from-to) | 1313-1318 |
| Number of pages | 6 |
| Journal | Laser physics |
| Volume | 21 |
| Issue number | 7 |
| Publication status | Published - Jul 2011 |
| Externally published | Yes |
Abstract
We numerically analyze filamentary propagation for various media and input pulse parameters and show that temporal self-compression can greatly benefit from refocusing events. Analyzing the dynamical behavior in the second focal spot, it turns out that a dispersive temporal break-up may appear due to the emission of a hyperbolic shock wave from the self-steepened trailing edge of the pulse. This break-up event in the refocus enhances the self-compression capabilities of laser filaments, enabling up to 12-fold temporal compression. Only slightly perturbing the input pulse parameters, we further identify a regime in which refocusing events give rise to extended subdiffractive propagation in a weakly ionized channel.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Instrumentation
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Laser physics, Vol. 21, No. 7, 07.2011, p. 1313-1318.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Modulation instability in filamentary self-compression
AU - Brée, C.
AU - Demircan, A.
AU - Steinmeyer, G.
PY - 2011/7
Y1 - 2011/7
N2 - We numerically analyze filamentary propagation for various media and input pulse parameters and show that temporal self-compression can greatly benefit from refocusing events. Analyzing the dynamical behavior in the second focal spot, it turns out that a dispersive temporal break-up may appear due to the emission of a hyperbolic shock wave from the self-steepened trailing edge of the pulse. This break-up event in the refocus enhances the self-compression capabilities of laser filaments, enabling up to 12-fold temporal compression. Only slightly perturbing the input pulse parameters, we further identify a regime in which refocusing events give rise to extended subdiffractive propagation in a weakly ionized channel.
AB - We numerically analyze filamentary propagation for various media and input pulse parameters and show that temporal self-compression can greatly benefit from refocusing events. Analyzing the dynamical behavior in the second focal spot, it turns out that a dispersive temporal break-up may appear due to the emission of a hyperbolic shock wave from the self-steepened trailing edge of the pulse. This break-up event in the refocus enhances the self-compression capabilities of laser filaments, enabling up to 12-fold temporal compression. Only slightly perturbing the input pulse parameters, we further identify a regime in which refocusing events give rise to extended subdiffractive propagation in a weakly ionized channel.
UR - http://www.scopus.com/inward/record.url?scp=80051587958&partnerID=8YFLogxK
U2 - 10.1134/S1054660X11130044
DO - 10.1134/S1054660X11130044
M3 - Article
AN - SCOPUS:80051587958
VL - 21
SP - 1313
EP - 1318
JO - Laser physics
JF - Laser physics
SN - 1054-660X
IS - 7
ER -