Next Article in Journal
Cascaded Generation in Multimode Diode-Pumped Graded-Index Fiber Raman Lasers
Previous Article in Journal
Topological Charge and Asymptotic Phase Invariants of Vortex Laser Beams
Previous Article in Special Issue
Optical Solitons and Vortices in Fractional Media: A Mini-Review of Recent Results
Communication

Tracing Evolution of Angle-Wavelength Spectrum along the 40-m Postfilament in Corridor Air

1
P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Prospect, 119991 Moscow, Russia
2
V. E. Zuev Institute of Atmospheric Optics SB RAS, 1 Academician Zuev Square, 634055 Tomsk, Russia
3
Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia
4
CPHT, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, F-91128 Palaiseau, France
5
LOA, ENSTA Paris, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 828 Bd des Maréchaux, F-91762 Palaiseau, France
6
Department of Physics, University of Bath, Bath BA2 7AY, UK
*
Author to whom correspondence should be addressed.
Photonics 2021, 8(10), 446; https://doi.org/10.3390/photonics8100446
Received: 12 September 2021 / Revised: 3 October 2021 / Accepted: 11 October 2021 / Published: 15 October 2021
(This article belongs to the Special Issue Optical Solitons: Current Status)
Postfilamentation channel resulting from filamentation of freely propagating 744-nm, 5-mJ, 110-fs pulse in the corridor air is examined experimentally and in simulations. The longitudinal extension of postfilament was determined to be 55–95 m from the compressor output. Using single-shot angle-wavelength spectra measurements, we observed a series of red-shifted maxima in the spectrum, localized on the beam axis with the divergence below 0.5 mrad. In the range 55–70 m, the number of maxima and their red-shift increase with the distance reaching 1 μm, while the pulse duration measured by the autocorrelation technique is approximately constant. Further on, for distances larger than 70 m and up to 95 m, the propagation is characterized by the suppressed beam divergence and unchanged pulse spectrum. The pulse duration increases due to the normal air dispersion. View Full-Text
Keywords: femtosecond filamentation; postfilament; angle-wavelength spectrum; pulse autocorrelation function femtosecond filamentation; postfilament; angle-wavelength spectrum; pulse autocorrelation function
Show Figures

Figure 1

MDPI and ACS Style

Mokrousova, D.V.; Pushkarev, D.V.; Panov, N.A.; Nikolaeva, I.A.; Shipilo, D.E.; Zhidovtsev, N.A.; Rizaev, G.E.; Uryupina, D.S.; Couairon, A.; Houard, A.; Skryabin, D.V.; Savel’ev, A.B.; Kosareva, O.G.; Seleznev, L.V.; Ionin, A.A. Tracing Evolution of Angle-Wavelength Spectrum along the 40-m Postfilament in Corridor Air. Photonics 2021, 8, 446. https://doi.org/10.3390/photonics8100446

AMA Style

Mokrousova DV, Pushkarev DV, Panov NA, Nikolaeva IA, Shipilo DE, Zhidovtsev NA, Rizaev GE, Uryupina DS, Couairon A, Houard A, Skryabin DV, Savel’ev AB, Kosareva OG, Seleznev LV, Ionin AA. Tracing Evolution of Angle-Wavelength Spectrum along the 40-m Postfilament in Corridor Air. Photonics. 2021; 8(10):446. https://doi.org/10.3390/photonics8100446

Chicago/Turabian Style

Mokrousova, Daria V., Dmitrii V. Pushkarev, Nikolay A. Panov, Irina A. Nikolaeva, Daniil E. Shipilo, Nikita A. Zhidovtsev, Georgy E. Rizaev, Daria S. Uryupina, Arnaud Couairon, Aurélien Houard, Dmitry V. Skryabin, Andrey B. Savel’ev, Olga G. Kosareva, Leonid V. Seleznev, and Andrey A. Ionin. 2021. "Tracing Evolution of Angle-Wavelength Spectrum along the 40-m Postfilament in Corridor Air" Photonics 8, no. 10: 446. https://doi.org/10.3390/photonics8100446

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop