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Kvantovaya Elektronika, 2018, Volume 48, Number 4, Pages 372–377 (Mi qe16804)  

This article is cited in 10 scientific papers (total in 10 papers)

Special issue 'Extreme light fields and their interaction with matter'

Path length and spectrum of single-cycle mid-IR light bullets in transparent dielectrics

S. V. Chekalina*, V. O. Kompanetsa, A. E. Dormidonovbc, V. P. Kandidovbc

a Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow
b Faculty of Physics, Lomonosov Moscow State University
c International Laser Center of Moscow State University

Abstract: Filamentation of femtosecond laser radiation with a wavelength of 800–3900 nm and a power slightly exceeding the critical self-focusing power is studied using the spectral method and the method of laser coloration in LiF crystal. It is found that the length of a filament formed in the single-pulse regime increases with increasing excitation wavelength from a few tens of micrometres at 80 nm to hundreds of micrometres at 3900 nm. In the spectral region of anomalous group velocity dispersion, starting from 2600 nm, the initially smooth luminescence profile of the long-lived induced colour centres acquires a periodic structure, demonstrating the formation of a light bullet with a duration of about one cycle of the light field oscillation and a diameter smaller than 10 μm. The path length of such bullets does not exceed 0.5 mm in the singlepulse regime and 2.7 mm in the waveguide regime. A consequence of periodic modulation of the bullet light field in the process of propagation, observed experimentally and confirmed by calculations, is the appearance of sidebands near the excitation wavelength, as well as the appearance of visible spectral components in the supercontinuum radiation, whose angular divergence increases with increasing wavelength.

Keywords: filamentation, femtosecond pulses, anomalous group velocity dispersion, plasma channels, light bullets.

Funding Agency Grant Number
Russian Academy of Sciences - Federal Agency for Scientific Organizations

* Author to whom correspondence should be addressed

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English version:
Quantum Electronics, 2018, 48:4, 372–377

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Received: 16.02.2018

Citation: S. V. Chekalin, V. O. Kompanets, A. E. Dormidonov, V. P. Kandidov, “Path length and spectrum of single-cycle mid-IR light bullets in transparent dielectrics”, Kvantovaya Elektronika, 48:4 (2018), 372–377 [Quantum Electron., 48:4 (2018), 372–377]

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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. Vasilyev E.V., Shlenov S.A., Kandidov V.P., Laser Phys. Lett., 15:11 (2018), 115402  crossref  isi  scopus
    2. Zaloznaya E.D., Kandidov V.P., Dormidonov A.E., Proceedings of Spie, 10833, eds. Matvienko G., Romanovskii O., Spie-Int Soc Optical Engineering, 2018, UNSP 108331X  crossref  isi  scopus
    3. Zaloznaya E.D., Kandidov V.P., Proceedings of Spie, 10770, eds. Bos J., VanEijk A., Hammel S., Spie-Int Soc Optical Engineering, 2018, UNSP 107700Z  crossref  isi  scopus
    4. V S. Chekalin , A. E. Dormidonov, V. O. Kompanets, E. D. Zaloznaya, V. P. Kandidov, J. Opt. Soc. Am. B-Opt. Phys., 36:2 (2019), A43–A53  crossref  isi  scopus
    5. S. V. Chekalin, V. O. Kompanets, A. E. Dormidonov, V. P. Kandidov, Phys. Usp., 62:3 (2019), 282–288  mathnet  crossref  crossref  adsnasa  isi  elib
    6. Quantum Electron., 49:4 (2019), 344–349  mathnet  crossref  isi  elib
    7. A. Marcinkeviciute, V. Jukna, R. Suminas, N. Garejev, G. Tamosauskas, A. Dubietis, Results Phys., 14 (2019), 102396  crossref  isi
    8. S. V. Chekalin, V. O. Kompanets, Opt. Spectrosc., 127:1 (2019), 88–94  crossref  isi  scopus
    9. S. Chekalin, A. Dormidonov, V. Kandidov, V. Kompanets, Opt. Lett., 45:6 (2020), 1511–1514  crossref  isi
    10. E. D. Zaloznaya, A. E. Dormidonov, V. O. Kompanets, S. V. Chekalin, V. P. Kandidov, Pisma v ZhETF, 113:12 (2021), 817–824  mathnet  crossref
  • Квантовая электроника Quantum Electronics
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