Vol. 29, issue 12, article # 3
Geints Yu. E., Zemlyanov A. A., Ionin A. A., Mokrousova D. V., Seleznev L. V., Sunchugasheva E. S. Study of characteristics of intense light channels at postfilamentation stage of evolution of ultrashort laser radiation. // Optika Atmosfery i Okeana. 2016. V. 29. No. 12. P. 1023–1028. DOI: 10.15372/AOO20161203 [in Russian].Copy the reference to clipboard
Abstract:
We present the results of our experimental and numerical studies of the multifilamentation of high-intensive pulse titanium-sapphire laser radiation (740 nm) in air. The postfilamentation stage of pulse propagation as specific spatially localized light structures is investigated. The angular divergence of postfilamentation channels is studied under different initial laser beam focusing. The threshold distance for the re-filamentation of postfilamentation channels in a glass plate is measured.
Keywords:
ultrashort laser radiation, self-focusing, filamentation, postfilamentation self-channeling
References:
1. Self-focusing: Past and Present / R.W. Boyd, S.G. Lukishova, Y.R. Shen. Netherlands: Springer Science, Business Media, LLC, 2009. 605 p.
2. Chekalin S.V., Kandidov V.P. Ot samofokusirovki svetovyh puchkov k filamentacii lazernyh impul'sov // Uspehi fiz. nauk. 2013. V. 183, N 2. P. 133–152.
3. Méchain G., Couairon A., André Y.-B., D’Amico C., Franco M., Prade B., Tzortzakis S., Mysyrowicz A., Sauerbrey R. Long-range self-channeling of infrared laser pulses in air: a new propagation regime without ionization // Appl. Phys. B. 2004. V. 79, iss. 3. P. 379–382.
4. Daigle J.-F., Kosareva O., Panov N., Wang T.-J., Hosseini S., Yuan S., Roy G., Chin S.L. Formation and evolution of intense, post-filamentation, ionization-free low divergence beams // Opt. Commun. 2011. V. 284, iss. 14. P. 3601–3606.
5. Zheltikov A., Mitrofanov A., Voronin A., Sidorov-Biryukov D., Fedotov A., Baltuska A., Pugzlys A., Flöry T., Andriukaitis G., Panchenko V., Mikhailova J. Post-filament self-trapping of ultrashort laser pulses // Opt. Lett. 2014. V. 39, iss. 16. P. 4659–4662.
6. Gejnc Ju.Je., Apeksimov D.V., Afonasenko A.V. Programmno-vychislitel'nyj kompleks dlja analiza poperechnyh profilej lazernyh puchkov (profilometr) // Svidetel'stvo o gosudarstvennoj registracii programmy dlja JeVM N2014616871 ot 07.07.2014. Pravoobladatel': IOA SO RAN (RU).
7. Zemljanov A.A., Bulygin A.D., Gejnc Ju.Je., Minina O.V. Dinamika svetovyh struktur pri filamentacii femtosekundnyh lazernyh impul'sov v vozduhe // Optika atmosf. i okeana. 2016. V. 29, N 5. P. 359–368; Zemlyanov A.A., Bulygin A.D., Geints Yu.E., Minina O.V. Dynamics of light structures during filamentation of femtosecond laser pulses in air // Atmos. Ocean. Opt. 2016. V. 29, N 5. P. 395–403.
8. Champeaux S., Bergé L. Postionization regimes of femtosecond laser pulses self-channeling in air // Phys. Rev. E. 2005. V. 71. 046604.
9. Gejnc Ju.Je., Golik S.S., Zemljanov A.A., Kabanov A.M., Petrov A.V. Mikrostruktura oblasti mnozhestvennoj filamentacii femtosekundnogo lazernogo izluchenija v tverdom dijelektrike // Kvant. jelektron. 2016. V. 46, N 2, P. 133–141.
10. Gejnc Ju.Je., Zemljanov A.A., Kabanov A.M., Matvienko G.G., Stepanov A.N. Formirovanie filamenta femtosekundnogo lazernogo impul'sa v vozduhe posle fokusa opticheskoj sistemy // Optika atmosf. i okeana. 2012. V. 25, N 9. P. 745–752; Geints Yu.E., Zemlyanov A.A., Kabanov A.M., Matvienko G.G., Stepanov A.N. Filament formation beyond linear focus during femtosecond laser pulse propagation in air // Atmos. Ocean. Opt. 2013. V. 26, N 2. P. 96–103.
11. Vlasov S.N., Talanov V.I. Samofokusirovka voln. N. Novgorod: IPF RAN, 1997. 220 p.