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Longitudinal profile of luminescent tracks induced by laser filaments in LiF crystal
A.V. Kuznetsov 1, E.F. Martynovich 1

1 Irkutsk Branch of Institute of Laser Physics SB RAS,
Lermontova Str. 130а, Irkutsk, 664033, Russia

 PDF, 644 kB

DOI: 10.18287/2412-6179-CO-1589

Pages: 560-565.

Full text of article: Russian language.

Abstract:
Filamentation of femtosecond laser pulses in a lithium fluoride crystal LiF leads to the formation of luminescent tracks from color centers, such as F2 and F+3 centers. Track formation is used to create optical microstructures in the bulk of a crystal, for example, microwave guides. An increase in the length of the tracks is observed under the action of series of repeated laser pulses. In this work, using numerical simulation, it is shown for the first time that the nonlinearity of the dependence of the observed luminescence intensity of color centers on their concentration plays a role in the visible prolongation of tracks along with other known mechanisms.

Keywords:
luminescence, filamentation, color center, LiF.

Citation:
Kuznetsov AV, Martynovich EF. Longitudinal profile of luminescent tracks induced by laser filaments in LiF crystal. Computer Optics 2025; 49(4): 560-565. DOI: 10.18287/2412-6179-CO-1589.

Acknowledgements:
The research was financially supported by the Ministry of Science and Higher Education of the Russian Federation within the Basic Research Plan of the Russian Academy of Sciences under project # 0243-2021-0004 “Precision Luminescent Methods in Laser Physics and Nanophotonics”.

References:
  1. Baldacchini G. Colored LiF: an optical material for all seasons. J Lumin 2002; 100(1-4): 333-343. DOI: 10.1016/S0022-2313(02)00460-X.
  2. Courrol LC, Samad RE, Gomes L, Ranieri IM, Baldochi SL, Freitas AZ, Vieira Jr ND. Color center production by femtosecond pulse laser irradiation in LiF crystals. Opt Express 2004; 12(2): 288-293. DOI: 10.1364/OPEX.12.000288.
  3. Martynovich EF, Glazunov DS, Grigorova AA, Starchenko AA, Kirpichnikov AV, Trunov VI, Merzlyakov MA, Petrov VV, Pestryakov EV. Highly nonlinear fundamental mechanisms of excitation and coloring of wide-gap crystals by intense femtosecond laser pulses. Opt Spectrosc 2008; 105(3): 348-351. DOI: 10.1134/S0030400X0809004X.
  4. Martynovich EF, Kuznetsov AV, Kirpichnikov AV, Pestryakov EV, Bagayev SN. Formation of luminescent emitters by intense laser radiation in transparent media. Quantum Electron 2013; 43(5): 463-466. DOI: 10.1070/QE2013v043n05ABEH015117.
  5. Gao S, Duan Y-Z, Tian Z-N, Zhang Y-L, Chen Q-D, Gao B-R, Sun H-B. Laser-induced color centers in crystals. Opt Laser Technol 2022; 146: 107527. DOI: 10.1016/j.optlastec.2021.107527.
  6. Couairon A, Mysyrowicz A. Femtosecond filamentation in transparent media. Phys Rep 2007; 441(2-4): 47-189. DOI: 10.1016/j.physrep.2006.12.005.
  7. Baldacchini G, Menchini F, Montereali RM. Concentration quenching of the emission of F+3 and F2 color centers in LiF. Radiat Eff Defect S 2001; 155(1-4): 71-75. DOI: 10.1080/10420150108214095.
  8. Baldacchini G, Menchini F, Montereali RM. Concentration quenching of photoluminescence: The case of F+3 and F2 color centers in LiF. J Electrochem Soc 2003; 150(5): H124. DOI: 10.1149/1.1566964.
  9. Chekalin SV, Kompanets VO, Dormidonov AE, Kandidov VP. Influence of induced colour centres on the frequency–angular spectrum of a light bullet of mid-IR radiation in lithium fluoride. Quantum Electron 2017; 47(3): 259-265. DOI: 10.1070/QEL16285.
  10. Chekalin S, Kompanets V, Dormidonov A, Kandidov V. Path length and spectrum of single-cycle mid-IR light bullets in transparent dielectrics. Quantum Electron 2018; 48(4): 372-377. DOI: 10.1070/QEL16644.
  11. Chekalin S, Kompanets V. A method of laser coloration in experiments on filamentation of individual impulses and the formation of a light bullet in a homogeneous transparent dielectrics. Opt Spectrosc 2019; 127(1): 88-94. DOI: 10.1134/S0030400X19070051.
  12. Brodeur A, Chin SL. Band-gap dependence of the ultrafast white-light continuum. Phys Rev Lett 1998; 80(20): 4406-4409. DOI: 10.1103/PhysRevLett.80.4406.
  13. Bespalov VI, Talanov VI. Filamentary structure of light beams in nonlinear liquids. JETP Lett 1966; 3: 307-309.
  14. Kuznetsov A, Dormidonov A, Kompanets V, Chekalin S, Kandidov V. Formation of a waveguide in a LiF crystal by a mid-IR light bullet. Quantum Electron 2021; 51(8): 670-678. DOI: 10.1070/QEL17594.
  15. Keldysh LV. Ionization in the field of a strong electromagnetic wave. JETP 1965; 20(5): 1307-1314.

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