A method for the nucleation of a crystal seed is proposed, which consists in the action of a stationary laser beam with an increasing pulse energy, which makes it possible to significantly reduce and stabilize the time of formation of microcrystals. A significant improvement in the homogeneity of crystal structures formed under the action of a focused beam of a femtosecond laser with an elliptical waist cross section in comparison with a conventional Gaussian beam has been demonstrated. It was found by confocal Raman spectroscopy that the obtained crystalline channels consist of LaBGeO5 crystals oriented along the scanning direction by the laser beam
Davis KM, Miura K., Sugimoto NK, Hirao K. Writing waveguides in glass with a femtosecond laser // Optical Society of America. 1996. V. 21. N 21. P. 1729? 1731.
Imai R., Shiozawa M., Shintani T. et al. 100-Layer recording in fused silica for semi permanent data storage // Jpn. J. Appl. Phys. 2015. V. 54. P. 09MC02 (1-5).
Righini GC, Chiappini A. Glass optical waveguides: a review of fabrication techniques // Optical Engineering. 2014. V. 53. Is. 7.P. 071819? 071819.
Komatsu T. Design and control of crystallization in oxide glasses // Journal of Non-Crystalline Solids. 2015. V. 428. P. 156? 175.
Sigaev VN, Lotarev SV, Orlova EV et al. Lanthanum borogermanate glass-based active dielectrics // Journal of non-crystalline solids. 2007. V. 353. Is. 18.P. 1956? 1960.
Sigaev VN, Stefanovich SY, Sarkisov PD et al. Stillwellite glass-ceramics with ferroelectric properties // Materials Science and Engineering. B. 1995. V. 32. Is. 1.P. 17? 23.
Sigaev VN, Sarkisov PD, Pernice P. et al. Surface and bulk stillwellite textures in glasses of the La2O3? B2O3? GeO2 system // Journal of the European Ceramic Society. 2004. V. 24. Is. 6.P. 1063? 1067.
Sigaev VN, Orlova EV, Lotarev SV et al. Influence of alumina on the structure and features of crystallization of lanthanum borogermanate glass // Glass and ceramics. 2006.? 7, p. 10? 14.
? Sigaev VN, Orlova EV, Lotarev SV et al. Structure and crystallization specifics of alumina-bearing lanthanide borogermanate glass // Glass and Ceram. 2006. V. 63. N 5? 6.P. 184? 189.?
Stefanovich S. Yu., Mill B.V., Butashin A.V. Ferroelectricity and phase transitions in stillvellite LaBGeO5 // Crystallography. 1992. T. 37.? 4.S. 965? 970.
Sigaev VN, Alieva EA, Lotarev SV et al. Local crystallization of glass in the La2O3? B2O3? GeO2 system under the action of laser radiation // Glass Physics and Chemistry. 2009. T. 35.? 1.S. 12? 21.
Jain H. Transparent ferroelectric glass-ceramics // Ferroelec-trics. 2004. V. 306. P. 111? 127.
Sigaev VN, Lopatina EV, Sarkisov PD Grain-oriented surface crystallization of lanthanum borosilicate and lanthanum borogermanate glasses // Materials Science and Engineering. B. 1997. V. 48. Is. 3.P. 254? 260.
Stone A., Jain H., Dierolf V. et al. Direct laser-writing of ferroelectric single-crystal waveguide architectures in glass for 3D integrated optics // Scientific reports. 2015. V. 5.
Okhrimchuk A. Femtosecond Fabrication of Waveguides in Ion-Doped Laser Crystals, Coherence and Ultrashort Pulse Laser Emission / Dr. FJ Duarte (Ed.). InTech, 2010. DOI: 10.5772 / 12885.
Stone A., Jain H., Dierolf V. et al. Multilayer aberration correction for depth-independent three-dimensional crystal growth in glass by femtosecond laser heating // JOSA B. 2013. V. 30.Is. 5.P. 1234? 1240.
Lipateva TO, Lotarev SV, Lipatiev AS et al. Formation of crystalline dots and lines in lanthanum borogermanate glass by the low pulse repetition rate femtosecond laser // Proc. SPIE 9450. Photonics, Devices, and Systems VI. 2015. P. 945018.
Dai Y., Ma H., Lu B. et al. Femtosecond laser-induced oriented precipitation of Ba2TiGe2O8 crystals in glass // Optics express. 2008. V. 16. Is. 6.P. 3912? 3917.
Stone A., Sakakura M., Shimotsuma Y. et al. Directionally controlled 3D ferroelectric single crystal growth in LaBGeO5 glass by femtosecond laser irradiation // Optics express. 2009. V. 17. Is. 25. P. 23284? 23289.
Okhrimchuk AG, Mezentsev VK, Schmitz H. et al. Cascaded nonlinear absorption of femtosecond laser pulses in dielectrics // Laser physics. 2009. V. 19. Is. 7.P. 1415? 1422.
The article can be purchased
electronic!
PDF format
700 руб
UDK 666.1:666.266.6
Article type:
Science for glass production
Make a request