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This article is cited in 4 scientific papers (total in 4 papers)
Interaction of laser radiation with matter. Laser plasma
Specific features of direct formation of graphite-like microstructures in polycarbonate samples by single femtosecond laser pulses
D. V. Ganinab, K. E. Lapshina, A. Z. Obidina, S. K. Vartapetova a Physics Instrumentation Center, A. M. Prokhorov General Physics Institute, Troitsk, Moscow region
b Moscow Engineering Physics Institute (National Nuclear Research University)
Abstract:
We present the result of the experiments on producing graphite-like cylindrical microstructures by focusing single femtosecond laser pulses into the bulk of a transparent polymer (polycarbonate). The microstructures are embedded in a cladding with a modified refractive index, possessing waveguide properties. In the experiments with nontransparent screens and diaphragms, placed in the laser beam in front of the entrance pupil of the objective with a large numerical aperture, we have found that the paraxial rays are blocked by the peripheral ones, which reduces the length of the destruction region in the pre-focal zone. In the experiments with transparent screens and diaphragms, introducing optical delays τd between the paraxial and peripheral rays, the quantitative dependence of the destruction region length in the pre-focal zone on the value of τd is determined.
Keywords:
femtosecond laser pulse, microstructures, filamentation, interaction of femtosecond pulses with transparent dielectrics, photodestruction, focusing into the material bulk, graphitization.
Received: 27.03.2015 Revised: 15.06.2015
Citation:
D. V. Ganin, K. E. Lapshin, A. Z. Obidin, S. K. Vartapetov, “Specific features of direct formation of graphite-like microstructures in polycarbonate samples by single femtosecond laser pulses”, Kvantovaya Elektronika, 45:11 (2015), 1029–1036 [Quantum Electron., 45:11 (2015), 1029–1036]
Linking options:
https://www.mathnet.ru/eng/qe16272 https://www.mathnet.ru/eng/qe/v45/i11/p1029
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