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  1. No Access

    Article

    Experimental studies of emission of highly charged Au-ions and of X-rays from the laser-produced plasma at high laser intensities

    Au ions with maximum charge states 58+ and with the kinetic energy in a region of ∼100 MeV were recorded. The influence of various experimental conditions is presented and discussed.

    L. Láska, S. Cavallaro, K. Jungwirth, J. Krása… in The European Physical Journal D (2009)

  2. No Access

    Article

    Experimental studies of interaction of intense long laser pulse with a laser-created Ta plasma

    Characteristics of ions, emitted from the laser produced plasma, were systematically investigated using high power iodine laser system PALS, operating at 3ω. A Ta target was irradiated perpendicularly with laser ...

    L. Láska, K. Jungwirth, J. Krása, E. Krouský, M. Pfeifer… in Czechoslovak Journal of Physics (2006)

  3. No Access

    Article

    Studies of the laser-created craters produced on solid surfaces at various experimental conditions

    Results on target ablation and crater formation at low and high laser intensities (at 5 × 109 W/cm2 with Nd:YAG laser in Catania and 3 × 1016 W/cm2 with iodine laser PALS in Prague) are compared. Attention is pai...

    D. Margarone, L. Torrisi, S. Gammino, J. Krása… in Czechoslovak Journal of Physics (2006)

  4. No Access

    Article

    Interferometric investigation of an early stage of plasma expansion with the high-power laser system PALS

    The results of interferometric investigation of early stage of plasma expansion carried out in the high-power laser system PALS are presented. The plasma was generated on planar solid Al and Mo targets, irradi...

    A. Kasperczuk, P. Pisarczyk, T. Pisarczyk, B. Králiková… in Czechoslovak Journal of Physics (2002)

  5. No Access

    Article

    Laser induced direct implantation of ions

    Results on iodine laser production of Ag, Au, Pb, Sn and Ta ions are presented and experiments on their implantation into steel, Al and plastics are compared and discussed. Ions were implanted without addition...

    L. Láska, L. Juha, J. Krása, K. Mašek, M. Pfeifer… in Czechoslovak Journal of Physics (2000)

  6. No Access

    Article

    Laser plasma X-ray measurements using thermoluminescent dosimeters and Si photodiodes

    The energy of X-rays emitted from laser-produced aluminium plasmas is presented. For absolute time-integrated X-ray measurements thermoluminescent dosimeters LiF:Mg,Cu,P (GR 200A), LiF:Mg,Ti (TLD 100), CaF2:Dy (T...

    M. Fárníková, J. Krása, B. Králiková, J. Skála, P. Parys… in Czechoslovak Journal of Physics (1998)

  7. No Access

    Article

    Iodine laser production of highly charged Ta ions

    The results of systematic studies of multiply charged Ta ion production with the fundamental frequency of an iodine laser (λ=1.315μm), and its 2nd (0.657μm) and 3rd (0.438μm) harmonics are summarized and discusse...

    L. Láska, J. Krása, K. Mašek, M. Pfeifer, B. Králiková… in Czechoslovak Journal of Physics (1996)

  8. No Access

    Article

    Conversion to the second harmonic of high power iodine photodissociation laser system PERUN

    The frequency doubling of the iodine laser PERUN is described. The maximum conversion efficiency of ≈55% is attained, the energy of the red (λ=0.657μm) radiation is ≈20 J.

    V. I. Bespalov, V. I. Bredichin, M. Chvojka… in Czechoslovak Journal of Physics (1995)

  9. No Access

    Article

    Conversion to the third harmonic of the iodine photodissociation laser PERUN

    The frequency tripling of the iodine laser PERUN is described. The maximum conversion efficiency to the third harmonic is ≈ 50%, which represents about 20 J of the 3ω laser beam.

    V. I. Bespalov, V. I. Bredichin, D. G. Efimov… in Czechoslovak Journal of Physics (1995)

  10. No Access

    Article

    Ion generation from Al-laser-produced plasma

    Particle diagnostics of Al-laser-produced plasma based on ion collectors identified three groups of emitted ions. Their velocity distributions were analyzed to obtain the mean ion energy, energy and charge car...

    M. Chvojka, B. Králiková, J. Krása, L. Láska, K. Mašek… in Czechoslovak Journal of Physics (1994)

  11. No Access

    Chapter and Conference Paper

    Phase Transformations by Nanosecond Iodine Laser Pulses

    The interaction of intense laser radiation with a metal surface in vacuum is a complicated process which involves surface melting, vaporisation, plasma formation, plasma heating and finally a breakdown or expl...

    I. Sárady, C. Magnusson, L-Y. Wei… in Laser in der Technik / Laser in Engineering (1994)

  12. No Access

    Article

    Iodine photodissociation laser system Perun II

    A construction and exploitation of a medium size iodine photodissociation laser system Perun II is reported. This laser produced pulses of infrared light (λ=1.315μm) up to 50 J in energy and 300 ps in duration. T...

    M. Chvojka, B. Králiková, J. Krása, E. Krouský, L. Láska… in Czechoslovak Journal of Physics (1992)

  13. No Access

    Article

    100 GW pulsed iodine photodissociation laser system PERUN I

    The photodissociation iodine laser system PERUN I is described. The laser generates and amplifies the subnanosecond pulse with the energy about 80 J of the fundamental wavelength 1·315 μm and beam diameter 10 ...

    M. Chvojka, V. Hermoch, B. Králiková, J. Krása… in Czechoslovak Journal of Physics B (1988)

  14. No Access

    Article

    Systematic experimental study of instabilities in the sealed CO2 laser

    A systematic pressure-current experimental study of the wave instability regions in glow-discharge of different CO2 laser mixtures has been accomplished. The forward ionization wave F− has been found to be the ma...

    H. Urbánková, M. Chvojka, J. Skála in Czechoslovak Journal of Physics B (1981)

  15. No Access

    Article

    Experimental and numerical studies of the electron distribution function in He + O2 dc discharge

    Probe measurements of the electron energy distribution in He + O2 mixture discharge are compared with the results obtained using the Holstein form of the Boltzmann equation. The transport and Townsend coefficient...

    K. Mašek, B. Králiková, J. Skála in Czechoslovak Journal of Physics B (1980)

  16. No Access

    Article

    The langmuir probe influence on the measurement of the electron energy distribution function in O2 plasma

    The influence of the probe thickness and contamination on the measurement of the electron energy distribution function is studied in a homogeneous oxygen positive column. The curve f(U) obtained by a thin cleaned...

    B. Králiková, J. Skála in Czechoslovak Journal of Physics B (1978)

  17. No Access

    Article

    Visualization of peak or puls edges on an oscilloscopic screen

    M. Chvojka, J. Skála in Czechoslovak Journal of Physics B (1975)

  18. No Access

    Article

    Direct measurement of dispersion by a space fourier analysis

    J. Skála in Czechoslovak Journal of Physics B (1973)