TITLE

A pump–probe investigation of laser-droplet plasma dynamics

AUTHOR(S)
McNaught, S. J.; Fan, J.; Parra, E.; Milchberg, H. M.
PUB. DATE
December 2001
SOURCE
Applied Physics Letters;12/17/2001, Vol. 79 Issue 25, p4100
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The temporal character of the plasma formed by the irradiation of micron-sized argon and krypton droplets with intense 100-ps laser pulses is investigated using a pump-probe scheme. The evolution of the droplet plasma is assessed by monitoring delay-dependent x-ray and extreme ultraviolet (EUV) emission, and by imaging frequency-doubled probe light scattered from the interaction region. Depending on the spectral region of interest, the type of emission, and the droplet characteristics, the effective plasma lifetime can extend from a few hundred picoseconds to as long as several nanoseconds. Knowledge of the droplet plasma lifetime is important in optimizing the efficiency of this laser plasma as an EUV or x-ray source. © 2001 American Institute of Physics. [DOI: 10.1063/1.1426266].
ACCESSION #
5669597

 

Related Articles

  • Efficiency of Laser Energy Input into a Hohlraum through a Hole. Lebo, I. G.; Nikishin, V. V.; Rozanov, V. B.; Tishkin, V. F. // Plasma Physics Reports;May2000, Vol. 26 Issue 5, p405 

    Results are presented from the two-dimensional numerical simulations of laser energy input into a hohlraum through a hole. This problem is of interest for ICF research, specifically, for optimization of laser microtarget design. The optimum relations are found between the hole size and the...

  • Focussing of laser beams by means of a z-pinch formed plasma guiding system. Fauser, C.; Langhoff, H. // Applied Physics B: Lasers & Optics;2000, Vol. 71 Issue 4, p607 

    Abstract. It is shown that during a capillary discharge, plasma channels for guiding light from high-power lasers are temporarily formed. The experiments are performed with alumina capillaries of 2-mm radius and 14-cm length filled with about 100 Pa of helium, methane or hydrogen. The...

  • Interaction of an ultra-intense laser pulse with a nonuniform preformed plasma. Faure, J.; Malka, V.; Marques, J.-R.; Amiranoff, F.; Courtois, C.; Najmudin, Z.; Krushelnick, K.; Salvati, M.; Dangor, A. E.; Solodov, A.; Mora, P.; Adam, J.-C.; Héron, A. // Physics of Plasmas;Jul2000, Vol. 7 Issue 7 

    The propagation of an ultra-intense laser pulse in a preformed plasma channel was investigated experimentally. Different regimes of propagation were observed when the pulse duration was varied. For a long pulse and powers lower than the critical power for self-focusing, P[sub L]/P[sub C]<1...

  • Study of the interaction of a 10 TW femtosecond laser with a high-density long-scale pulsed gas jet. Monot, P.; D’Oliveira, P.; Hulin, S.; Faenov, A. Ya.; Dobosz, S.; Auguste, T.; Pikuz, T. A.; Magunov, A. I.; Skobelev, I. Yu.; Rosmej, F.; Andreev, N. E.; Lefebvre, E. // Physics of Plasmas;Aug2001, Vol. 8 Issue 8 

    A study on the interaction of a 10 TW, 60 fs, Ti–Sapphire laser with a high-density long-scale pulsed nitrogen gas jet is reported. Experimental data on the laser propagation are analyzed with the help of a ray-tracing model. The plasma dynamics is investigated by means of time-resolved...

  • Equation of state measurements of hydrogen isotopes on Nova. Collins, G.W.; Celliers, P. // Physics of Plasmas;May98, Vol. 5 Issue 5, p1864 

    Examines the Nova laser using shock-compress liquid deuterium. Derivation of principal Hugoniot measurements of density and pressure between 0.3 and 2.1 Mbar; Prediction on deuterium transformation; Factors suggesting Nova transition; Discussion on observed compression near 1 Mbar.

  • Relativistic laser-plasma interaction by multi-dimensional particle-in-cell simulations. Pukhov, A.; Meyer-ter-Vehn, J. // Physics of Plasmas;May98, Vol. 5 Issue 5, p1880 

    Investigates the interaction between relativistically strong laser and plasmas by a multi-dimensional particle-in-cell code Virtual Laser Plasma Laboratory. Effectivity of direct vxB push by laser pulse; Description of 'B-loop' acceleration mechanism; Presentation of energy spectra of...

  • Direct-drive, hollow-shell implosion studies on the 60-beam, UV OMEGA laser system. Marshall, F. J.; Delettrez, J. A.; Glebov, V. Yu.; Town, R. P. J.; Yaakobi, B.; Kremens, R. L.; Cable, M. // Physics of Plasmas;Mar2000, Vol. 7 Issue 3 

    Direct-drive implosion experiments have been performed on the University of Rochester's 60-beam, 30 kJ, UV (351 nm) OMEGA [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] laser system to investigate the conditions at maximum compression of polymer-shell targets with zero- or low-pressure (<=3...

  • Magnetic and electric current morphology in the plasma ejected by a laser-irradiated foil. Sanmartín, Juan R.; Reinicke, Peter // Physics of Fluids B: Plasma Physics;Jul91, Vol. 3 Issue 7, p1708 

    A quasisteady model for the plasma ablated from a thick foil by a laser pulse, at low [lowercase_phi_synonym]aλ2L and R/λ2L within a low, narrow range, is given ([lowercase_phi_synonym]a is absorbed intensity, λL wavelength, R focal-spot radius). An approximate analytical solution is...

  • Influence of ambient gas on the temperature and density of laser produced carbon plasma. Harilal, S. S.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G. // Applied Physics Letters;1/12/1998, Vol. 72 Issue 2 

    The effect of ambient gas on the dynamics of the plasma generated by laser ablation of a carbon target using 1.06 μm radiation from a Q-switched Nd:YAG laser has been investigated using a spectroscopic technique. The emission characteristics of the carbon plasma produced in argon, helium and...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics