TITLE

Dependence of hard x-ray yield on laser pulse parameters in the wavelength-cubed regime

AUTHOR(S)
Bixue Hou, J.E.; Nees, John A.; Theobald, Wolfgang; Mourou, Gébald A.; Chen, L.M.; Kieffer, Jean-Claude; Krol, Andrzej; Chamberlain, C.C.
PUB. DATE
March 2004
SOURCE
Applied Physics Letters;3/29/2004, Vol. 84 Issue 13, p2259
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Conversion efficiency and electron temperature scaling laws are experimentally studied in the wavelength-cubed (λ[sup 3]) regime, where a single-wavelength focus allows low energy pulses incident on a Mo target to produce x rays with excellent efficiency and improved spatial coherence. Focused intensity is varied from 2×10[sup 16] to 2×10[sup 18] W/cm[sup 2]. Conversion efficiency and electron temperature are best described by a power law for energy scaling while an exponential law best describes the scaling of these parameters with pulse duration. © 2004 American Institute of Physics.
ACCESSION #
12606880

 

Related Articles

  • High intensity x-ray line emission from aluminum plasmas generated by a 120 TW, 30 fs laser pulse. Yang, Jiamin; Hu, Zhimin; Zhang, Jiyan; Zhu, Tuo; Zhao, Yang; Wen, Tianshu; Wang, Zhebin; Ding, Yaonan; Wei, Mingxi; Yang, Guohong; Zhang, Baohan // Physics of Plasmas;11/1/2008, Vol. 15 Issue 11, p112704 

    The K-shell x-ray spectra from the aluminum plasmas generated by the interaction of the 120 TW, 30 fs laser with aluminum targets have been measured by defocusing the laser beam. Laser energy-normalized intensity of the He-a line increases with the laser intensity approximately as a power law...

  • Extreme Nonlinear Optics: Coherent X Rays from Lasers. Kapteyn, Henry C.; Murnane, Margaret M.; Christov, Ivan P. // Physics Today;Mar2005, Vol. 58 Issue 3, p39 

    Focuses on the generation of coherent x rays using ultrashort laser pulses. Information on the process of high-harmonic generation; Limitations of phase-matched high-harmonic generation compared with conventional nonlinear optics; Capability of Role of quasi-phase matching in enhancing the...

  • Ultra-short efficient laser-driven hard X-ray source operated at a kHz repetition rate. Zhavoronkov, N.; Gritsai, Y.; Korn, G.; Elsaesser, T. // Applied Physics B: Lasers & Optics;Oct2004, Vol. 79 Issue 6, p663 

    Ultra-short bursts of hard X-ray radiation are generated by interaction of high-contrast femtosecond laser pulses with a jet of liquid Ga. The X-ray emission shows a strong dependence on the angle of incidence and polarization of the laser beam, consistent with the processes of resonant...

  • Coherent phonon control. Synnergren, O.; Hansen, T. N.; Canton, S.; Enquist, H.; Sondhauss, P.; Srivastava, A.; Larsson, J. // Applied Physics Letters;4/23/2007, Vol. 90 Issue 17, p171929 

    Trains of ultrashort laser pulses have been used to generate and to coherently control acoustic phonons in bulk InSb. The coherent acoustic phonons have been probed via time-resolved x-ray diffraction. The authors show that phonons of a particular frequency can either be enhanced or canceled....

  • Efficient Generation of Attosecond X-Ray Radiation under Interaction of Ultrarelativistic Few-Cycle Laser Pulse with a Thin Foil. Mikhailova, J. M.; Platonenko, V. T. // AIP Conference Proceedings;2006, Vol. 827 Issue 1, p429 

    The possibility of efficient generation of isolated attosecond X-ray pulses in the interaction of a few-cycle laser pulse of ultrarelativistic intensity with a thin solid-density foil has been demonstrated by 1D and 2D PIC simulations. © 2006 American Institute of Physics

  • Plasma Based X-ray Lasers Used For Opacity and Ablation Rate Measurements. Tallents, G. J.; Edwards, M. H.; Mistry, P.; Whittaker, D. S.; Booth, N.; Huang, H.; Pert, G. J.; Rus, B.; Mocek, T.; Kozlova, M.; Lewis, C. L. S.; McKenna, C.; Delseriey, A.; Notley, M.; Neely, D. // AIP Conference Proceedings;2006, Vol. 827 Issue 1, p353 

    Utilizing thin targets, opacities of iron have been measured using x-ray lasers of photon energy 89 eV created by pumping with the VULCAN laser. The thin targets comprise a plastic substrate, a 50 nm thick iron layer and an overlay of 100 nm CH and are separately heated by spot focus laser...

  • Compact soft x-ray source using Thomson scattering. Kashiwagi, Shigeru; Kuroda, Ryunosuke; Oshima, Takashi; Nagasawa, Fumio; Kobuki, Tomoaki; Ueyama, Daisuke; Hama, Yoshimasa; Washio, Masakazu; Ushida, Kiminori; Hayano, Hitoshi; Urakawa, Junji // Journal of Applied Physics;12/15/2005, Vol. 98 Issue 12, p123302 

    A compact soft x-ray source using Thomson scattering, enabled by the combination of a picosecond laser and an electron rf gun, was developed aiming at biological studies such as those using an x-ray microscope. The x-ray source included both a photoinjector system and a picosecond laser system...

  • Studies of Ultrafast Femtosecond-Laser-Generated Strain Fields with Coherent X-rays. Dufresne, Eric M.; Adams, Bernhard; Landahl, Eric C.; Khounsary, Ali M.; Reis, David; Fritz, David M.; SooHeyong Lee // AIP Conference Proceedings;2007, Vol. 879 Issue 1, p1210 

    In its 324 bunch-mode of operation, the Advanced Photon Source (APS) has opened new avenues of femtosecond-laser science and techniques. In this new mode, if one uses the tightly focused low-pulse energy (nJ), high repetition rate fs-laser Ti:sapphire oscillator (88 MHz) on beamline 7ID, every...

  • Effect of plasma density scale length on the properties of bremsstrahlung x-ray sources created by picosecond laser pulses. Courtois, C.; Compant La Fontaine, A.; Landoas, O.; Lidove, G.; Méot, V.; Morel, P.; Nuter, R.; Lefebvre, E.; Boscheron, A.; Grenier, J.; Aléonard, M. M.; Gerbaux, M.; Gobet, F.; Hannachi, F.; Malka, G.; Scheurer, J. N.; Tarisien, M. // Physics of Plasmas;Jan2009, Vol. 16 Issue 1, pN.PAG 

    Results of an experimental study of multi-MeV bremsstrahlung x-ray sources created by picosecond laser pulses are presented. The x-ray source is created by focusing the short pulse in an expanding plasma obtained by heating a solid target with a time-delayed nanosecond laser beam. The...

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