Femtosecond laser quenching of the ε phase of iron

Sano, Tomokazu; Mori, Hiroaki; Ohmura, Etsuji; Miyamoto, Isamu
October 2003
Applied Physics Letters;10/27/2003, Vol. 83 Issue 17, p3498
Academic Journal
The quenching of the ε phase of iron, which has not been observed under a conventional shock compression, was attained using a femtosecond laser. The crystalline structure in a recovered iron sample was determined using an electron backscatter diffraction pattern system. The femtosecond laser driven shock may have the potential to quench high-pressure phases of other materials. © 2003 American Institute of Physics.


Related Articles

  • Femtosecond Optical Pulse Compression in a One-Dimensional Thin Photonic Crystal. Andreev, A. V.; Balakin, A. V.; Boucher, D.; Masselin, P.; Ozheredov, I. A.; Shkurinov, A. P. // JETP Letters;5/10/2000, Vol. 71 Issue 9, p370 

    The effect of femtosecond laser pulse compression is discovered, described, and experimentally studied for a one-dimensional 4.8-μm-thick photonic crystal. © 2000 MAIK “Nauka / Interperiodica”.

  • Phase and Group Synchronization in Second-Harmonic Generation of Ultrashort Light Pulses in One-Dimensional Photonic Crystals. Zheltikov, A. M.; Tarasishin, A. V.; Magnitskiı, S. A. // Journal of Experimental & Theoretical Physics;Aug2000, Vol. 91 Issue 2, p298 

    It is shown, on the basis of an analysis of the dispersion relation for an infinite one-dimensional periodic multilayer structure and direct numerical integration of Maxwell's equations by the finite-difference method, that structures with photonic band gaps (PBGs) make it possible to provide...

  • Femtosecond laser induced crystallization and permanent relief grating structures in amorphous inorganic (In[sub 2]O[sub 3]+1 wt % TiO[sub 2]) films. Katayama, Shigeru; Tsutsumi, Naoto; Nakamura, Toshitaka; Horiike, Mika; Hirao, Kazuyuki // Applied Physics Letters;7/29/2002, Vol. 81 Issue 5, p832 

    This letter presents an investigation of crystalline relief grating structures induced by irradiation of near-infrared femtosecond laser pulses on an amorphous inorganic (In[sub 2]O[sub 3] + 1 wt % TiO[sub 2]) film. The shapes of crystallized relief structures were sensitive to the scanning rate...

  • Frequency doubling of multi-terawatt femtosecond pulses. Marcinkeviĉius, A.; Tommasini, R.; Tsakiris, G. D.; Witte, K. J.; Gai&zcirc;auskas, E.; Teubner, U. // Applied Physics B: Lasers & Optics;Sep2004, Vol. 79 Issue 5, p547 

    We present an experimental and theoretical study of the influence of the spatial beam quality (fluence and phase distributions) on the second-harmonic generation in KDP crystals pumped by 180-fs pulses at 790 nm. Conversion efficiency and beam focusability are investigated experimentally and...

  • Diode-pumped ultra-short-pulse solid-state lasers. Sorokin, E.; Sorokina, I.T.; Wintner, E. // Applied Physics B: Lasers & Optics;2001, Vol. 72 Issue 1, p3 

    Abstract. Many materials are good candidates for diode-pumped ultra-short-pulse lasers: several transition-metal-iondoped crystals can or could support extremely short fs pulses. This goal, so far, has only been reached by Cr[sup 3+]:LiSAF, but there are good chances for other crystals like...

  • Externally pumped high repetition rate femtosecond infrared optical parametric oscillator. Mak, Gary; Qiang Fu // Applied Physics Letters;2/3/1992, Vol. 60 Issue 5, p542 

    Demonstrates externally pumped optical parametric oscillator producing tunable femtosecond pulses in the near-infrared. Synchronous pumping of resonant oscillator with nonlinear crystal from mode-locked laser; Calculation of internal power conversion efficiency and average infrared power;...

  • Picosecond Z-scan measurements on bulk GaN crystals. Pacebutas, V.; Stalnionis, A.; Krotkus, A.; Suski, T.; Perlin, P.; Leszczynski, M. // Applied Physics Letters;6/25/2001, Vol. 78 Issue 26, p4118 

    Bulk GaN crystals were characterized by using picosecond laser pulses at λ=0.527 μm and Z-scan techniques. The role of the free-carrier absorption was evaluated by a dynamical, pump-and-probe-type transmitivity measurement. The values of two-photon absorption coefficient (17-20 cm/GW) and...

  • Defect-density switching wave in crystals under pulsed laser irradiation. Mirzoev, F. Kh. // Technical Physics;Aug98, Vol. 43 Issue 8, p943 

    A model is proposed for the ignition of a defect-density switching wave in a crystal by powerful laser pulses. It is shown that the switching wave arises as a result of the nonlinear dependence of the activation energy of the defect-formation process on the strain field due to defects. The...

  • Relativistic laser-particle interaction: From single electrons to multi-particle systems. Mocken, Guido R.; Salamin, Yousef I.; Hatsagortsyan, Karen Z.; Keitel, Christoph H. // AIP Conference Proceedings;2002, Vol. 611 Issue 1, p44 

    The relativistic dynamics of single particles and thin crystals is investigated in very short, intense laser pulses. Single particle acceleration from 100 MeV to GeV energies is shown for electrons in Gaussian beams of few micron widths and crossed laser beams of 0.1 radians crossing angles....


Read the Article


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

Try another library?
Sign out of this library

Other Topics