Laser-Solid Interactions
نویسندگان
چکیده
منابع مشابه
Tunable enhancement of high harmonic emission from laser solid interactions.
Coherent wake emission is a unique source of extreme ultraviolet radiation and has been recently shown to provide the basis for intense attosecond light. Here we present a novel scheme, supported by particle-in-cell simulations, demonstrating that enhancement and spectral control of the coherent wake emission signal can be achieved by modifying the interaction plasma density ramp. Significant t...
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A model was developed for material deformation processes induced by laser-generated shock waves. The processes include laser peen forming LPF and laser shock peening LSP of metals. Numerical solutions of the model using finite element method were implemented in two steps: 1 explicit step, devoted to shock wave propagation, and 2 implicit step, calculating relaxation of material. A series of LPF...
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We have analyzed the coupling of ultraintense lasers (at ∼2×10{19} W/cm{2}) with solid foils of limited transverse extent (∼10 s of μm) by monitoring the electrons and ions emitted from the target. We observe that reducing the target surface area allows electrons at the target surface to be reflected from the target edges during or shortly after the laser pulse. This transverse refluxing can ...
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An explanation for the energetic ions observed in the PetaWatt experiments is presented. In solid target experiments with focused intensities exceeding 10 W/cm, high-energy electron generation, hard bremsstrahlung, and energetic protons have been observed on the backside of the target. In this report, we attempt to explain the physical process present that will explain the presence of these ene...
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We present theoretical and experimental evidence that nonionizing prepulses with intensities as low as 10(8)-10(9) W/cm(2) can substantially alter high intensity laser-solid interactions. We show that prepulse-heating and vaporization of the target can lead to a preformed plasma once the vapor is ionized by the rising edge of the high-intensity pulse. Our results indicate that peak prepulse int...
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ژورنال
عنوان ژورنال: MRS Bulletin
سال: 1982
ISSN: 0883-7694,1938-1425
DOI: 10.1557/s0883769400051204