نتایج جستجو برای: laser produced plasma
تعداد نتایج: 837742 فیلتر نتایج به سال:
Quasielectrostatic whistler wave radiation from the hot electron emission of a laser-produced plasma
Measurements are presented of radiated wave electric fields which result from the creation of a dense, laser-produced plasma within a large, uniform background magnetoplasma. The radiated field patterns are consistent for waves propagating along the quasielectrostatic branch of the whistler wave dispersion curve calculated from the background plasma parameters. The energy source of these waves ...
Interest of the research in terahertz (THz) wave has been strongly motivated by its wide applications fields physics, chemistry, biology, and engineering. Developing efficient reliable THz source is uttermost priority these researches. Numerous attempts have made fulfilling generation. Greatly benefited from progress ultrafast pulses, laser-induced-plasma one auspicious tools to provide desirab...
We present results from a combined experimental and numerical simulation study of the anisotropy expansion laser-produced plasma into vacuum. Plasma is generated by nanosecond Nd:YAG laser pulse impact (laser wavelength [Formula: see text]) onto tin microdroplets. Simultaneous measurements ion kinetic energy distributions at seven angles with respect to direction beam reveal strong anisotropic ...
Opacity effects on extreme ultraviolet (EUV) emission from laser-produced tin (Sn) plasma have been experimentally investigated. An absorption spectrum of a uniform Sn plasma generated by thermal x rays has been measured in the EUV range (9-19 nm wavelength) for the first time. Experimental results indicate that control of the optical depth of the laser-produced Sn plasma is essential for obtai...
Efficient laser systems are essential for the realization of high volume manufacturing in extreme ultraviolet lithography (EUVL). Solid-state Nd:YAG lasers usually have lower efficiency and source suppliers are alternatively investigating the use of high power CO2 laser systems. However, CO2 laser-produced plasmas (LPP) have specific characteristics and features that should be taken into accoun...
a r t i c l e i n f o Keywords: Optical emission spectroscopy Laser-induced breakdown spectroscopy Laser-produced plasma Plasma dynamics Femtosecond laser ablation In this study we examine the emission from brass plasma produced by ns and fs laser ablation under both vacuum and atmosphere environments using identical laser fluences in order to better understand the differences in emission featu...
Short pulse high intensity laser plasma interactions are investigated experimentally with temporally and spectrally resolved soft x ray diagnostics We demonstrate that the pulse width of the laser produced x rays emitted from solid targets may be varied down to the picosecond time scale by adjusting the incident laser ux Bright picosecond broadband emission characteristic of a short scale lengt...
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