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X-ray emission from laser-irradiated gold targets with surface modulation

  • T. DESAI (a1), H. DAIDO (a1), M. SUZUKI (a1), N. SAKAYA (a1), A.R. GUERREIRO (a2) and K. MIMA (a1)...

Abstract

X-ray emission spectra in the 5–22 nm range were recorded from planar and structured (meshlike groove surface) gold targets at 45° and 90° to the laser axis. A laser beam of 10-ns duration with EL ≤ 700 mJ and 1.06-μm wavelength was used for the experiment. Experimental results indicate an enhanced X-ray yield from a structured target as compared to a planar target under identical experimental conditions. Increased X-ray emission is attributed to plasma confinement and the possibility of conversion of kinetic energy into localized thermal energy of the plasma. Results are analyzed explicitly on the incident laser energy.

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Corresponding author

Address correspondence and reprint requests to: Tara Desai, National Research Institute for Applied Mathematics, 7th Cross, 7th Block, Jayanagar, Bangalore-560066, India

X-ray emission from laser-irradiated gold targets with surface modulation

  • T. DESAI (a1), H. DAIDO (a1), M. SUZUKI (a1), N. SAKAYA (a1), A.R. GUERREIRO (a2) and K. MIMA (a1)...

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