Low-density tin targets for efficient extreme ultraviolet light emission from laser-produced plasmas
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka, 565-0871 (Japan)
Influence of initial density of tin (Sn) targets has been quantitatively investigated for efficient extreme ultraviolet light emission from laser-produced plasmas. With a decrease in the initial density, conversion efficiency (CE) from incident laser energy to output 13.5 nm light energy in a 2% bandwidth increases; 2.2% of the peak CE was attained with use of 7% low-density SnO{sub 2} targets (0.49 g/cm{sup 3}) irradiated with a Nd:YAG laser, of which wavelength, pulse duration, and intensity are, respectively, 1.064 {mu}m, 10 ns, and 5x10{sup 10} W/cm{sup 2}. The peak CE is 1.7 times higher than that obtained with the use of solid density Sn targets. Experimental results may be attributed to the influence of the initial density and/or microstructure of the targets on expansion dynamics of the plasmas.
- OSTI ID:
- 20779122
- Journal Information:
- Applied Physics Letters, Vol. 88, Issue 16; Other Information: DOI: 10.1063/1.2195693; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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