The emission of extreme ultraviolet radiation in a 2% bandwidth centered at 13.5 nm (in-band) is measured in one hemisphere. The targets of the laser are tin droplets. In-band emission is measured at angles from the laser axis larger than 120°. Analytical models representing the physical processes are developed and calibrated with the experimental data. In the models two assumptions are investigated, isentropic and isothermal 2D-axisymmetric expansion. The parameters of the models are the density distribution of the plasma and the location where the EUV emission is centered. The parameters are inferred by the calibration of the models with the experimental data. The predictions of the models are validated with experiments where slab targets were used.
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21 July 2013
Research Article|
July 18 2013
Three-dimensional extreme ultraviolet emission from a droplet-based laser-produced plasma
A. Z. Giovannini;
A. Z. Giovannini
Laboratory for Energy Conversion
, ETH Zurich, 8092 Zurich, Switzerland
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Reza S. Abhari
Reza S. Abhari
Laboratory for Energy Conversion
, ETH Zurich, 8092 Zurich, Switzerland
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J. Appl. Phys. 114, 033303 (2013)
Article history
Received:
May 01 2013
Accepted:
July 01 2013
Citation
A. Z. Giovannini, Reza S. Abhari; Three-dimensional extreme ultraviolet emission from a droplet-based laser-produced plasma. J. Appl. Phys. 21 July 2013; 114 (3): 033303. https://doi.org/10.1063/1.4815955
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