Characterization of density profile of laser-produced Sn plasma for 13.5 nm extreme ultraviolet source
Abstract
We investigated the electron density profile corresponding to the dominant extreme ultraviolet (EUV) emission from a laser-produced Sn plasma using a combination of a green and an UV interferometer. A comparison between experimental results and a one-dimensional radiation hydrodynamic simulation shows reasonable agreement, and the discrepancy could be attributed to three-dimensional plasma expansion. It was found that, due to opacity effects, most of the EUV light comes from an under-dense plasma region.
- Publication:
-
Applied Physics Letters
- Pub Date:
- May 2005
- DOI:
- 10.1063/1.1931825
- Bibcode:
- 2005ApPhL..86t1501T
- Keywords:
-
- 52.25.Os;
- 52.70.Kz;
- 52.65.Kj;
- 52.30.-q;
- Emission absorption and scattering of electromagnetic radiation;
- Optical measurements;
- Magnetohydrodynamic and fluid equation;
- Plasma dynamics and flow