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Title: Laser triggered Z-pinch broadband extreme ultraviolet source for metrology

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4807172· OSTI ID:22162949
;  [1];  [2];  [3]; ;  [2];  [4]
  1. School of Physics, Trinity College Dublin, Dublin 2 (Ireland)
  2. School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland)
  3. ISAN Institute of Spectroscopy, Fizicheskaya Str. 5, Troitsk, Moscow Region 142190 (Russian Federation)
  4. Newlambda Technologies, UCD Science Centre North, Belfield, Dublin 4 (Ireland)

We compare the extreme ultraviolet emission characteristics of tin and galinstan (atomic %: Ga: 78.35, In: 14.93, Sn: 6.72) between 10 nm and 18 nm in a laser-triggered discharge between liquid metal-coated electrodes. Over this wavelength range, the energy conversion efficiency for galinstan is approximately half that of tin, but the spectrum is less strongly peaked in the 13-15 nm region. The extreme ultraviolet source dimensions were 110 {+-} 25 {mu}m diameter and 500 {+-} 125 {mu}m length. The flatter spectrum, and -19 Degree-Sign C melting point, makes this galinstan discharge a relatively simple high radiance extreme ultraviolet light source for metrology and scientific applications.

OSTI ID:
22162949
Journal Information:
Applied Physics Letters, Vol. 102, Issue 20; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English