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Title: Cavity formation in a liquid Sn droplet driven by laser ablation pressure for an extreme ultraviolet light source target

Abstract

An in situ approach to the formation of cavities in liquid Sn droplets for the purpose of increasing ion density from Sn plasma produced by a CO{sub 2} laser is investigated. Two-dimensional hydrodynamic simulations, treating the laser as a pulsed pressure source, are compared both spatially and temporally to experimental shadowgraphs for verification of cavity formation. It is shown that a 15 ns pulse from a 1.064 {mu}m laser with intensity of 2 x 10{sup 10} W/cm{sup 2} creates a cavity approximately 300 {mu}m wide and 100 {mu}m deep in approximately 1.4 {mu}s. The presence of the cavity enhances the conversion of laser energy to 13.5 nm radiation from the plasma.

Authors:
; ; ; ;  [1];  [1]
  1. Department of Electrical and Computer Engineering and the Center for Energy Research, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0438 (United States)
Publication Date:
OSTI Identifier:
21538236
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 109; Journal Issue: 7; Other Information: DOI: 10.1063/1.3572038; (c) 2011 American Institute of Physics; Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABLATION; CARBON DIOXIDE LASERS; CONVERSION; DROPLETS; EXTREME ULTRAVIOLET RADIATION; ION DENSITY; LASER RADIATION; LIGHT SOURCES; LIQUID METALS; PLASMA; PLASMA PRESSURE; PLASMA PRODUCTION; PLASMA SIMULATION; TIN; VERIFICATION; ELECTROMAGNETIC RADIATION; ELEMENTS; FLUIDS; GAS LASERS; LASERS; LIQUIDS; METALS; PARTICLES; RADIATION SOURCES; RADIATIONS; SIMULATION; ULTRAVIOLET RADIATION

Citation Formats

Yuspeh, S, Tillack, M S, Burdt, R, Tao, Y, Najmabadi, F, Ueno, Y, and Komatsu Ltd., Research Division EUV Source, 1200 Manda, Hiratsuka-shi, Kanagawa 254-8567. Cavity formation in a liquid Sn droplet driven by laser ablation pressure for an extreme ultraviolet light source target. United States: N. p., 2011. Web. doi:10.1063/1.3572038.
Yuspeh, S, Tillack, M S, Burdt, R, Tao, Y, Najmabadi, F, Ueno, Y, & Komatsu Ltd., Research Division EUV Source, 1200 Manda, Hiratsuka-shi, Kanagawa 254-8567. Cavity formation in a liquid Sn droplet driven by laser ablation pressure for an extreme ultraviolet light source target. United States. https://doi.org/10.1063/1.3572038
Yuspeh, S, Tillack, M S, Burdt, R, Tao, Y, Najmabadi, F, Ueno, Y, and Komatsu Ltd., Research Division EUV Source, 1200 Manda, Hiratsuka-shi, Kanagawa 254-8567. 2011. "Cavity formation in a liquid Sn droplet driven by laser ablation pressure for an extreme ultraviolet light source target". United States. https://doi.org/10.1063/1.3572038.
@article{osti_21538236,
title = {Cavity formation in a liquid Sn droplet driven by laser ablation pressure for an extreme ultraviolet light source target},
author = {Yuspeh, S and Tillack, M S and Burdt, R and Tao, Y and Najmabadi, F and Ueno, Y and Komatsu Ltd., Research Division EUV Source, 1200 Manda, Hiratsuka-shi, Kanagawa 254-8567},
abstractNote = {An in situ approach to the formation of cavities in liquid Sn droplets for the purpose of increasing ion density from Sn plasma produced by a CO{sub 2} laser is investigated. Two-dimensional hydrodynamic simulations, treating the laser as a pulsed pressure source, are compared both spatially and temporally to experimental shadowgraphs for verification of cavity formation. It is shown that a 15 ns pulse from a 1.064 {mu}m laser with intensity of 2 x 10{sup 10} W/cm{sup 2} creates a cavity approximately 300 {mu}m wide and 100 {mu}m deep in approximately 1.4 {mu}s. The presence of the cavity enhances the conversion of laser energy to 13.5 nm radiation from the plasma.},
doi = {10.1063/1.3572038},
url = {https://www.osti.gov/biblio/21538236}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 7,
volume = 109,
place = {United States},
year = {2011},
month = {4}
}