Characteristics of extreme ultraviolet emission from mid-infrared laser-produced rare-earth Gd plasma

Takeshi Higashiguchi, Bowen Li, Yuhei Suzuki, Masato Kawasaki, Hayato Ohashi, Shuichi Torii, Daisuke Nakamura, Akihiko Takahashi, Tatsuo Okada, Weihua Jiang, Taisuke Miura, Akira Endo, Padraig Dunne, Gerry O'Sullivan, Tetsuya Makimura

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We characterize extreme ultraviolet (EUV) emission from mid-infrared (mid-IR) laser-produced plasmas (LPPs) of the rare-earth element Gd. The energy conversion efficiency (CE) and the spectral purity in the mid-IR LPPs at λL = 10.6 μm were higher than for solid-state LPPs at λL = 1.06 μm, because the plasma produced is optically thin due to the lower critical density, resulting in a CE of 0.7%. The peak wavelength remained fixed at 6.76 nm for all laser intensities studied. Plasma parameters at a mid-IR laser intensity of 1.3×1011 W/cm2 was also evaluated by use of the hydrodynamic simulation code to produce the EUV emission at 6.76 nm.

Original languageEnglish
Pages (from-to)31837-31845
Number of pages9
JournalOptics Express
Volume21
Issue number26
DOIs
Publication statusPublished - Dec 30 2013

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Characteristics of extreme ultraviolet emission from mid-infrared laser-produced rare-earth Gd plasma'. Together they form a unique fingerprint.

  • Cite this

    Higashiguchi, T., Li, B., Suzuki, Y., Kawasaki, M., Ohashi, H., Torii, S., Nakamura, D., Takahashi, A., Okada, T., Jiang, W., Miura, T., Endo, A., Dunne, P., O'Sullivan, G., & Makimura, T. (2013). Characteristics of extreme ultraviolet emission from mid-infrared laser-produced rare-earth Gd plasma. Optics Express, 21(26), 31837-31845. https://doi.org/10.1364/OE.21.031837