title: Characteristics of extreme ultraviolet emission from mid-infrared laser-produced rare-earth Gd plasmas.
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 1.3×10(11) W/cm(2) was also evaluated by use of the hydrodynamic simulation code to produce the EUV emission at 6.76 nm.
authors: Takeshi
authors: T
authors: Higashiguchi
authors: Bowen
authors: B
authors: Li
authors: Yuhei
authors: Y
authors: Suzuki
authors: Masato
authors: M
authors: Kawasaki
authors: Hayato
authors: H
authors: Ohashi
authors: Shuichi
authors: S
authors: Torii
authors: Daisuke
authors: D
authors: Nakamura
authors: Akihiko
authors: A
authors: Takahashi
authors: Tatsuo
authors: T
authors: Okada
authors: Weihua
authors: W
authors: Jiang
authors: Taisuke
authors: T
authors: Miura
authors: Akira
authors: A
authors: Endo
authors: Padraig
authors: P
authors: Dunne
authors: Gerry
authors: G
authors: O'Sullivan
authors: Tetsuya
authors: T
authors: Makimura