High dynamic range multi-channel cross-correlator for single-shot temporal contrast measurement

Kon, Akira; Nishiuchi, Mamiko; Kiriyama, Hiromitsu; Ogura, Koichi; Mori, Michiaki; Sakaki, Hironao; Kando, Masaki; Kondo, Kiminori

Journal of Physics; Conference Series, 717, p.012103_1 - 012103_4, 2016/05

https://doi.org/10.1088/1742-6596/717/1/012103

Efficient extreme ultraviolet emission from one-dimensional spherical plasmas produced by multiple lasers

Yoshida, Kensuke*; Fujioka, Shinsuke*; Higashiguchi, Takeshi*; Ugomori, Teruyuki*; Tanaka, Nozomi*; Ohashi, Hayato*; Kawasaki, Masato*; Suzuki, Yuhei*; Suzuki, Chihiro*; Tomita, Kentaro*; et al.

Applied Physics Express, 7(8), p.086202_1 - 086202_4, 2014/08

https://doi.org/10.7567/APEX.7.086202

We demonstrate high conversion efficiency for extreme ultraviolet (EUV) emission at 6.5-6.7 nm from multiple laser beam-produced one-dimensional spherical plasmas. Multiply charged-state ions produce strong resonance emission lines, which combine to yield intense unresolved transition arrays in Gd, Tb, and Mo. The maximum in-band EUV conversion efficiency was observed to be 0.8%, which is one of the highest values ever reported due to the reduction of plasma expansion loss.

Characterization of extreme ultraviolet emission from laser-produced spherical tin plasma generated with multiple laser beams

Shimada, Yoshinori*; Nishimura, Hiroaki*; Nakai, Mitsuo*; Hashimoto, Kazuhisa*; Yamaura, Michiteru*; Tao, Y.*; Shigemori, Keisuke*; Okuno, Tomoharu*; Nishihara, Katsunobu*; Kawamura, Toru*; et al.

Applied Physics Letters, 86(5), p.051501_1 - 051501_3, 2005/01

https://doi.org/10.1063/1.1856697

no abstracts in English

Preface to topical papers on science and technology created by ultra-short and ultra-high intensity lasers

Daido, Hiroyuki

Reza Kenkyu, 31(11), p.696 - 697, 2003/11

https://doi.org/10.2184/lsj.31.696

no abstracts in English

Nanoparticle formation by pulsed laser ablation of TiO

Yamaki, Tetsuya; Ito, Hisayoshi; Matsubara, Masakazu*; Abe, Hiroaki*; Asai, Keisuke*

Transactions of the Materials Research Society of Japan, 28(3), p.879 - 882, 2003/10

Titanium oxide nanoparticles were formed by pulsed laser ablation of a TiO rutile pellet with a KrF excimer laser ( = 248 nm). The ablation was performed in atmospheres of Ar and O at total pressures ranging from 0.2 and 10 Torr. At a higher pressure than 1 Torr, Ti in the nanoparticles had an oxidation state of 4+ to form TiO. According to the X-ray diffraction analyses, the nanopartiles were found to contain both the anatase and rutile phases, which crystallized through extremely energetic, non-equilibrium reactions in an ablation plume. In contrast, at pressures of 0.2 and 0.5 Torr, the nanoparticles were composed of dominant TiO with a small amount of a less oxidized phase such as TiO. The important result is that the XRD patterns of the samples prepared at 1 and 5 Torr showed the different anatase-to-rutile ratio of the peak intensities. This indicates that the weight fraction of the rutile/anatase crystalline phases can be controlled by the ambient gas pressure.

Relativistic laser-plasma interaction, 1

Nagashima, Keisuke

Purazuma, Kaku Yugo Gakkai-Shi, 78(5), p.419 - 426, 2002/05

https://doi.org/10.1585/jspf.78.419

no abstracts in English

Observation of MeV multicharged ions and hot electrons accelerated by a 65-fs laser pulse

Auguste, T.*; Faenov, A. Y.*; Fukumoto, Ichiro; Hulin, S.*; Magunov, A. I.*; Monot, P.*; D'Oliveira, P.*; Pikuz, T. A.*; Sasaki, Akira; Sharkov, B. Y.*; et al.

Journal of Quantitative Spectroscopy & Radiative Transfer, 71(2-6), p.147 - 156, 2001/10

https://doi.org/10.1016/S0022-4073(01)00064-4

no abstracts in English

Pulse duration effect on the distribution of energetic particles produced by intense from femtosecond laser pulses irradiating solids

Zhidkov, A. G.; Sasaki, Akira; Fukumoto, Ichiro; Tajima, Toshiki; Auguste, T.*; D'Oliveira, P.*; Hulin, S.*; Monot, P.*; Faenov, A. Y.*; Pikuz, T. A.*; et al.

Physics of Plasmas, 8(8), p.3718 - 3723, 2001/08

https://doi.org/10.1063/1.1383026

no abstracts in English

Prepulse effects on the interaction of intense femtosecond laser pulses with high-Z solids

Zhidkov, A. G.; Sasaki, Akira; Utsumi, Takayuki*; Fukumoto, Ichiro; Tajima, Toshiki; Saito, Fumikazu*; Hironaka, Yoichiro*; Nakamura, Kazutaka*; Kondo, Kenichi*; Yoshida, Masataka*

Physical Review E, 62(5), p.7232 - 7240, 2000/11

https://doi.org/10.1103/PhysRevE.62.7232

no abstracts in English

Report on the International Conferences on Atomic Processs in Plasmas and Atomic Data

Sasaki, Akira; Murakami, Izumi*; Takabe, Hideaki*

Reza Kenkyu, 28(7), p.446 - 449, 2000/07

https://ci.nii.ac.jp/naid/10005723167

no abstracts in English