Spectroscopy of hard X-rays (2-15 keV) generated by focusing femtosecond laser on metal targets

被引：25

作者：

Fujimoto, Y

Hironaka, Y

Nakamura, KG

Kondo, K

Yoshida, M

Ohtani, M

Tsunemi, H

机构：

[1] Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, Toyonaka, Osaka 560, Japan

[2] Tokyo Inst Technol, Mat & Struct lab, Yokohama, Kanagawa 2268503, Japan

[3] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1999年 / 38卷 / 12A期

关键词：

femtosecond laser; picosecond; pulsed X-ray; X-ray spectroscopy;

D O I：

10.1143/JJAP.38.6754

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Spectroscopy of hard X-rays generated by focusing a femtosecond laser (42 fs at 780 nm) onto metal targets consisting elements of various atomic number (Z) is carried out in the energy range between 2 and 15 keV using a direct-detection charge-coupled-device camera. Sharp K-shell line emissions are observed fur X-rays generated from medium-Z targets (Til Fe, Ni, Cu and Zn), which can be used for X-ray diffraction without further monochromization. A blond continuum and a weak trace of L-shell line emissions are observed fur X-rays from high-Z targets (Mo, Nb and W). The energies of the characteristic X-rays agree well with that of X-rays from neutral atoms or slightly ionized ions.

引用

页码：6754 / 6756

页数：3

共 20 条

[1] KEV X-RAY-PRODUCTION USING 50-MJ KRF LASER-PRODUCED PLASMAS AT 1-PS AND 100-PS [J].

BROUGHTON, JN ;

FEDOSEJEVS, R .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (06) :3712-3723

[2] HOT-ELECTRON CHARACTERIZATION FROM K-ALPHA MEASUREMENTS IN HIGH-CONTRAST, P-POLARIZED, PICOSECOND LASER-PLASMA INTERACTIONS [J].

CHEN, H ;

SOOM, B ;

YAAKOBI, B ;

UCHIDA, S ;

MEYERHOFER, DD .

PHYSICAL REVIEW LETTERS, 1993, 70 (22) :3431-3434

[3] Short-pulse laser-plasma interactions [J].

Gibbon, P ;

Forster, E .

PLASMA PHYSICS AND CONTROLLED FUSION, 1996, 38 (06) :769-793

[4] Picosecond-milliangstrom resolution dynamics by ultrafast x-ray diffraction [J].

Guo, T ;

RosePetruck, C ;

Jimenez, R ;

Raksi, F ;

Squier, J ;

Walker, B ;

Wilson, KR ;

Barty, CPJ .

APPLICATIONS OF X RAYS GENERATED FROM LASERS AND OTHER BRIGHT SOURCES, 1997, 3157 :84-92

[5] Measurement of quantum efficiency of a charge coupled device [J].

Hashimotodani, K ;

Toneri, T ;

Kitamoto, S ;

Tsunemi, H ;

Hayashida, K ;

Miyata, E ;

Ohtani, M ;

Asakura, R ;

Katayama, K ;

Kohmura, T ;

Hiraga, J ;

Katayama, H ;

Shoho, M ;

Kinugasa, K ;

Imayoshi, T ;

Sumi, Y ;

Ohono, Y .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1998, 69 (11) :3746-3750

[6]

Helliwell J. R., 1997, Time-Resolved Diffraction

[7] Picosecond pulsed X-ray diffraction from a pulsed laser heated Si(111) [J].

Hironaka, Y ;

Tange, T ;

Inoue, T ;

Fujimoto, Y ;

Nakamura, KG ;

Kondo, K ;

Yoshida, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1999, 38 (08) :4950-4951

[8] Picosecond dynamics of a hot solid-density plasma [J].

Kieffer, JC ;

Jiang, Z ;

Ikhlef, A ;

Cote, CY ;

Peyrusse, O .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1996, 13 (01) :132-137

[9] ULTRAFAST X-RAY SOURCES [J].

KIEFFER, JC ;

CHAKER, M ;

MATTE, JP ;

PEPIN, H ;

COTE, CY ;

BEAUDOIN, Y ;

JOHNSTON, TW ;

CHIEN, CY ;

COE, S ;

MOUROU, G ;

PEYRUSSE, O .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1993, 5 (07) :2676-2681

[10] ULTRAFAST LASER GENERATION OF HARD X-RAYS [J].

KMETEC, JD .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1992, 28 (10) :2382-2387

← 1 2 →