Study of x-ray emission enhancement via a high-contrast femtosecond laser interacting with a solid foil

被引：99

作者：

Chen, L. M. ^{[1
,2
]}

Kando, M. ^{[1
]}

Xu, M. H. ^{[2
]}

Li, Y. T. ^{[2
]}

Koga, J. ^{[1
]}

Chen, M. ^{[2
]}

Xu, H. ^{[2
]}

Yuan, X. H. ^{[2
]}

Dong, Q. L. ^{[2
]}

Sheng, Z. M. ^{[2
,3
]}

Bulanov, S. V. ^{[1
,4
]}

Kato, Y. ^{[1
]}

Zhang, J. ^{[2
,3
]}

Tajima, T. ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Kansai Photon Sci Inst, Adv Photon Res Ctr, Kizu, Kyoto 6190215, Japan

[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China

[3] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China

[4] Russian Acad Sci, AM Prokhorov Inst Gen Phys, Moscow, Russia

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.100.045004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observed the increase of the conversion efficiency from laser energy to K alpha x-ray energy (eta(K)) produced by a 60 fs frequency doubled high-contrast laser pulse focused on a Cu foil, compared to the case of the fundamental laser pulse. eta(K) shows a strong dependence on the nonlinearly modified rising edge of the laser pulse. It reaches a maximum for a 100 fs negatively modified pulse. The hot electron efficient heating leads to the enhancement of eta(K). This demonstrates that high-contrast lasers are an effective tool for optimizing eta(K), via increasing the hot electrons by vacuum heating.

引用

页数：4

共 33 条

[11] Ginzburg V.L., 1970, The Propagation of Electromagnetic Waves in Plasmas
[12] Experimental identification of "vacuum heating" at femtosecond-laser-irradiated metal surfaces
Grimes, MK
Rundquist, AR
Lee, YS
Downer, MC
[J]. PHYSICAL REVIEW LETTERS, 1999, 82 (20) : 4010 - 4013
[13] Generation of hard x rays by ultrafast terawatt lasers
Guo, T
Spielmann, C
Walker, BC
Barty, CPJ
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01) : 41 - 47
[14] Surface acceleration of fast electrons with relativistic self-focusing in preformed plasma
Habara, H.
Adumi, K.
Yabuuchi, T.
Nakamura, T.
Chen, Z. L.
Kashihara, M.
Kodama, R.
Kondo, K.
Kumar, G. R.
Lei, L. A.
Matsuoka, T.
Mima, K.
Tanaka, K. A.
[J]. PHYSICAL REVIEW LETTERS, 2006, 97 (09)
[15] An empirical expression for K-shell ionization cross section by electron impact
Hombourger, C
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1998, 31 (16) : 3693 - 3702
[16] X-RAY SPECTROSCOPY OF HOT SOLID DENSITY PLASMAS PRODUCED BY SUBPICOSECOND HIGH-CONTRAST LASER-PULSES AT 10(18)-10(19) W/CM(2)
JIANG, Z
KIEFFER, JC
MATTE, JP
CHAKER, M
PEYRUSSE, O
GILLES, D
KORN, G
MAKSIMCHUK, A
COE, S
MOUROU, G
[J]. PHYSICS OF PLASMAS, 1995, 2 (05) : 1702 - 1711
[17] Comparison of experimental and simulated Kα yield for 400 nm ultrashort pulse laser irradiation
Khattak, F. Y.
du Sert, O. A. M. B. Percie
Riley, D.
Foster, P. S.
Divall, E. J.
Hooker, C. J.
Langley, A. J.
Smith, J.
Gibbon, P.
[J]. PHYSICAL REVIEW E, 2006, 74 (02):
[18] Laser-based microfocused x-ray source for mammography: Feasibility study
Krol, A
Ikhlef, A
Kieffer, JC
Bassano, DA
Chamberlain, CC
Jiang, Z
Pepin, H
Prasad, SC
[J]. MEDICAL PHYSICS, 1997, 24 (05) : 725 - 732
[19] Kruer William, 2019, The physics of laser plasma interactions
[20] HYADES - A PLASMA HYDRODYNAMICS CODE FOR DENSE-PLASMA STUDIES
LARSEN, JT
LANE, SM
[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 1994, 51 (1-2) : 179 - 186

← 1 2 3 4 →