Characterization of X-ray radiation from solid Sn target irradiated by femtosecond laser pulses in the presence of air plasma sparks

被引：5

作者：

Curcio, A. ^{[1
,2
]}

Anania, M. ^{[1
]}

Bisesto, F. G. ^{[1
,2
]}

Faenov, A. ^{[3
,4
]}

Ferrario, M. ^{[1
]}

Galletti, M. ^{[1
]}

Giulietti, D. ^{[5
,6
]}

Kodama, R. ^{[3
,7
,8
]}

Petrarca, M. ^{[9
,10
]}

Pikuz, T. ^{[3
,4
]}

Zigler, A. ^{[1
,11
]}

机构：

[1] Ist Nazl Fis Nucl, Natl Labs Frascati, Frascati, Italy

[2] Univ Roma La Sapienza, Dept Phys, Rome, Italy

[3] Osaka Univ, Inst Acad Initiat, Suita, Osaka 5650871, Japan

[4] Russian Acad Sci, Joint Inst High Temperatures, Ul Izhorskaya 13-19, Moscow 125412, Russia

[5] Univ Pisa, Dept Phys, Pisa, Italy

[6] Ist Nazl Fis Nucl, Pisa, Italy

[7] PPC Osaka Univ, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan

[8] JST, CREST, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan

[9] Univ Roma La Sapienza, SBAI Dept, Rome, Italy

[10] INFN Roma1, Rome, Italy

[11] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

来源：

LASER AND PARTICLE BEAMS | 2016年 / 34卷 / 03期

关键词：

Air plasma sparks; X-rays; Femtosecond laser; GENERATION; ATMOSPHERE; GAS;

D O I：

10.1017/S0263034616000458

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The emission of X-rays from solid tin targets irradiated by low-energy (few mJ) femtosecond laser pulses propagated through air plasma sparks is investigated. The aim is that to better understand the X-ray emission mechanism and to show the possibility to produce proper radiation for spectroscopic and imaging applications with a table-top laser system. The utilization of a controlled ultrashort prepulse is found necessary to optimize the conversion efficiency of laser energy into L-a radiation. The optimum contrast between the main pulse and the controlled prepulse is found about 10(2). A correlation between the laser contrast value and the laser near-infrared spectra at the exit of the plasma spark is observed.

引用

页码：533 / 538

页数：6

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