The effect of laser contrast on generation of highly charged Fe ions by ultra-intense femtosecond laser pulses

被引：5

作者：

Faenov, Anatoly Ya. ^{[1
,2
]}

Alkhimova, Maria A. ^{[2
,3
]}

Pikuz, Tatiana A. ^{[2
,4
]}

Skobelev, Igor Yu. ^{[2
,3
]}

Nishiuchi, Mamiko ^{[5
]}

Sakaki, Hironao ^{[5
]}

Pirozhkov, Alexander S. ^{[5
]}

Sagisaka, Akito ^{[5
]}

Dover, Nicholas P. ^{[5
]}

Kondo, Kotaro ^{[5
]}

Ogura, Koichi ^{[5
]}

Fukuda, Yuji ^{[5
]}

Kiriyama, Hiromitsu ^{[5
]}

Andreev, Alexander ^{[6
,7
]}

Nishitani, Keita ^{[8
]}

Miyahara, Takumi ^{[8
]}

Watanabe, Yukinobu ^{[8
]}

Pikuz, Sergey A., Jr. ^{[2
,3
]}

Kando, Masaki ^{[5
]}

Kodama, Ruosuke ^{[1
,4
,9
]}

Kondo, Kiminori ^{[5
]}

机构：

[1] Osaka Univ, Open & Transdisciplinary Res Initiat, 2-2 Yamadaoka, Suita, Osaka 5650871, Japan

[2] Russian Acad Sci, Joint Inst High Temp, Moscow 125412, Russia

[3] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

[4] Osaka Univ, Grad Sch Engn, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan

[5] Natl Inst Quantum & Radiol Sci & Technol, Kansai Photon Sci Inst, Kyoto, Japan

[6] Max Born Inst, Max Born Str 2a, D-12489 Berlin, Germany

[7] ELI ALPS, H-6720 Szeged, Hungary

[8] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Nishi Ku, 744 Motooka, Fukuoka, Japan

[9] Osaka Univ, Photon Pioneers Ctr, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2017年 / 123卷 / 07期

基金：

俄罗斯科学基金会;

关键词：

PLASMA; ACCELERATION;

D O I：

10.1007/s00340-017-6771-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Experimental studies on the formation of highly charged ions of medium-Z elements using femtosecond laser pulses with different contrast levels were carried out. Multiply charged Fe ions were generated by laser pulses with 35 fs duration and an intensity exceeding - 10(21) W/ cm2. Using high-resolution X-ray spectroscopic methods, bulk electron temperature of the generated plasma has been identified. It is shown that the presence of a laser prepulse at a contrast level of 10(5)-10(6) with respect to the main pulse drastically decreases the degree of Fe ionization. We conclude that an effective source of energetic, multiply charged moderate and high-Z ions based on femtosecond laser-plasma interactions can be created only using laser pulses of ultra-high contrast.

引用

页数：7

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