<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>41.8</mml:mn><mml:mtext>−</mml:mtext><mml:mi>nm</mml:mi></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi mathvariant="normal">Xe</mml:mi><mml:mrow><mml:mn>8</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>laser driven in a plasma waveguide

Butler, Alison; Gonsalves, A. J.; McKenna, Claire; Spence, David J.; Hooker, S. M.; Sebban, S.; Mocek, Tomáš; Betttaibi, I.; Cros, B.

doi:10.1103/physreva.70.023821

Cited by 13 publications

(6 citation statements)

References 33 publications

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“…Picosecond laser excitation of sulfur plasma created by an ablative capillary discharge has been demonstrated to produce lasing at 60.8 nm in Ne-like S [10 ]. Laser amplification by electron ion recombination has been reported at 13.5 nm within plasma channels created by discharge or laser ablation of LiF microcapillaries [11], and an optical-field ionization laser in Pd-like Xe at 41.8 nm is reported in these proceedings using a plasma channel created in a gas filled micro-capillary excited by a relatively slow discharge current pulse [12]. In another paper in these proceedings we report the generation and characterization of plasma waveguides in a highly ionized Ar plasma created by a fast capillary discharge of the type used to develop discharge-pumped collisional soft xray lasers [13] .…”

Section: I1 Introductionmentioning

confidence: 94%

“…Several schemes for the generation of plasma waveguides based on either laser or discharge excitation have been studied [1][2][3][4][5][6][7][8][9]. Some of these plasma waveguides have been utilized in soft xray laser amplification experiments [10][11][12]. Picosecond laser excitation of sulfur plasma created by an ablative capillary discharge has been demonstrated to produce lasing at 60.8 nm in Ne-like S [10 ].…”

Section: I1 Introductionmentioning

confidence: 99%

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Recent results in capillary discharge soft x-ray laser research

Rocca¹,

Marconi²,

Wang³

et al. 2003

SPIE Proceedings

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We report results of the development of capillary discharge driven metal-vapor plasma waveguides for the development of efficient laser-pumped soft x-ray lasers; and of the use of a previously developed capillary discharge Nelike Ar 46.9 nm laser in study of the interaction of intense soft x-ray laser with materials. The guiding of a laser beam in a dense capillary discharge plasma channel containing a large density of Ag ions is reported. In term of applications we have conducted studies of materials modification and ablation with focalized 46.9 nm laser radiation at fluences between 0.1 and 100 J cm -2 . The experiments demonstrated that the combined high repetition rate and high energy per pulse of the capillary discharge laser allows for the first time the processing of large surface areas with intense soft x-ray laser radiation. The damage threshold and damage mechanism of extreme ultraviolet Sc/Si multilayer mirror coatings was studied . Damage threshold fluences of ~ 0.08 J/cm 2 were determined for coatings deposited on both borosilicate glass and Si substrates. Scanning and transmission electron microscopy, and small-angle X-ray diffraction techniques revealed the thermal nature of the damage mechanism. These results provide a benchmark for the use of Sc/Si multilayer mirrors in high fluence applications, and for the development of higher damage threshold mirrors. Soft x -ray laser ablation studies were also conducted for silicon and several plastic materials, including PMMA, Polyamide and PTFE.

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Section: I1 Introductionmentioning

confidence: 94%

Section: I1 Introductionmentioning

confidence: 99%

Recent results in capillary discharge soft x-ray laser research

Rocca¹,

Marconi²,

Wang³

et al. 2003

SPIE Proceedings

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“…It should be noted that the plasma channel acts as a quadratic phase modulator (Spence et al, 2003) and transforms the Gaussian beam at the entrance of the capillary into another Gaussian beam at the exit. Most experimental and simulation works of channeled LWFA with parabolic electron density waveguide have concentrated on the guiding of the laser pulse intensity at 10 17 to 10 18 w/cm 2 (Bobrova et al, 2001;Butler et al, 2004). Using the higher intensity can potentially improve the laser accelerator performance.…”

Section: Intense Pulse Guiding Through Plasma Channelmentioning

confidence: 99%

Propagation of a pulsed laser through a plasma based waveguide with a parabolic profile of the electron density

Eslami

2012

Int. J. Phys. Sci.

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The paper presents a numerical study of the periodic self focusing behavior of a laser pulse propagation in a gas filled capillary plasma with a parabolic electron density profile. An implicit and inherently stable Crank-Nicholson method was used to demonstrate the periodic laser beam waist behavior inside the tube discharge. The dependence of the tube radius and beam waist on maximum intensity delivered to the waveguide and its influence on the modulated Rayleigh length was discussed.

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“…Significant efforts have been devoted to reducing the size of saturated soft x-ray lasers from laboratory size [1,2] to table-top [3][4][5][6][7]. The demonstration of laser amplification in transitions of Ne-like ions in a capillary discharge plasma [3,7] opened the possibility to develop very compact short wavelength lasers for applications. We report a new type of capillary discharge laser that is significantly more compact and less costly than its predecessors.…”

mentioning

confidence: 99%

“…The magnetic force of the current pulse and large thermal pressure gradients near the wall rapidly compress the plasma to form a dense and hot column with a large density of Ne-like ions, with a very high axial uniformity and a length to diameter ratio of the order of 1000:1. Collisional electron impact excitation of the ground state Ne-like ions produces a population inversion between the 3p 1 S 0 and 3s 1 P 1 levels resulting in amplification at 46.9 nm [7].…”

mentioning

confidence: 99%

Demonstration of a desk-top size high repetition rate soft x-ray laser

Heinbuch¹,

Grisham²,

Martz³

et al. 2005

Opt. Express

168

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Abstract:We have demonstrated a new type of high repetition rate 46.9 nm capillary discharge laser that fits on top of a small desk and that it does not require a Marx generator for its excitation. The relatively low voltage required for its operation allows a reduction of nearly one order of magnitude in the size of the pulsed power unit relative to previous capillary discharge lasers. Laser pulses with an energy of ~ 13 µJ are generated at repetition rates up to 12 Hz. About (2-3) x 10 4 laser shots can be generated with a single capillary. This new type of portable laser is an easily accessible source of intense short wavelength laser light for applications. XUV optical constants by reflectometry using a high-repetition rate 46.9-nm laser," IEEE J. Sel. Top.

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41.8−nmXe8+laser driven in a plasma waveguide

Cited by 13 publications

References 33 publications

Recent results in capillary discharge soft x-ray laser research

Recent results in capillary discharge soft x-ray laser research

Propagation of a pulsed laser through a plasma based waveguide with a parabolic profile of the electron density

Demonstration of a desk-top size high repetition rate soft x-ray laser

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