The effects of the prepulse on capillary discharge extreme ultraviolet laser

  title={The effects of the prepulse on capillary discharge extreme ultraviolet laser},
  author={Moshe Shuker and Amit Ben-Kish and Ron A. Nemirovsky and Amnon Fisher and Amiram Ron},
  journal={Physics of Plasmas},
In the past few years collisionally pumped extreme ultraviolet (XUV) lasers utilizing a capillary discharge were demonstrated. An intense current pulse is applied to a gas-filled capillary, inducing magnetic collapse (Z pinch) and formation of a highly ionized plasma column. Usually, a small current pulse (prepulse) is applied to the gas in order to preionize it prior to the onset of the main current pulse. In this paper we investigate the effects of the prepulse on a capillary discharge Ne… Expand
11 Citations
Influence of current prepulse on capillary-discharge extreme-ultraviolet laser
In this paper the influence of the prepulse current on a capillary-discharge 46.9 nm Ne-like Ar extremeultraviolet laser is reported. A current pulse with a typical RC shape decay time of 30 s wasExpand
X-ray lasing in ablative capillary discharges
In this presentation we summarize the results on lasing in the soft X-ray region as obtained with ablative capillary discharges at the Ruhr-University of Bochum. During the first half-cycle of theExpand
Impact of discharge currents on the intensity of 46.9 nm capillary discharge soft X-ray laser.
Capillary discharge Ne-like argon 46.9nm soft X-ray laser has been firstly manifested with 4.8mm inner diameter alumina capillary for higher discharge currents and the influence of predischargeCurrent by increasing the predischarge current from 25 to 250A and investigated 140A as the best predischargecurrent for lasing. Expand
Characteristics of a multi-wavelength Ne-like Ar laser excited by capillary discharge
We report the characteristics of 46.9, 69.8 and 72.6 nm lasers of Ne-like Ar in a plasma column pumped by capillary discharge. A main current of 12 kA with rise time of 40 ns was used to generate theExpand
Observation of capillary discharge Ne-like Ar 46.9 nm laser with pre-pulse and main-pulse delay time in the domain of 2–130 μs
We demonstrated the lasing of Ne-like Ar 46.9 nm pumped by capillary discharge with the delay time between pre-pulse and main-pulse ranging from 2 to 130 μs. Results show that the laser outputExpand
Impact of discharge current profile on the lasing efficiency of 46.9 nm capillary discharge soft x-ray laser
The very important role played by the discharge current profile on the lasing efficiency of 46.9 nm capillary discharge soft x-ray laser has been experimentally established. The discharge currentExpand
Effect of the rate of rise in discharge current on the output of a 46.9-nm soft X-ray laser based on capillary discharge
Abstract The rate of rise in discharge current (dI/dt) is an important parameter in an X-ray laser pumped by fast capillary discharge. The effect of this parameter on the energy of an argonExpand
Influence of the Inner Diameters of Capillary on the Z-Pinch Plasma of the Capillary Discharge Soft x-ray Laser
In this paper, the effects of inner diameters on the Z-pinch plasma of capillary discharge soft x-ray laser were investigated with the 3.2 mm and 4.0 mm inner diameter alumina capillaries. TheExpand
Demonstration of soft X-ray laser generated in highly saturated capillary discharge amplifier with 4.0 mm and 3.2 mm inner diameter alumina capillaries
Capillary discharge highly saturated Ne-like Ar 46.9 nm laser had been firstly demonstrated with a 4.0 mm inner diameter alumina capillary. The intensity of laser is greater for the 4.0 mm innerExpand
Generation of THz Radiation by Laser Plasma Interaction
This paper presents the three wave parametric decay process to generate the Terahertz (THz) radiations in magnetized plasma. The pump wave (Laser beam) is considered in the extraordinary modeExpand


Lasing in Ne-like S and other new developments in capillary discharge ultrashort wavelength lasers
We report our most recent progress in the development of capillary discharge soft x-ray lasers. This includes the first observation of discharge-pumped ultrashort wavelength lasing in a material thatExpand
Plasma dynamics in capillary discharge soft x-ray lasers.
The dynamics and stability of collapsing gas columns, generated by a fast capillary discharge setup, are studied for obtaining soft x-ray amplification in highly ionized ions. Electron temperatureExpand
Observation of multi-pulse soft x-ray lasing in a fast capillary discharge
We have designed, fabricated and tested a soft x-ray device, which uses a capillary discharge to achieve neon-like argon lasing. The ceramic capillary has an inner diameter of 3 mm and a length ofExpand
Enhanced beam characteristics of a discharge-pumped soft-x-ray amplifier by an axial magnetic field.
This technique is observed to improve the uniformity and divergence of the beam of a 46.9-nm discharge-pumped Ne-like Ar soft-x-ray amplifier by decreasing the plasma density gradients at the time of lasing. Expand
Demonstration of a Discharge Pumped Table-Top Soft-X-Ray Laser [Phys. Rev. Lett. 73, 2192 (1994)]
We report the first observation of large soft-x-ray amplification ([ital gl]=7.2) in a discharge created plasma. A fast, [similar to]40 kA current pulse from a compact discharge was used to exciteExpand
The physics of fast Z pinches
The spectacular progress made during the last few years in reaching high energy densities in fast implosions of annular current sheaths (fast Z pinches) opens new possibilities for a broad spectrumExpand
We study the effect of neutral atoms on the dynamics of a capillary discharge Z-pinch, in a regime for which a large soft-x-ray amplification has been demonstrated. We extended the commonly usedExpand
X-ray lasers
The first in its field, this book is both an introduction to x-ray lasers and a how-to guide for specialists. It provides new entrants and others interested in the field with a comprehensive overviewExpand
NRL: Plasma Formulary
The NRL Plasma Formulary originated over twenty five years ago and has been revised several times during this period, including the most recent revision in 2015. Expand
Electrical Breakdown in Gases