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

Zhao, Yijun; Jiang, Shan; Cui, Huaiyu; Li, Lianbo; Ding, Yujie; Zhang, Wenhong; Wei, Li; Abdullin, E. N.; Kiselev, V. N.; Morozov, Alexander

doi:10.1051/epjap/2015150105

Cited by 4 publications

(8 citation statements)

References 24 publications

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“…The detailed introduction of the experimental setup was presented in ref [25]. The detailed introduction of the experimental setup was presented in ref [25].…”

Section: Resultsmentioning

confidence: 99%

“…An X-Ray Diode (XRD) was utilized to capture the temporal evolution of soft x-ray radiation in the experiments, and it consisted of a gold-coated cathode and a metal mesh anode. The experiments were conducted under the optimum pressure for each capillary, which were 64 Pa and 41 Pa for the 3.2 mm and 4.0 mm inner diam capillaries respectively [25]. The amplitude of the main current is 26 kA, and it has a 10-90 % rising time of 50 ns and a half period of approximately 150 ns.…”

Section: Resultsmentioning

confidence: 99%

“…Because of the lower current density could reduce the ablated material and enhance the number of laser shots with a single alumina capillary [25]. When the amplitude of the main current was increased, the pressure of Z-pinch on the outer boundary of the plasma column could be increased.…”

Section: Resultsmentioning

confidence: 99%

“…In the experiments, the main current was generated with a water capacitor, which was charged by a 10-stage Marx generator. The detailed introduction of the experimental setup was presented in ref [25]. An X-Ray Diode (XRD) was utilized to capture the temporal evolution of soft x-ray radiation in the experiments, and it consisted of a gold-coated cathode and a metal mesh anode.…”

Section: Resultsmentioning

confidence: 99%

“…We had generated the highly saturated soft x-ray laser with a 4.0 mm inner diam alumina capillary, and the intensity of laser was higher than that with a widely adopted 3.2 mm inner diam capillary [25]. Furthermore, the alumina capillaries with larger inner diameter were especially important to the achievement of more intense soft x-ray laser.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Influence of the Inner Diameters of Capillary on the Z‐Pinch Plasma of the Capillary Discharge Soft x‐ray Laser

Jiang

Zhao

Cui

et al. 2015

Contrib. Plasma Phys.

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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. The intensities of the laser emitted from the 3.2 mm and 4.0 mm inner diameter alumina capillaries were measured under different initial pressures. To understand the underlying physics of the experimental measurements, the Z-pinch plasma simulations had been conducted with a one-dimensional cylindrical symmetry Lagrangian magneto-hydrodynamics (MHD) code. The parametric studies of Z-pinch plasma, such as the electron temperature, the electron density and the Ne-like Ar ion density, were performed with the MHD code. With the experimental and the simulated results, the discussions had been conducted on the Z-pinch plasma of Ne-like Ar 46.9 nm laser with the 3.2 mm and 4.0 mm inner diameter alumina capillaries. The analysis had been made on the difference of the gain coefficients under the optimum pressures with both capillaries. Then, the effects of inner diameters on the optimum pressure and the pressure domain were analyzed.

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“…The detailed introduction of the experimental setup was presented in ref [25]. The detailed introduction of the experimental setup was presented in ref [25].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of the Inner Diameters of Capillary on the Z‐Pinch Plasma of the Capillary Discharge Soft x‐ray Laser

Jiang

Zhao

Cui

et al. 2015

Contrib. Plasma Phys.

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Influence of the gain-length product on the pulse duration of highly saturated capillary discharge soft X-ray laser

et al. 2015

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Numerical simulation of Ne-like Ar plasma dynamics and laser beam characteristics of 46.9 nm laser excited by capillary discharge

Khan

Zhao

et al. 2020

AIP Advances

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In this work, we performed computer modeling of high electrical discharge in an Ar filled alumina capillary in order to investigate the parameters of the discharge system that may lead to achieve an intense laser beam. One-dimensional magnetohydrodynamics (MHD) simulations were used to study the parameters of discharge produced Ar plasma. The radial evolution of plasma parameters such as electron temperature, electron density, and Ne-like argon density was estimated from MHD simulations. Additionally, the influence of the main discharge current on the pinching time and plasma radius was analyzed with the one-dimensional MHD model. The active medium for lasing is created by a high amplitude main pulse and pre-pulse. Specifically, we investigated the optimum main discharge current and Ar filling pressure. The main discharge current of 30 kA was declared as the best current to obtain the 46.9 nm laser with a 4 mm alumina capillary. The influence of the main discharge current and lasing pressure on laser beam intensity and beam characteristics has been studied theoretically and experimentally. The saturated laser intensity was obtained with a main discharge current of 30 kA. A severe reduction in laser intensity was observed above the main discharge current of 30 kA due to capillary wall ablation. The laser beam divergence was observed to be less than 3.5 mrad. The theoretical results obtained from MHD simulations are in good agreement with the experimental results of laser intensity and laser beam characteristics.

show abstract

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

Cited by 4 publications

References 24 publications

Influence of the Inner Diameters of Capillary on the Z‐Pinch Plasma of the Capillary Discharge Soft x‐ray Laser

Influence of the Inner Diameters of Capillary on the Z‐Pinch Plasma of the Capillary Discharge Soft x‐ray Laser

Influence of the gain-length product on the pulse duration of highly saturated capillary discharge soft X-ray laser

Numerical simulation of Ne-like Ar plasma dynamics and laser beam characteristics of 46.9 nm laser excited by capillary discharge

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