Hydrodynamic simulation of laser-induced shock waves using the Turbulence Problem Solver software package

Abstract The problem of irradiation of a semi-infinite bulk metal target by a single laser pulse, being important for many lase technology applications, is considered. The model for simulating the propagation and attenuation of shock waves, occurring when metals are irradiated with single laser pulse, is presented. The paper describes the computational algorithm based on the model and features of its implementation in C++ in a software package Turbulence Problem Solver (TPS) for modeling a wide class of problems described by hyperbolic equations. The problem is modeled using different approaches and the results are compared. The object-oriented polymorphic architecture of the software complex accelerates and facilitates the process of model development and calibration, allowing for flexible configuration and combination of elements of numerical models: Riemann solvers, various types of and reconstructions, and equations of state of matter.

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Single laser pulse compression via strongly coupled stimulated Brillouin scattering in plasma

Physics of Plasmas ◽

10.1063/1.4959173 ◽

2016 ◽

Vol 23 (7) ◽

pp. 073516 ◽

Cited By ~ 7

Author(s):

H. Peng ◽

Z. H. Wu ◽

Y. L. Zuo ◽

Z. M. Zhang ◽

K. N. Zhou ◽

...

Keyword(s):

Laser Pulse ◽

Pulse Compression ◽

Brillouin Scattering ◽

Stimulated Brillouin Scattering ◽

Single Laser Pulse ◽

Strongly Coupled ◽

Single Laser ◽

Stimulated Brillouin

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All-optical magnetic recording in garnets using a single laser pulse at L-band telecom wavelengths

Applied Physics Letters ◽

10.1063/5.0056522 ◽

2021 ◽

Vol 118 (26) ◽

pp. 262401

Author(s):

Antoni Frej ◽

Andrzej Maziewski ◽

Andrzej Stupakiewicz

Keyword(s):

Laser Pulse ◽

Magnetic Recording ◽

Single Laser Pulse ◽

Single Laser ◽

All Optical ◽

L Band

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Equation-of-state studies using a 10-Hz Nd:YAG laser oscillator

Laser and Particle Beams ◽

10.1017/s026303460321421x ◽

2003 ◽

Vol 21 (4) ◽

pp. 615-626 ◽

Cited By ~ 2

Author(s):

M. SHUKLA ◽

A. UPADHYAY ◽

V.K. SENECHA ◽

P. KHARE ◽

S. BANDYAOPADHYAY ◽

...

Keyword(s):

Equation Of State ◽

Laser Pulse ◽

Beam Quality ◽

Impedance Matching ◽

Laser System ◽

Control Unit ◽

Aluminum Foil ◽

Single Laser Pulse ◽

High Contrast ◽

Single Laser

A commercial mode locked cavity dumped Nd:YAG dye laser operating at 10 Hz repetition rate is modified to produce a high contrast (>5000:1) single laser pulse while maintaining the energy stability and high beam quality. A trigger generator biases the cavity dumping photodiode, which is triggered externally by a pulse from the microprocessor-based control unit controlling a ∼2 J/200 ps laser chain. In the laser chain, the high contrast (>5000:1) is achieved by an external pulse selector based on single Pockel's cell to select a single laser pulse of high contrast, which is a prerequisite for experimental study of the equation of state. Laser-induced shock velocity measurement in thin aluminum, gold on aluminum, and copper on aluminum foil targets using this modified laser system are also presented. The equation of state of Al, Au, and Cu obtained using an impedance matching technique are in agreement with the reported results of SESAME and simulation results.

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Generation of a quasimonoenergetic electron beam using a single laser pulse

Laser Physics ◽

10.1134/s1054660x06070140 ◽

2006 ◽

Vol 16 (7) ◽

pp. 1107-1110 ◽

Cited By ~ 1

Author(s):

H. Kotaki ◽

A. Yamazaki ◽

I. Daito ◽

M. Kando ◽

S. V. Bulanov ◽

...

Keyword(s):

Electron Beam ◽

Laser Pulse ◽

Single Laser Pulse ◽

Single Laser

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Crystallization of Amorphous 55wt%Cr-45wt%Ni Films Induced by 60 ns (0.694 μm) Single Laser Pulse

MRS Proceedings ◽

10.1557/proc-74-197 ◽

1986 ◽

Vol 74 ◽

Author(s):

I. Ursu ◽

M. I. Bîrjega ◽

C. A. Constantin ◽

M. Dinescu ◽

I. N. Mihailescu ◽

...

Keyword(s):

Liquid Phase ◽

Laser Pulse ◽

Ruby Laser ◽

Amorphous Matrix ◽

Normal Incidence ◽

Single Laser Pulse ◽

Thermal Gradients ◽

Single Laser ◽

Threshold Conditions ◽

Phase Liquid

AbstractAmorphous 55wt%Cr-45wt%Ni films (60 nm thick) supported on EM copper grids were irradiated in air at normal incidence with a ruby laser (λ∼, 0.694 μm) through a ≈ 1.5 mm diameter diaphragm using one single laser pulse of 60 ns (FWHM) with fluences ranging from 120 to 540 J.m−2. The structure of the irradiated films is studied by TEM and TED. As a rule due to the appearance of thermal gradients between the centre and the mesh edge of the EM grid, the crystallization took place under various conditions of reaction from liquid phase, liquid melted layers , activated diffusion in solid state, to under threshold conditions for the development of the crystalline nuclei in the amorphous matrix. Periodic resonant and unreso-nant structures also developed in the liquid melted layers.

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