Hybrid modeling network for a helium–argon–copper hollow cathode discharge used for laser applications

Abstract

Articles you may be interested inA global model of the self-pulsing regime of micro-hollow cathode discharges J. Appl. Phys. 111, 053305 (2012); 10.1063/1.3690943 Study of the sputtered Cu atoms and Cu + ions in a hollow cathode glow discharge using a hybrid model J. Appl. Phys. 98, 033303 (2005); 10.1063/1.2005381Study of the Ar metastable atom population in a hollow cathode discharge by means of a hybrid model and spectrometric measurements A hybrid modeling network, consisting of several Monte Carlo and fluid models, is developed for a hollow cathode glow discharge in a mixture of helium and argon, with copper as the cathode material. The species considered in the models are the helium and argon gas atoms, electrons, He ϩ , He 2 ϩ , Ar ϩ , and Ar 2 ϩ ions, He and Ar metastable atoms, fast He and Ar atoms, and sputtered Cu atoms and Cu ϩ ions. The modeling network is applied to typical laser conditions. The results of the model, presented in this article, include the electric potential distribution, the density profiles of the various plasma species, and the relative contributions of the various production and loss mechanisms for the plasma species. The model gives us more insight into the plasma behavior, and is therefore useful for optimization of the discharge efficiency for laser applications.

Analytical model of a longitudinal hollow cathode discharge

“…More work is need to clarify this issue, e.g. using electron MonteCarlo simulation, as in [11,12]. Tables Table 1. Parameters of the HCD configuration considered in this paper.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] Several phenomena are considered responsible for the hollow cathode effect, in particular the electrostatic trapping of fast electrons in an oscillating motion inside the cathode, known as the pendulum effect [4,6], and the enhanced secondary-electron emission by UV photons [1] and ions [9] created in the negative glow plasma inside the cathode. A number of papers is devoted to the role of metal vapor atoms due to cathode sputtering.…”

The influence of collision effects in DC glow discharge in argon plasma on the sheath formation

“…Other collision processes do not occur very often and they do not affect the distribution of electron energy to a large extend, see [4], [5].…”

Model of microsecond pulsed glow discharge in hollow cathode for mass spectrometry

“…Theoretical models for the simulation of a glow discharge in DC and RF modes for different applications have already been developed [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44], typically a hybrid model is used. Processes in DC discharge in a HC were theoretically investigated in [35][36][37][38][39], millisecond pulsed discharges and afterglow were investigated theoretically in [40,41].…”