Titanium plasma produced by a nitrogen laser

Henč-Bartolić, Višnja; Andreić, Željko; Kunze, H.‐J.

doi:10.1088/0031-8949/50/4/009

Cited by 9 publications

(5 citation statements)

References 6 publications

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“…E u (cm −1 ) A( 10 [4]. In order to illustrate the relation between electron density and temperature, the graph of the electron density versus temperature was shown in figure 5.…”

Section: λ(Nm)mentioning

confidence: 99%

“…For the sake of making a thorough enquiry into the real situation of the plasma, it is essential to characterize some basic parameters, such as electron temperature (Te), electron density (Ne), and the line broadening and shift. Many studies have indicated that optical emission spectroscopy (OES) is an effective way to achieve this goal because of its fast contactless advantage [1][2][3][4]. The OES method has also been used in different investigations about the titanium plasma-like self-absorption effect [5], time-of-flight (TOF) measurements [6][7][8], pulsed laser deposition (PLD) process analysis [9] and Te and Ne measurements [4,7].…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have indicated that optical emission spectroscopy (OES) is an effective way to achieve this goal because of its fast contactless advantage [1][2][3][4]. The OES method has also been used in different investigations about the titanium plasma-like self-absorption effect [5], time-of-flight (TOF) measurements [6][7][8], pulsed laser deposition (PLD) process analysis [9] and Te and Ne measurements [4,7]. The lines used in the above literature [4][5][6][7] are mostly Ti I and Ti II lines.…”

Section: Introductionmentioning

confidence: 99%

“…The OES method has also been used in different investigations about the titanium plasma-like self-absorption effect [5], time-of-flight (TOF) measurements [6][7][8], pulsed laser deposition (PLD) process analysis [9] and Te and Ne measurements [4,7]. The lines used in the above literature [4][5][6][7] are mostly Ti I and Ti II lines. The Stark broadening parameters for the high-ionization stage, such as Ti IV, Ti XI and Ti XII can be found in [10,11].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigation of Ti III line broadening in a laser-induced plasma

Chen¹,

Man²,

Liu³

et al. 2012

J. Phys. B: At. Mol. Opt. Phys.

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Time-resolved spectroscopy was used to study the plasma emission induced by a 1064 nm, 10 ns pulsed laser ablation titanium during the early phase of between 60–200 ns in an atmospheric environment. The line intensity evolution of Ti III and Ti II was analysed in terms of the delay time, as well as the plasma temperature and electron density, based on the observed spectra. The Stark broadening for two Ti III lines at 237.4986 and 241.3989 nm was measured. Since the self-absorption of the lines was not observed in our experiment, its influence on the lines was assumed to be negligible. Moreover, a modified semi-empirical approach was used to calculate the Stark broadening for the two lines and generally good agreement was obtained between the theoretical results and experimental data.

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“…E u (cm −1 ) A( 10 [4]. In order to illustrate the relation between electron density and temperature, the graph of the electron density versus temperature was shown in figure 5.…”

Section: λ(Nm)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of Ti III line broadening in a laser-induced plasma

Chen¹,

Man²,

Liu³

et al. 2012

J. Phys. B: At. Mol. Opt. Phys.

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show abstract

“…Hermann et al [9] discovered through LIBS analysis that maximum emission intensities of Ti plasma are obtained under 20, 80 and 200 Torr pressures for Ar, Ne and He, respectively. Bartolić et al [10] reported that the emission intensities of Ti plasma were slightly higher in vacuum than in air, whereas the number density is smaller in vacuum than in air. Bashir et al [11] reported that the maximum values of Cd plasma parameters are higher in the case of Ar compared to He and air.…”

Section: Introductionmentioning

confidence: 99%

Laser-assisted ablation and plasma formation of titanium explored by LIBS, QCM, optical microscopy and SEM analyses along with mechanical modifications under different pressures of Ar and Ne

Riaz

Bashir

Hayat

et al. 2023

Plasma Sci. Technol.

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The present study deals with the investigation of Nd: YAG laser assisted ablation and plasma formation of (Ti) at irradiance of 0.85 GW/cm2 under (Ar) and (Ne) environment at various pressures ranging from 10 to 120 Torr. Laser Induced Breakdown Spectroscopy (LIBS) is used to evaluate plasma parameters, whereas, Quartz Crystal Microbalance (QCM) is used for ablation yield measurements. The crater depth is evaluated by optical microscopy, surface features are explored by Scanning Electron Microscope (SEM) analysis and micro-hardness is measured by Vickers hardness tester. It is observed that plasma parameters are higher in Ar than in Ne, and are strongly correlated with ablation yield, ablation depth, surface features and hardness of laser ablated Ti. These parameters increase with increasing the pressure of environmental gasses, attain their maxima at 40 Torr for Ar and at 60 Torr for Ne. Afterwards they show a decreasing trend up till maximum pressure of 120 Torr. The maximum value of electron temperature (Te) is 5480 K, number density (ne) is 1.46×〖10〗^18 cm^(-3), ablation depth is 184 μm, ablation yield is 3.9×〖10〗^15 atoms/pulse and hardness is 300 HV in case of Ar atmosphere. SEM analysis reveals the growth of surface features like cones, ridges and pores whose appearance is more distinct in Ar than Ne and is attributed to temperature, pressure and density gradients along with recoil pressure of Ti plasma.

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Application of Cathode Spot Theory to Laser Metal Interaction and Laser Plasma Generation

Beilis

2020

Plasma and Spot Phenomena in Electrical Arcs

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Titanium plasma produced by a nitrogen laser

Abstract: Titanium plasmas produced in vacuum and in air by radiation from a nitrogen laser focused onto a solid titanium target are studied spectroscopically. The energy deposition is more effective than in other cases since the wavelength of the laser is in the vicinity of Ti resonance lines.

Cited by 9 publications

References 6 publications

Investigation of Ti III line broadening in a laser-induced plasma

Investigation of Ti III line broadening in a laser-induced plasma

Laser-assisted ablation and plasma formation of titanium explored by LIBS, QCM, optical microscopy and SEM analyses along with mechanical modifications under different pressures of Ar and Ne

Application of Cathode Spot Theory to Laser Metal Interaction and Laser Plasma Generation

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