Optico-spectroscopic diagnostics of large-scale plasma clouds created above A surface under the action of A single-pulse laser in atmospheric-pressure air

1995 ◽  
Vol 62 (1) ◽  
pp. 172-178
Author(s):  
L. Ya. Min'ko ◽  
A. N. Chumakov ◽  
A. N. Loparev
Keyword(s):  
Pulse Laser ◽  
Atmospheric Pressure ◽  
Large Scale ◽  
Single Pulse ◽  
Spectroscopic Diagnostics

Shaping dynamics and structure of large-scale surface plasma formations under single-pulse laser action on various materials

1998 ◽  
Vol 65 (2) ◽  
pp. 273-280
Author(s):  
L. Y. Min'ko ◽  
A. N. Chumakov ◽  
A. N. Loparev ◽  
G. I. Bakanovich ◽  
V. B. Avramenko
Keyword(s):  
Pulse Laser ◽  
Large Scale ◽  
Laser Action ◽  
Single Pulse ◽  
Surface Plasma ◽  
Scale Surface

Spatio-temporally resolved spectroscopic diagnostics of the barrier discharge in air at atmospheric pressure

2001 ◽  
Vol 34 (21) ◽  
pp. 3164-3176 ◽  
Author(s):  
K V Kozlov ◽  
H-E Wagner ◽  
R Brandenburg ◽  
P Michel
Keyword(s):  
Atmospheric Pressure ◽  
Barrier Discharge ◽  
Spectroscopic Diagnostics

scholarly journals Thermal dynamic analysis of picosecond and nanosecond single pulse laser flash-heating of Al/NC nanoenergetic composites

2009 ◽  
Vol 58 (1) ◽  
pp. 655
Author(s):  
Peng Ya-Jing ◽  
Liu Yu-Qiang ◽  
Wang Ying-Hui ◽  
Zhang Shu-Ping ◽  
Yang Yan-Qiang
Keyword(s):  
Dynamic Analysis ◽  
Pulse Laser ◽  
Single Pulse ◽  
Laser Flash

THE EFFECT OF THERMAL ANNEALING AND PULSE LASER ANNEALING IN THE REDUCTION OF GRAPHENE OXIDE

2021 ◽  
Vol 5 (1) ◽  
pp. 47-56
Author(s):  
Adeyemi Owolabi ◽  
Ali Haruna ◽  
Felix Ekwuribe ◽  
Raphael Ushiekpan Ugbe ◽  
Alexander Bulus Bature ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Pulse Laser ◽  
Large Scale ◽  
Laser Annealing ◽  
Thermal Reduction ◽  
Reduction Technique ◽  
Laser Method ◽  
Glass Substrates ◽  
Promising Application ◽  
Alternative Sources

The discovery of Graphene and its unique properties has attracted great interest. Unfortunately, the synthesis of graphene in large scale is challenging, for this reason the derivative of graphene such as graphene oxide (GO) and reduce graphene oxide (rGO) have become alternative sources. The reduction of graphene oxide is an alternative route to obtain graphene-like behavior. This study is aim at examining the similarities and difference between thermal reduction technique and pulse laser method of reduction of (GO). The method utilizes a pulse laser beam for reduction of GO layers on glass substrates and thermal reduction technique. Using the pulse laser method, conductivity of reduced GO was found to be 2.325E-2(1/ohm) which is six times higher than conductivity values reported for GO layers reduced by thermal means at 400oC which was 3.740E-3(1/ohm). A higher transmittance was observed for the pulse laser annealed which holds promising application in a lot technological research. The scanning electron microscope (SEM) result reveals the evenly distribution of the GO around the substrate. The non-thermal nature of the pulse laser method combined with its simplicity and scalability, makes it very attractive for the future manufacturing of large-volume graphene-based optoelectronics

Generation of a large-scale uniform plasma plume through the interactions between a pair of atmospheric pressure argon plasma jets

2020 ◽  
Vol 117 (13) ◽  
pp. 134102
Author(s):  
Xuechen Li ◽  
Jiacun Wu ◽  
Boyu Jia ◽  
Kaiyue Wu ◽  
Pengcheng Kang ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Large Scale ◽  
Plasma Plume ◽  
Argon Plasma ◽  
Plasma Jets ◽  
Uniform Plasma

scholarly journals Large-Scale Image Analysis for Investigating Spatio-Temporal Changes in Nuclear DNA Damage Caused by Nitrogen Atmospheric Pressure Plasma Jets

2020 ◽  
Vol 21 (11) ◽  
pp. 4127
Author(s):  
Xu Han ◽  
James Kapaldo ◽  
Yueying Liu ◽  
M. Sharon Stack ◽  
Elahe Alizadeh ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Dna Damage ◽  
Image Analysis ◽  
Cancer Cells ◽  
Atmospheric Pressure ◽  
Large Scale ◽  
Nuclear Dna ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Spatio Temporal

The effective clinical application of atmospheric pressure plasma jet (APPJ) treatments requires a well-founded methodology that can describe the interactions between the plasma jet and a treated sample and the temporal and spatial changes that result from the treatment. In this study, we developed a large-scale image analysis method to identify the cell-cycle stage and quantify damage to nuclear DNA in single cells. The method was then tested and used to examine spatio-temporal distributions of nuclear DNA damage in two cell lines from the same anatomic location, namely the oral cavity, after treatment with a nitrogen APPJ. One cell line was malignant, and the other, nonmalignant. The results showed that DNA damage in cancer cells was maximized at the plasma jet treatment region, where the APPJ directly contacted the sample, and declined radially outward. As incubation continued, DNA damage in cancer cells decreased slightly over the first 4 h before rapidly decreasing by approximately 60% at 8 h post-treatment. In nonmalignant cells, no damage was observed within 1 h after treatment, but damage was detected 2 h after treatment. Notably, the damage was 5-fold less than that detected in irradiated cancer cells. Moreover, examining damage with respect to the cell cycle showed that S phase cells were more susceptible to DNA damage than either G1 or G2 phase cells. The proposed methodology for large-scale image analysis is not limited to APPJ post-treatment applications and can be utilized to evaluate biological samples affected by any type of radiation, and, more so, the cell-cycle classification can be used on any cell type with any nuclear DNA staining.

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