laser irradiation
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2022 ◽  
Vol 147 ◽  
pp. 107666
Author(s):  
Stanislav O. Gurbatov ◽  
Vladislav Puzikov ◽  
Artem Cherepakhin ◽  
Eugeny Mitsai ◽  
Natalie Tarasenka ◽  
...  

2022 ◽  
Vol 148 ◽  
pp. 107760
Author(s):  
Ahmed H. Sheet ◽  
Omnia Hamdy ◽  
Zienab Abdel-Salam ◽  
Mohamed Abdel-Harith

2022 ◽  
Vol 34 (1) ◽  
pp. 012019
Author(s):  
Shuang Liu ◽  
Haiying Song ◽  
Shengnan Wang ◽  
Bairui Du ◽  
Bing Wang ◽  
...  

Nanophotonics ◽  
2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Pavel N. Terekhin ◽  
Jens Oltmanns ◽  
Andreas Blumenstein ◽  
Dmitry S. Ivanov ◽  
Frederick Kleinwort ◽  
...  

Abstract Understanding the mechanisms and controlling the possibilities of surface nanostructuring is of crucial interest for both fundamental science and application perspectives. Here, we report a direct experimental observation of laser-induced periodic surface structures (LIPSS) formed near a predesigned gold step edge following single-pulse femtosecond laser irradiation. Simulation results based on a hybrid atomistic-continuum model fully support the experimental observations. We experimentally detect nanosized surface features with a periodicity of ∼300 nm and heights of a few tens of nanometers. We identify two key components of single-pulse LIPSS formation: excitation of surface plasmon polaritons and material reorganization. Our results lay a solid foundation toward simple and efficient usage of light for innovative material processing technologies.


Biomolecules ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 133
Author(s):  
Svetlana A. Murzina ◽  
Viktor P. Voronin ◽  
Maria V. Churova ◽  
Tatiana R. Ruokolainen ◽  
Natalia S. Shulgina ◽  
...  

The effect of He–Ne laser irradiation on fishery parameters as well as on biochemical state, including the lipids and fatty acids, the activity of energy metabolism enzymes and the proteome in the blastula stage and in underyearlings of wild Atlantic salmon after irradiation at the cleavage stage/early blastula (considered as the stages when the cell has a high potential for differentiation) was studied. Low mortality rates of eggs were determined during embryogenesis, as well as increased weight gain and lower morality rates of underyearlings in the experimental group. This is confirmed by changes in a number of interrelated indicators of lipid metabolism: a decrease in total lipids content, including diacylglycerols, triacylglycerols, cholesterol esters, and the phospholipids content remained unchanged. The embryos in the blastula stage (experimental group) had higher aerobic capacity and an increase in pentose phosphate pathway activity. The proteome profiles of eggs in the blastula stage were 131 proteins, of which 48 were significantly identified. The major protein was found to be phosvitin. The proteomes of underyearlings were represented by 2018 proteins, of which 49 were unique for the control and 39 for the experimental group. He-–Ne laser irradiation had a strong effect on the contents of histone proteins.


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