Results 31 to 40 of about 412,203 (293)

Sustained Acceleration of Over-dense Plasmas by Colliding Laser Pulses [PDF]

, 2006
We review recent PIC simulation results which show that double-sided irradiaton of a thin overdense plasma slab by ultra-intense laser pulses from both sides can lead to sustained comoving acceleration of surface electrons to energies much higher than ...
EDISON LIANG, Liang E.
core   +3 more sources

Fabrication of Hydrophilic Surface on Rigid Gas Permeable Contact Lenses to Enhance the Wettability Using Ultraviolet Laser System

Micromachines, 2019
The widely used rigid gas permeable (RGP) contact lenses provide higher oxygen permeability and tear exchange rate than do soft contact lenses. However, their wettability warrants improvement to enhance the wearing comfort.
Hsin-Yi Tsai, Yu-Chen Hsieh, Yu-Hsuan Lin, Han-Chao Chang, Yu-Hsiang Tang, Kuo-Cheng Huang   +5 more
doaj   +1 more source

Wavebreaking-associated transmitted emission of attosecond extreme-ultraviolet pulses from laser-driven overdense plasmas

, 2016
We present a new mechanism of attosecond extreme-ultraviolet (XUV) pulses generation from a relativistic laser-driven overdense plasma surfaces in the wavebreaking regime.
Chen, Zi-Yu, Cherednychek, Mykyta, Pukhov, Alexander   +2 more
core   +1 more source

Ultrarelativistic nanoplasmonics as a new route towards extreme intensity attosecond pulses

, 2011
The generation of ultra-strong attosecond pulses through laser-plasma interactions offers the opportunity to surpass the intensity of any known laboratory radiation source, giving rise to new experimental possibilities, such as quantum electrodynamical ...
A. A. Gonoskov, A. I. Akhiezer, A. M. Sergeev, A. V. Kim, A. V. Korzhimanov, M. Marklund   +5 more
core   +2 more sources

Harmonic Generation from Relativistic Plasma Surfaces in Ultra-Steep Plasma Density Gradients [PDF]

, 2012
Harmonic generation in the limit of ultra-steep density gradients is studied experimentally. Observations demonstrate that while the efficient generation of high order harmonics from relativistic surfaces requires steep plasma density scale-lengths ($L_p/
A. Belyanin, A. Galestian Pour, A. Pukhov, B. Dromey, C. Rödel, D. an der Brügge, D. Hemmers, E. Eckner, G. G. Paulus, G. Pretzler, J. Bierbach, M. Behmke, M. C. Kaluza, M. Cerchez, M. Yeung, M. Zepf, O. Jäckel, O. Willi, S. Fuchs, S. Herzer, T. Hahn, T. Toncian, W. Kruer   +22 more
core   +3 more sources

Study of microscale surface morphology changing of the retroreflector in EAST by means of laser speckle interferometry technique

Nuclear Materials and Energy, 2021
The retroreflectors in EAST (Experimental Advanced Superconducting Tokamak) are important optical components of Polarimeter-Interferometer (POINT) system, working as the first mirrors to reflect the incident far-infrared laser.
Hongbei WANG, Huihui YAN, Xiaoqian CUI, Nu ZHANG, Yinxian JIE, Haiqing LIU, Hongbin DING   +6 more
doaj   +1 more source

Picosecond high-repetition-rate pulsed laser ablation of dielectrics: the effect of energy accumulation between pulses [PDF]

, 2015
We report experiments on the ablation of arsenic trisulphide and silicon using high-repetition-rate (megahertz) trains of picosecond pulses. In the case of arsenic trisulphide, the average single pulse fluence at ablation threshold is found to be >100 ...
Gamaly, Eugene G, Luther-Davies, Barry, Madsen, Nathan, Rode, Andrei V   +3 more
core   +1 more source

SPECTRAL CONTROL OF THE FORMATION PROCESSES OF ALUMINUM NITRIDE CLUSTERS IN THE PLASMA WHEN ALUMINUM IS SUBJECTED TO SERIES OF DOUBLE LASER PULSES [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2011
The effect of an additional laser pulse on the formation of the specific component and charge composition of the surface laser plasma was studied by the method of laser spark spectrometry (LSS).
H. N. Trinh, A.R. Fadeian, A.P. Zajogin
doaj  

Non-thermal atmospheric pressure plasma treatment increases hydrophilicity and promotes cell growth on titanium alloys in vitro

Scientific Reports, 2023
Most medical implants are made of titanium. When titanium is exposed to air for a long time, hydrocarbons are deposited and the surface becomes hydrophobic.
Woo-Lam Jo, Young-Wook Lim, Soon-Yong Kwon, Ji-Hoon Bahk, Jungsung Kim, Taejin Shin, YongHwa Kim   +6 more
doaj   +1 more source

Observation of enhanced absorption of laser radiation by nano structured targets in PIC simulations

, 2017
It is well known that Brunel's vacuum heating mechanism is operative for laser energy absorption when the target plasma density rises sharply. For non-relativistic laser intensities and planar targets it is also necessary that the laser should strike the
Das, Amita, Shukla, Chandrasekhar
core   +1 more source