Results 41 to 50 of about 30,090 (307)

SILICON SURFACE MICROSTRUCTURING BY SINGLE-EXPOSURE FEMTOSECOND DOUBLE LASER PULSE [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper evaluates the possibility of periodic microstructures formation on the silicon surface by single-exposure double femtosecond laser pulse. Method.
E. V. Kuzmin, G. D. Shandybina, D. S. Polyakov, A. A. Samokhvalov   +3 more
doaj   +1 more source

System-performance analysis of optimized gain-switched pulse source employed in 40-and 80-Gb/s OTDM systems [PDF]

, 2007
The development of ultrashort optical pulse sources, exhibiting excellent temporal and spectral profiles, will play a crucial role in the performance of future optical time division multiplexed (OTDM) systems. In this paper, we demonstrate the difference
Anandarajah, Prince M., Simon, Jean Claude, Guignard, Celine, Barry, Liam P., Bramerie, Laurent, Clarke, Aisling M., Simon, Jean-Claude, Clarke, Aisling, M., Harvey, J., Harvey, John D., Barry, Liam, P., Anandarajah, Prince, M.   +11 more
core   +1 more source

TiO_xN_y Thin Film Sputtered on a Fiber Ball Lens as Saturable Absorber for Passive Q-Switched Generation of a Single-Tunable/Dual-Wavelength Er-Yb Double Clad Fiber Laser

Nanomaterials, 2020
The use of titanium oxynitride (TiOxNy) thin films as a saturable absorber (SA) element for generation of passive Q-switched (PQS) laser pulses, from a linear cavity Er-Yb double-clad fiber (EYDCF) laser, is demonstrated.
Ricardo I. Álvarez-Tamayo, Omar Gaspar-Ramírez, Patricia Prieto-Cortés, Manuel García-Méndez, Antonio Barcelata-Pinzón   +4 more
doaj   +1 more source

Microhole Drilling by Double Laser Pulses With Different Pulse Energies [PDF]

Journal of Manufacturing Science and Engineering, 2018
Previous investigations on “double-pulse” nanosecond (ns) laser drilling reported in the literature typically utilize double pulses of equal or similar pulse energies. In this paper, “double-pulse” ns laser drilling using double pulses with energies differing by more than ten times has been studied, where both postprocess workpiece characterizations ...
Ze Liu, Benxin Wu, Rong Xu, Kejie Zhao, Yung C. Shin   +4 more
openaire   +1 more source

Design of plasma shutters for improved heavy ion acceleration by ultra-intense laser pulses

New Journal of Physics, 2022
In this work, we investigate the application of the plasma shutters for heavy ion acceleration driven by a high-intensity laser pulse. We use particle-in-cell and hydrodynamic simulations.
M Matys, S V Bulanov, M Kucharik, M Jirka, J Nikl, M Kecova, J Proska, J Psikal, G Korn, O Klimo   +9 more
doaj   +1 more source

Double-pulse laser ablation sampling: Enhancement of analyte emission by a second laser pulse at 213 nm [PDF]

Spectrochimica Acta Part B: Atomic Spectroscopy, 2015
Abstract For the purpose of devising methods for minimally destructive multi-element analysis, we compare the performance of a 266 nm–213 nm double-pulse scheme against that of the single 266 nm pulse scheme. The first laser pulse at 266 nm ablates a mica sample.
Cai, Bruno Yue, Mao, Xianglei, Hou, Huaming, Zorba, Vassilia, Russo, Richard E., Cheung, Nai-Ho   +5 more
openaire   +1 more source

Laser-delayed double shock-wave generation in water-confinement regime [PDF]

, 2015
International audienceThis paper investigates the different physical processes involved during laser-delayed double shock-wave generation in water-confined geometry.
COURAPIED, Damien, ZOU, J-P, Coste, Frédéric, Sautivet, A.-M., F. Coste, A.-M. Sautivet, Peyre, Patrice, L. Berthe, D. Courapied, J.-P. Zou, Berthe, Laurent, P. Peyre, COURAPIED, D   +12 more
core   +1 more source

Beamline, experimental stations and photon beam diagnostics for the hard x-ray free electron laser of SACLA

New Journal of Physics, 2013
A beamline for the x-ray free electron laser (XFEL) of SPring-8 Angstrom Compact free electron LAser (SACLA) provides hard x-ray pulses in the range 4.5–19.5 keV.
K Tono, T Togashi, Y Inubushi, T Sato, T Katayama, K Ogawa, H Ohashi, H Kimura, S Takahashi, K Takeshita, H Tomizawa, S Goto, T Ishikawa, M Yabashi   +13 more
doaj   +1 more source

SPECTRAL STUDIES OF THE Al2O3 AND AlN NANOPOWDER FORMATION EXPOSED ALUMINUM BY A SERIES OF TWIN LASER PULSES IN THE AIR ATMOSPHERE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
A study of the Al2O3 and AlN nanopowder formation under the influence of twin laser pulses with an energy of 52 mJ and between the pulse interval of 10 microseconds on an aluminum target placed in a closed glass rectangular box, depending on the number ...
Kh. Bazzal, N.A. Alekseenko, E.S. Voropay, M.N. Kovalenko, M.P. Patapovich, A.P. Zazhogin   +5 more
doaj   +1 more source

Formation of laser-induced periodic surface nanometric concentric ring structures on silicon surfaces through single-spot irradiation with orthogonally polarized femtosecond laser double-pulse sequences

Nanophotonics, 2021
In this study, we report the formation of laser-induced periodic surface nanometric concentric ring structures on silicon surfaces through single-spot irradiation with orthogonally polarized femtosecond laser double-pulse sequences (OP pulses).
Liu Wei, Hu Jie, Jiang Lan, Huang Ji, Lu Jiangang, Yin Jiangang, Qiu Zhaoling, Liu Hailin, Li Chen, Wang Suocheng, Wang Shaojun   +10 more
doaj   +1 more source