Showing 3,481 - 3,500 results of 3,780 for search '"laser pulse"', query time: 0.56s Refine Results
  1. 3481

    Controlled transition to different proton acceleration regimes: Near-critical-density plasmas driven by circularly polarized few-cycle pulses by Shivani Choudhary De Marco, Sudipta Mondal, Daniele Margarone, Subhendu Kahaly

    Published 2023-09-01
    “…Based on numerical simulations conducted over a wide range of experimentally achievable parameter space, reported here is a comprehensive investigation of the different facets of ion acceleration by relativistically intense circularly polarized laser pulses interacting with thin near-critical-density plasma targets. …”
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  2. 3482

    Microstructured polyethylene terephthalate (PET) for microsieving of cancer cells by Paulina Natalia Osuchowska, Roman Ostrowski, Antoni Sarzyński, Marek Strzelec, Zygmunt Mierczyk, Elżbieta Anna Trafny

    Published 2019-12-01
    “…The target microsieves were manufactured from polyethylene terephthalate (C10H8O4)n (PET) – a thermoplastic polymer from the polyester group. Fifty laser pulses with the energy of 22 μJ for drilling each hole were applied. …”
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  3. 3483

    Comparison of Aerosol Pt, Au and Ag Nanoparticles Agglomerates Laser Sintering by Kirill Khabarov, Messan Nouraldeen, Sergei Tikhonov, Anna Lizunova, Olesya Seraya, Emiliia Filalova, Victor Ivanov

    Published 2021-12-01
    “…Results showed the complete transformation of Pt dendrite-like agglomerates with sizes of 300 nm into individual spherical nanoparticles directly in a gas flow under 1053 nm laser pulses with energy density 3.5 mJ/cm<sup>2</sup>. …”
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  4. 3484

    Influence of Periodic Non-Uniformities of Well-Structured Sapphire Surface by LIPSS on the Alignment of Nematic Liquid Crystal by Igor Gvozdovskyy, Zoya Kazantseva, Simon Schwarz, Ralf Hellmann

    Published 2022-02-01
    “…One-dimensional LIPSS (1D-LSFL) are generated by infrared femtosecond laser pulses along parallel lines covering an area of 5 × 5 mm<sup>2</sup>, with a line spacing that is varied between 7 and 17 µm. …”
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  5. 3485

    Laser-assisted nanofabrication of multielement complex oxide core–shell nanoparticles by Soumya Mandal, Ashish Kumar Gupta, Elena Echeverria, David N. McIlroy, Jonathan D. Poplawsky, Ritesh Sachan

    Published 2022-08-01
    “…In this process, the evolution of nanoparticles takes place from the rupture of the initially flat liquid-phase alloyed film under laser irradiation. A continued laser pulsing results in the ripening of the morphologies at different stages eventually leading to a final droplet shape nanoparticle. …”
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  6. 3486

    Modifications in surface, structural and mechanical properties of brass using laser induced Ni plasma as an ion source by Shahbaz Ahmad, Shazia Bashir, M. Shahid Rafique, Daniel Yousaf

    Published 2016-03-01
    “…In response to stepwise increase in number of laser pulses from 3000 to 12000, the ion dose varies from 60 × 1013 to 84 × 1016 ions/cm2 with constant energy of 138 KeV. …”
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  7. 3487

    Bubble Formation in ITER-Grade Tungsten after Exposure to Stationary D/He Plasma and ELM-like Thermal Shocks by Mauricio Gago, Arkadi Kreter, Bernhard Unterberg, Marius Wirtz

    Published 2023-02-01
    “…It was found that for exposure to 100.000 laser pulses of 0.6 GWm<sup>−2</sup> absorbed power density (<i>P</i><sub>abs</sub>), only small bubbles in the nanometer range were formed close to the surface. …”
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  8. 3488

    Combining Hollow Core Photonic Crystal Fibers with Multimode, Solid Core Fiber Couplers through Arc Fusion Splicing for the Miniaturization of Nonlinear Spectroscopy Sensing Device... by Hanna Izabela Stawska, Maciej Andrzej Popenda, Elżbieta Bereś-Pawlik

    Published 2018-10-01
    “…This resulted in a hybrid between the hollow core photonic bandgap fiber (HCPBF) and MMF coupler, delivering 20 mW of average power and 250-fs short laser pulses to the sample, which was good enough to test the proposed sensor setup in a simple, proof-of-concept multiphoton fluorescence excitation-detection experiment, allowing the successful measurement of the fluorescence emission spectrum of 10&minus;5 M fluorescein solution. …”
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  9. 3489

    Toward nonthermal control of excited quantum materials: framework and investigations by ultrafast electron scattering and imaging by Sun, Xiaoyi, Sun, Shuaishuai, Ruan, Chong-Yu

    Published 2021-09-01
    “…Quantum material systems upon applying ultrashort laser pulses provide a rich platform to access excited material phases and their transformations that are not entirely like their equilibrium counterparts. …”
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  10. 3490

    The Detection of UHECRs with the EUSO-TA Telescope by Bisconti F., Belz J.W., Bertaina M.E., Casolino M., Ebisuzaki T., Eser J., Matthews J.N., Piotrowski L.W., Plebaniak Z., Sagawa H., Sakaki N., Shin H., Shinozaki K., Sokolsky P., Takizawa Y., Tameda Y., Thomson G.B.

    Published 2019-01-01
    “…Moreover, other results about the analysis of laser pulses, stars and meteors will be discussed.…”
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  11. 3491

    Laser-Induced Periodic Surface Structuring of Poly(trimethylene terephthalate) Films Containing Tungsten Disulfide Nanotubes by Javier Prada-Rodrigo, René I. Rodríguez-Beltrán, Sandra Paszkiewicz, Anna Szymczyk, Tiberio A. Ezquerra, Pablo Moreno, Esther Rebollar

    Published 2020-05-01
    “…We report the study of the formation of Laser Induced Periodic Surface Structures (LIPSS), with UV femtosecond laser pulses (λ = 265 nm), in free-standing films of both Poly(trimethylene terephthalate) (PTT) and the composite PTT/tungsten disulfide inorganic nanotubes (PTT-WS<sub>2</sub>). …”
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  12. 3492

    Capability Assessment and Performance Metrics for the Titan Multispectral Mapping Lidar by Juan Carlos Fernandez-Diaz, William E. Carter, Craig Glennie, Ramesh L. Shrestha, Zhigang Pan, Nima Ekhtari, Abhinav Singhania, Darren Hauser, Michael Sartori

    Published 2016-11-01
    “…(Toronto, ON, Canada) and emits laser pulses in the 1550, 1064 and 532 nm wavelengths simultaneously through a single oscillating mirror scanner at pulse repetition frequencies (PRF) that range from 50 to 300 kHz per wavelength (max combined PRF of 900 kHz). …”
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  13. 3493

    Attosecond magnetization dynamics in non-magnetic materials driven by intense femtosecond lasers by Ofer Neufeld, Nicolas Tancogne-Dejean, Umberto De Giovannini, Hannes Hübener, Angel Rubio

    Published 2023-03-01
    “…Abstract Irradiating solids with ultrashort laser pulses is known to initiate femtosecond timescale magnetization dynamics. …”
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  14. 3494

    A review of the lunar laser ranging technique and contribution of timing systems by Cilence Munghemezulu, Ludwig Combrinck, Joel O. Botai

    Published 2016-03-01
    “…The lunar laser ranging (LLR) technique is based on the two-way time-of-flight of laser pulses from an earth station to the retroreflectors that are located on the surface of the moon. …”
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  15. 3495

    Estimation of Temperature and Associated Uncertainty from Fiber-Optic Raman-Spectrum Distributed Temperature Sensing by Bas des Tombe, Bart Schilperoort, Mark Bakker

    Published 2020-04-01
    “…DTS systems function by shooting laser pulses through a fiber and measuring its backscatter intensity at two distinct wavelengths in the Raman spectrum. …”
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  16. 3496

    Exploring Optical Nonlinearities of Glass Nanocomposites Made of Bimetallic Nanoparticles and Mesogenic Metal Alkanoates by Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy

    Published 2023-05-01
    “…The produced glass nanocomposites exhibit a relatively strong (10<sup>−8</sup>–10<sup>−7</sup> esu) nonlinear-optical response tested by means of a Z-scan technique and utilizing visible (532 nm) and near-infrared (1064 nm) nanosecond laser pulses. The evaluated values of the effective nonlinear absorption coefficients and nonlinear refractive indices of the studied samples depend on their composition and on the intensity of laser beams, thus revealing the presence of several nonlinear-optical mechanisms acting simultaneously. …”
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  17. 3497

    Protocol using similarity score and improved shrink-wrap algorithm for better convergence of phase-retrieval calculation in X-ray diffraction imaging by Syouyo Yoshida, Kosei Harada, So Uezu, Yuki Takayama, Masayoshi Nakasako

    Published 2024-01-01
    “…Consequently, the protocol has the potential to reduce computational costs in PR calculations and enable efficient XDI structure analysis of non-crystalline particles using synchrotron X-rays and X-ray free-electron laser pulses.…”
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  18. 3498

    Characterization of the impurity features deposited on the boronization tungsten tiles exposed in KSTAR tokamak using laser-induced breakdown spectroscopy by Liying Sun, Ding Wu, Cong Li, Jing Wu, Suk-Ho Hong, Eunnam Bang, Zhenhua Hu, Fang Ding, Guangnan Luo, Hongbin Ding

    Published 2022-06-01
    “…The depth profile of the impurity elements in the deposited layer also has been studied by the variation of spectral intensity with consecutive laser pulses. The lateral-distribution of the boron and carbon on the three tungsten castellated tiles (Rounded, Chamfered and Double chamfered) were carried out at 10−5 mbar vacuum condition. …”
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  19. 3499

    FIB-SEM Investigation of Laser-Induced Periodic Surface Structures and Conical Surface Microstructures on D16T (AA2024-T4) Alloy by Igor A. Salimon, Sakellaris Mailis, Alexey I. Salimon, Evgenij Skupnevskiy, Svetlana A. Lipovskikh, Iaroslava Shakhova, Artem V. Novikov, Timur F. Yagafarov, Alexander M. Korsunsky

    Published 2020-01-01
    “…In the present work, the formation of ripples and conical microstructures under scanning with femtosecond (fs) laser pulses was investigated. Laser treatment was performed using 250 fs pulses of a 1033 nm Yb:YAG laser. …”
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  20. 3500

    Temporal Shaping of High Peak Power Pulse Trains from a Burst-Mode Laser System by Jörg Körner, Jürgen Reiter, Joachim Hein, Malte C. Kaluza

    Published 2015-12-01
    “…It has been shown in the past that pulsed laser systems operating in the so-called “burst mode” are a beneficial approach to generate high peak power laser pulses at high repetition rates suitable for various applications. …”
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