Showing 3,681 - 3,700 results of 3,780 for search '"laser pulse"', query time: 0.18s Refine Results
  1. 3681

    Physicochemical Modifications on Thin Films of Poly(Ethylene Terephthalate) and Its Nanocomposite with Expanded Graphite Nanostructured by Ultraviolet and Infrared Femtosecond Lase... by René I. Rodríguez-Beltrán, Javier Prada-Rodrigo, Ana Crespo, Tiberio A. Ezquerra, Pablo Moreno, Esther Rebollar

    Published 2022-12-01
    “…Laser irradiation was carried out by ultraviolet (265 nm) and near-infrared (795 nm) femtosecond laser pulses, and LIPSS were formed in both materials. …”
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    Article
  2. 3682

    Effect of Auger recombination on transient optical properties in XUV and soft X-ray irradiated silicon nitride by Victor Tkachenko, Vladimir Lipp, Martin Büscher, Flavio Capotondi, Hauke Höppner, Nikita Medvedev, Emanuele Pedersoli, Mark J. Prandolini, Giulio M. Rossi, Franz Tavella, Sven Toleikis, Matthew Windeler, Beata Ziaja, Ulrich Teubner

    Published 2021-03-01
    “…This, in an ideal case, would imply a similar resolution for the temporal pulse properties and the arrival time jitter between the FEL and optical laser pulses. However, carrier transport within the material and out of its surface, as well as carrier recombination may, in addition, significantly decrease the number of carriers. …”
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    Article
  3. 3683

    Method for developing a sub-10 fs ultrafast electron diffraction technology by Hyun Woo Kim, In Hyung Baek, Junho Shin, Sunjeong Park, Hyeon Sang Bark, Key Young Oang, Kyu-Ha Jang, Kitae Lee, Nikolay Vinokurov, Young Uk Jeong

    Published 2020-05-01
    “…Furthermore, a gas-filled hollow core fiber compressor and a Ti:sapphire amplifier are used to implement pump laser pulses of less than 5 fs (rms). Thus, we could present the full simulation results of a sub-10 fs UED, and we believe that it will be one of the technical prototypes to challenge the sub-fs time resolution.…”
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    Article
  4. 3684

    Metal Nanoparticles Deposited on Porous Silicon Templates as Novel Substrates for SERS by Lara Mikac, Mile Ivanda, Marijan Gotić, Aleksandar Maksimović, Sebastiano Trusso, Cristiano D’Andrea, Antonino Foti, Alessia Irrera, Barbara Fazio, Pietro Giuseppe Gucciardi

    Published 2015-12-01
    “…Using 633 nm laser and MB the most noticeable SERS activity gave pSi samples ablated with 30000 and 45000 laser pulses where the LODs of 10<sup>–10</sup> M were obtained. …”
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    Article
  5. 3685

    Femtosecond laser induced damage threshold and incubation in l-threonine aminoacid crystal by L.K. Nolasco, G.A. Flores, S.N.C. Santos, M.B. Andrade, J.J. Rodrigues, Jr., C.R. Mendonça

    Published 2023-12-01
    “…Still, micro-Raman spectroscopy revealed that no structural modifications were induced by the fs-laser pulses on the sample upon micromachining. Such results provide relevant data for the processing of l-threonine crystals via fs-laser micromachining to achieve organic photonic integrated devices.…”
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    Article
  6. 3686

    Interaction of Long Time Pulses of an Nd<sup>3+</sup>:YAG Laser Beam with the Heusler AlloyNi<sub>45</sub>Co<sub>5</sub>Mn<sub>35.5</sub>In<sub>14.5</sub> by Patryk Ciupak, Artur Barłowski, Piotr Sagan, Tadeusz Jasiński, Marian Kuzma

    Published 2021-11-01
    “…In this paper, the laser processing of the surface of bulk and layered samples (of thickness 75 nm) of Ni<sub>45</sub>Co<sub>5</sub>Mn<sub>35.5</sub>In<sub>14.5</sub> alloy (NC5MI) was investigated using microsecond laser pulses. A Q-switched pulsed Nd<sup>3+</sup>:YAG laser, operating in the 1st harmonic (which had a wavelength of 1064 nm) with a pulse duration of 250 µs, was used. …”
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    Article
  7. 3687

    XUV Fluorescence Detection of Laser-Cooled Stored Relativistic Ions by Ken Ueberholz, Lars Bozyk, Michael Bussmann, Noah Eizenhöfer, Volker Hannen, Max Horst, Daniel Kiefer, Nils Kiefer, Sebastian Klammes, Thomas Kühl, Benedikt Langfeld, Markus Loeser, Xinwen Ma, Wilfried Nörtershäuser, Rodolfo Sánchez, Ulrich Schramm, Mathias Siebold, Peter Spiller, Markus Steck, Thomas Stöhlker, Thomas Walther, Hanbing Wang, Christian Weinheimer, Weiqiang Wen, Danyal Winters

    Published 2023-02-01
    “…It was shown that the detected fluorescence strongly depends on the position of the detector around the bunched ion beam and on the delay (∼ns) between the ion bunches and the laser pulses. In addition, the fluorescence information could be directly combined with the revolution frequencies of the ions (and their longitudinal momentum spread), which were recorded using the Schottky resonator at the ESR. …”
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    Article
  8. 3688

    Original Research. Photoacoustic Microscopy in Dental Medicine by Stan Adrian Tudor, Idorași Laura, Stan Victor Florin, Rogobete Alexandru Florin, Sinescu Cosmin, Negruțiu Meda Lavinia, Romînu Mihai

    Published 2017-03-01
    “…Introduction: Photoacoustic microscopy, also known as optoacoustic imaging, is a comparatively new method of investigation in dental medicine, which uses a laser-generated ultrasound (short laser pulses) to achieve images for interpretation. Photoacoustic microscopy can be used in a broad spectrum, from detecting tooth decay at its earliest stages to dental anatomy analysis. …”
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    Article
  9. 3689

    Simulation of laser drilling of Inconel X-750 and Ti-5Al-2.5Sn sheets using COMSOL by Muammel M. Hanon, Ziad A. Taha, László Zsidai

    Published 2021-08-01
    “…A JK 701 pulsed Nd:YAG laser was used for drilling through the entire depth of Inconel X-750 and Ti-5Al-2.5Sn plates with a thickness of 2 mm and 3 mm, using laser pulses of a millisecond in time. The laser parameters varied in different combinations for well-controlled drilling through the entire thickness of the plates. …”
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    Article
  10. 3690

    Ultrafast-Laser-Induced Tailoring of Crystal-in-Glass Waveguides by Precision Partial Remelting by Alexey S. Lipatiev, Sergey V. Lotarev, Tatiana O. Lipateva, Sergey S. Fedotov, Elena V. Lopatina, Vladimir N. Sigaev

    Published 2023-03-01
    “…Exposure to femtosecond laser pulses at 200 kHz repetition rate provided cumulative heating of the sample in the vicinity of the beam waist sufficient to provide space-selective melting of crystalline LaBGeO<sub>5</sub>. …”
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    Article
  11. 3691

    Quantum vacuum processes in the extremely intense light of relativistic plasma mirror sources by Antonin Sainte-Marie, Luca Fedeli, Neïl Zaïm, Felix Karbstein, Henri Vincenti

    Published 2022-01-01
    “…In recent years, however, plasma mirrors have emerged as a promising bridge across this gap, by enabling the conversion of intense infrared laser pulses into coherently focused Doppler harmonic beams lying in the X-UV range. …”
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    Article
  12. 3692

    Picosecond Laser Shock Micro-Forming of Stainless Steel: Influence of High-Repetition Pulses on Thermal Effects by José Manuel López, David Munoz-Martin, Juan José Moreno-Labella, Miguel Panizo-Laiz, Gilberto Gomez-Rosas, Carlos Molpeceres, Miguel Morales

    Published 2022-06-01
    “…The pitch distance between consecutive laser pulses was kept constant by tuning the laser repetition rate from 0.4 to 10 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>kHz</mi></mrow></semantics></math></inline-formula>, and subsequently the scanning speed. …”
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    Article
  13. 3693

    AIRBORNE LASER BATHYMETRY FOR DOCUMENTATION OF SUBMERGED ARCHAEOLOGICAL SITES IN SHALLOW WATER by M. Doneus, I. Miholjek, G. Mandlburger, N. Doneus, G. Verhoeven, Ch. Briese, M. Pregesbauer

    Published 2015-04-01
    “…Our research shows that airborne topo-bathymetric laser scanner systems are able to measure surfaces above and below the water table over large areas in high detail using very short and narrow green laser pulses, even revealing sunken archaeological structures in shallow water. …”
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    Article
  14. 3694

    Pressure-induced phase transformations during femtosecond-laser doping of silicon by Smith, Matthew J., Lin, Yu-Ting, Sher, Meng-Ju, Winkler, Mark T., Mazur, Eric, Gradecak, Silvija

    Published 2013
    “…The surface texturing that occurs during femtosecond-laser irradiation produces inhomogeneous pressure distributions across the surface and causes delayed development of high-pressure silicon polymorphs over many laser pulses. Finally, we find that the polymorph phases disappear during annealing more rapidly than the sub-bandgap absorptance decreases, enabling us to decouple these two processes through post-treatment annealing.…”
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    Article
  15. 3695

    One-electron Oxidation of a Pyrenyl Photosensitizer Covalently Attached to DNA and Competition Between its Further Oxidation and DNA Hole Injection by Yun, Byeong Hwa, Dedon, Peter C., Geacintov, Nicholas E., Shafirovich, Vladimir

    Published 2014
    “…Generation of the Py radical cation and subsequent hole injection into the DNA strand by a 355 nm nanosecond laser pulses (∼4 mJ cm[superscript −2]) results in the transformation of G[subscript 1] [superscript Py] to the imidazolone derivative Iz[subscript 1] [superscript Py] and a novel G[subscript 1] [superscript Py*] photoproduct that has a mass larger by 16 Da (M+16) than the mass (M) of G[subscript 1] [superscript Py]. …”
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    Article
  16. 3696

    Far out-of-equilibrium spin populations trigger giant spin injection into atomically thin MoS2 by Cheng, Liang, Wang, Xinbo, Yang, Weifeng, Chai, Jianwei, Yang, Ming, Chen, Mengji, Wu, Yang, Chen, Xiaoxuan, Chi, Dongzhi, Goh, Johnson Kuan Eng, Zhu, Jian-Xin, Sun, Handong, Wang, Shijie, Song, Justin Chien Wen, Battiato, Marco, Yang, Hyunsoo, Chia, Elbert Ee Min

    Published 2020
    “…Rather, they can be driven by ultralow-intensity laser pulses, finally enabling ultrashort spin-current pulses to be a technologically viable information carrier for terahertz spintronics.…”
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    Journal Article
  17. 3697

    Monte Carlo simulations and photoacoustic experiments to compare imaging depth at 532 nm, 800 nm, and 1064 nm by Sharma, Arunima, Srishti, Srishti, Periyasamy, Vijitha, Pramanik, Manojit

    Published 2021
    “…Improvement in imaging depth has been achieved by irradiating the sample with laser pulses of near infrared-I (NIR-I) region (700 nm-900 nm) due to decreased scattering of light in tissues within this optical window. …”
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    Conference Paper
  18. 3698

    High frequency optogenetic activation of inputs to the lateral amygdala forms distant association with foot-shock by Fei Li, Chun-Hui Jia, Jun Huang, Guo-Qiang Bi, Pak-Ming Lau

    Published 2020-03-01
    “…Optogenetic high-frequency stimuli (oHFS; containing five 1-s trains of 100 Hz laser pulses) were delivered to the lateral amygdala, before or after (with varying intervals) a foot-shock that elicits fear responses in the animal. …”
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    Article
  19. 3699
  20. 3700

    Investigation of the Crystallization Characteristics of Intermediate States in Ge<sub>2</sub>Sb<sub>2</sub>Te<sub>5</sub> Thin Films Induced by Nanosecond Multi-Pulsed Laser Irradi... by Jia Du, Jun Zhou, Lianzhen Zhang, Na Yang, Xin Ding, Jin Zhang

    Published 2022-02-01
    “…Laser pulses can be utilized to induce intermediate states of phase change materials between amorphous and crystalline phases, making phase change materials attractive and applicable for multi-level storage applications. …”
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    Article