Showing 3,001 - 3,020 results of 4,150 for search '"laser pulse"', query time: 0.97s Refine Results
  1. 3001

    Analysis of the Effect of Pulse Width on Nonlinear Thomson Scattering from an Applied Magnetic Field by Haokai Wang, Feiyang Gu, Yi Zhang, Yubo Wang, Youwei Tian

    Published 2023-10-01
    “…The effects of magnetic fields on electron dynamics, spatially radiated power, and radiation spectra in tightly focused circularly polarized laser pulses are studied in detail. The laser wavelength <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi mathvariant="sans-serif">λ</mi></mrow><mrow><mn>0</mn></mrow></msub><mo>=</mo><mn>1</mn><mo> </mo><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula>. …”
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  2. 3002

    Two-dimensional array of iron-garnet nanocylinders supporting localized and lattice modes for the broadband boosted magneto-optics by Zimnyakova Polina E., Ignatyeva Daria O., Karki Dolendra, Voronov Andrey A., Shaposhnikov Alexander N., Berzhansky Vladimir N., Levy Miguel, Belotelov Vladimir I.

    Published 2021-11-01
    “…Both magneto-optical effects are boosted in wide spectral and angular ranges making the nanocylinder array magnetic dielectric structures promising for applications with short and tightly focused laser pulses.…”
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  3. 3003

    Noncollinear optical gating by C M Heyl, S N Bengtsson, S Carlström, J Mauritsson, C L Arnold, A LʼHuillier

    Published 2014-01-01
    “…This can be achieved by driving the generation process with two identical, but temporally delayed laser pulses, which are noncollinearly overlapping in the generation medium. …”
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  4. 3004

    Efficiency of dopant-induced ignition of helium nanoplasmas by A Heidenreich, B Grüner, M Rometsch, S R Krishnan, F Stienkemeier, M Mudrich

    Published 2016-01-01
    “…Helium nanodroplets irradiated by intense near-infrared laser pulses ignite and form highly ionized nanoplasmas even at laser intensities where helium is not directly ionized by the optical field, provided the droplets contain a few dopant atoms. …”
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  5. 3005

    Birefringence and Anisotropy of the Losses Due to Two-Photon Absorption of Femtosecond Pulses in Crystals by Valeri Kovalev, George Krasin

    Published 2024-07-01
    “…In such a geometry of interaction in a Ca<sub>3</sub>(VO<sub>4</sub>)<sub>2</sub> crystal, the effective TPA coefficient for 300 fs laser pulses at <i>θ</i> = 45° is 3.5 ± 0.5 times lower than its maximum at <i>θ</i> = 0°, which is more than two times higher than reported earlier in the literature.…”
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  6. 3006

    Simultaneous nonlinear spectral broadening and temporal contrast enhancement of ultrashort pulses in a multi-pass cell by Jaismeen Kaur, Louis Daniault, Zhao Cheng, Oscar Tourneur, Olivier Tcherbakoff, Fabrice Réau, Jean-François Hergott, Rodrigo Lopez-Martens

    Published 2023-01-01
    “…We study both numerically and experimentally the use of two third-order nonlinear temporal filtering techniques, namely nonlinear ellipse rotation and cross-polarized wave generation, for simultaneous nonlinear spectral broadening and temporal contrast enhancement of mJ energy, 30 fs titanium:sapphire laser pulses in a multi-pass cell. In both cases, a contrast enhancement greater than 3 orders of magnitude is observed, together with record high conversion efficiencies. …”
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  7. 3007

    Effect of the laser wavelength: A long story of laser-plasma interaction physics for Inertial Confinement Fusion Teller Medal Lecture by Labaune Christine

    Published 2013-11-01
    “…A long-term program on laser-plasma interaction physics has been pursued to understand the propagation and the coupling of laser pulses in plasmas for a wide range of parameters.…”
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  8. 3008

    Non-sequential double ionization of Ar: from the single- to the many-cycle regime by M Kübel, K J Betsch, Nora G Kling, A S Alnaser, J Schmidt, U Kleineberg, Y Deng, I Ben-Itzhak, G G Paulus, T Pfeifer, J Ullrich, R Moshammer, M F Kling, B Bergues

    Published 2014-01-01
    “…Argon atoms are exposed to intense laser pulses with a center wavelength around 790 nm and the momenta of electrons and ions generated in the double ionization process are measured in coincidence using a reaction microscope. …”
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  9. 3009

    Generation of Pseudoscalar Bosons by Stimulated Raman Scattering of Light in Dielectric Media by Gorelik V.S.

    Published 2015-01-01
    “…The excitation of stimulated Raman scattering was with using of solid state laser YAG:Nd3+, generating intense (up to 1 TW/cm2) ultrashort (60 ps) laser pulses with energy 10 mJ and frequency repetition 10 Hz. …”
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  10. 3010

    Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation by Xin Zheng, Cong Cong, Yuhao Lei, Jianjun Yang, Chunlei Guo

    Published 2018-06-01
    “…We report on the formation of slantwise-oriented periodic subwavelength ripple structures on chromium surfaces irradiated by single-beam femtosecond laser pulses at normal incidence. Unexpectedly, the ripples slanted in opposite directions on each side the laser-scanned area, neither perpendicular nor parallel to the laser polarization. …”
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  11. 3011

    Optical generation of intense ultrashort magnetic pulses at the nanoscale by Anagnostis Tsiatmas, Evangelos Atmatzakis, Nikitas Papasimakis, Vassili Fedotov, Boris Luk'yanchuk, Nikolay I Zheludev, F Javier García de Abajo

    Published 2013-01-01
    “…We show that a bimetallic nanoring illuminated by femtosecond laser pulses responds with transient thermoelectric currents of picosecond duration, which in turn induce Tesla-scale magnetic fields in the ring cavity. …”
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  12. 3012

    Terawatt-class femtosecond long-wave infrared laser by Igor. V. Pogorelsky, Mikhail N. Polyanskiy, Marcus Babzien, Andrew Simmonds, Mark A. Palmer

    Published 2024-04-01
    “…We utilized a nonlinear post-compression technique to generate 675-fs, 9.2-μm CO2 laser pulses with a peak power of 1.6 TW. This achievement represents the highest peak power ever attained in the femtosecond pulse format within the long-wave infrared (LWIR) spectral range. …”
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  13. 3013

    Laser-wakefield acceleration of electron beams in a low density plasma channel by T. P. A. Ibbotson, N. Bourgeois, T. P. Rowlands-Rees, L. S. Caballero, S. I. Bajlekov, P. A. Walker, S. Kneip, S. P. D. Mangles, S. R. Nagel, C. A. J. Palmer, N. Delerue, G. Doucas, D. Urner, O. Chekhlov, R. J. Clarke, E. Divall, K. Ertel, P. S. Foster, S. J. Hawkes, C. J. Hooker, B. Parry, P. P. Rajeev, M. J. V. Streeter, S. M. Hooker

    Published 2010-03-01
    “…The generation of quasimonoenergetic electron beams, with energies greater than 500 MeV, in a laser-plasma accelerator driven by 2.5 J, 80 fs laser pulses guided in a low density plasma channel, is investigated. …”
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  14. 3014

    Signatures of nonthermal melting by Tobias Zier, Eeuwe S. Zijlstra, Alan Kalitsov, Ioannis Theodonis, Martin E. Garcia

    Published 2015-09-01
    “…Intense ultrashort laser pulses can melt crystals in less than a picosecond but, in spite of over thirty years of active research, for many materials it is not known to what extent thermal and nonthermal microscopic processes cause this ultrafast phenomenon. …”
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  15. 3015

    Frustrated tunnelling ionization during strong-field fragmentation of D3+ by J McKenna, A M Sayler, B Gaire, Nora G Kling, B D Esry, K D Carnes, I Ben-Itzhak

    Published 2012-01-01
    “…We reveal surprisingly high kinetic energy release in the intense-field fragmentation of D _3 ^+ to D ^+  + D ^+  + D with 10 ^16  W cm ^−2 , 790 nm, 40 fs (and 7 fs) laser pulses. This feature strongly mimics the behaviour of the D ^+  + D ^+  + D ^+ channel. …”
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  16. 3016

    Double pulse all-optical coherent control of ultrafast spin-reorientation in an antiferromagnetic rare-earth orthoferrite by N. E. Khokhlov, A. E. Dolgikh, B. A. Ivanov, A. V. Kimel

    Published 2024-05-01
    “…A pair of circularly polarized laser pulses of opposite helicities are shown to control the route of spin reorientation phase transition in the rare-earth antiferromagnetic orthoferrite (Sm0.55Tb0.45)FeO3. …”
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  17. 3017

    Improving Adhesive Bonding of Al Alloy by Laser-Induced Micro–Nano Structures by Guang Li, Mingwei Lei, Chen Liang, Kai Li, Benhai Li, Xiaohua Wang, Junlong Wang, Zhipeng Wei

    Published 2022-01-01
    “…When laser spot spacing was smaller than the size of the laser spot, micro–nano composite structures were induced by multiple laser pulses, which would improve shear strength by increasing the contact area between Al alloy and adhesive. …”
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  18. 3018

    Curved plasma channels: Kerr lens and Airy prism by Kasparian Jérôme, Wolf Jean-Pierre

    Published 2009-01-01
    “…Under experimental conditions representative of laser filamentation experiments of high-power ultrashort laser pulses in air and condensed media, the Kerr lens induces transverse energy fluxes much larger than the Airy “prism” at the main peak. …”
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  19. 3019

    Backward nitrogen lasing actions induced by femtosecond laser filamentation: influence of duration of gain by Hongqiang Xie, Guihua Li, Wei Chu, Bin Zeng, Jinping Yao, Chenrui Jing, Ziting Li, Ya Cheng

    Published 2015-01-01
    “…We experimentally investigate generation of backward 357 nm N _2 laser in a gas mixture of N _2 /Ar using 800 nm femtosecond laser pulses, and examine the involved gain dynamics based on pump-probe measurements. …”
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  20. 3020

    Powerful Elliptically Polarized Terahertz Radiation from Oscillating-Laser-Driven Discharge Surface Currents by Egor Dmitriev, Nikolai Bukharskii, Philipp Korneev

    Published 2023-07-01
    “…It is shown that the irradiation of a solid target surface by short relativistic laser pulses at small angles provides the excitation of strong compact relativistic discharge current pulses, propagating in a certain direction. …”
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