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3461
High Energy Double Peak Pulse Laser Induced Plasma Spectroscopy for Metal Characterization Using a Passively Q-Switched Laser Source and CCD Detector
Published 2019-08-01“…The latter delivered structured laser pulses at a repetition rate of up to 20 Hz, including two energy peaks of about 100 mJ each with a relative temporal spacing of about 80 µs. …”
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3462
Energy partitioning in laser-induced millimeter-sized spherical cavitation up to the fourth oscillation
Published 2023-05-01“…To investigate the energy partitioning up to the fourth oscillation of a millimeter-scale spherical cavitation bubble induced by laser, we used nanosecond laser pulses to generate highly spherical cavitation bubbles and shadowgraphs to measure the radius-time curve. …”
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3463
Photonic Signal Processing in Phase-Coded Lidar System
Published 2023-05-01“…This photonics-based structure greatly decreases the sampling frequency of the detector without extending the width of the laser pulses, which achieves high resolution with low sampling speed. …”
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3464
A fractional dual-phase-lag thermoelastic model for a solid half-space with changing thermophysical properties involving two-temperature and non-singular kernels
Published 2024-02-01“…Based on the proposed model, the thermodynamic response of an unlimited, constrained thermoelastic medium subjected to laser pulses was considered. It was taken into account that the thermal elastic properties of the medium, such as the conductivity coefficient and specific heat, depend on the temperature. …”
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3465
Nanosecond Laser Induced Surface Structuring of Cadmium after Ablation in Air and Propanol Ambient
Published 2022-10-01“…In the present study KrF Excimer laser has been employed to irradiate the Cadmium (Cd) targets for various number of laser pulses of 500, 1000, 1500 and 2000, at constant fluence of 3.6 J cm<sup>−2</sup>. …”
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3466
Laser-driven acceleration of quasi-monoenergetic, near-collimated titanium ions via a transparency-enhanced acceleration scheme
Published 2019-01-01“…Numerical simulations show that the foils become transparent to the laser pulses, undergoing relativistically induced transparency (RIT), resulting in a two-stage acceleration process which lasts until ∼2 ps after the onset of RIT. …”
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3467
Efficient generation of nitrogen vacancy centers by laser writing close to the diamond surface with a layer of silicon nanoballs
Published 2020-01-01“…With a thick layer of silicon (Si) nanoballs coated, diamond surface was irradiated by high-fluence femtosecond laser pulses. A large number of NV ^− centers were created around the laser ablation crater area without thermal annealing. …”
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3468
Hybrid Spintronics/CMOS Logic Circuits Using All-Optical-Enabled Magnetic Tunnel Junction
Published 2022-01-01“…Optical switching using ultrashort laser pulses, on the other hand, is able to achieve sub-picosecond switching operation in magnetic tunnel junctions (MTJs). …”
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3469
Towards critical and supercritical electromagnetic fields
Published 2023-01-01“…Here we discuss the potential for future lasers to overcome such obstacles, by combining the concept of multiple colliding laser pulses with that of frequency upshifting via a tailored laser–plasma interaction. …”
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3470
Pulse laser range finder for military applications
Published 2015-01-01“…The impact of the flash supply voltage change on the number and energy of the emitted laser pulses is analyzed. The influence of temperature on the generation of the laser beam is also analyzed. …”
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3471
Unidirectional Optical Kerr Transmittance in Hierarchical Carbon/Platinum Nanostructures
Published 2020-07-01“…Unidirectional optically controlled laser pulses dependent on irradiance and polarization in a two-wave mixing was proposed with potential nanophotonic and nanoelectronic applications. …”
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3472
Near-infrared dye-loaded magnetic nanoparticles as photoacoustic contrast agent for enhanced tumor imaging
Published 2016-09-01“…Given the strong absorption of near-infrared laser pulses, SPIO@DSPE-PEG/ICG NPs with a uniform diameter of ~28 nm could significantly enhance PA signals. …”
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3473
Nanostructured In3SbTe2 antennas enable switching from sharp dielectric to broad plasmonic resonances
Published 2022-04-01“…By crystallizing the IST with microsecond laser pulses, we switched individual antennas from narrow dielectric to broad plasmonic resonances. …”
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3474
Regular Nanowire Formation on Fe-Based Metal Glass by Manipulation of Surface Waves
Published 2021-09-01“…The theory is further verified by the observation of nanowire structure disappearance at the larger time delays of two laser pulses.…”
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3475
Laser ablation of silicon with THz bursts of femtosecond pulses
Published 2021-06-01“…Abstract In this work, we performed an experimental investigation supported by a theoretical analysis, to improve knowledge on the laser ablation of silicon with THz bursts of femtosecond laser pulses. Laser ablated craters have been created using 200 fs pulses at a wavelength of 1030 nm on silicon samples systematically varying the burst features and comparing to the normal pulse mode (NPM). …”
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3476
Femtosecond Laser Assisted Crystallization of Gold Thin Films
Published 2021-04-01“…Our method is based on a non-melt process using highly overlapped ultrashort laser pulses at a fluence below the damage threshold. …”
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3477
Conical Emission Induced by the Filamentation of Femtosecond Vortex Beams in Water
Published 2023-11-01“…Conical emission is a typical nonlinear phenomenon that occurs during the filamentation of femtosecond laser pulses in transparent media. In this work, the conical emission induced by two kinds of typical vortex beams (i.e., Laguerre–Gaussian (LG) and Bessel–Gaussian (BG) beams) in water is experimentally studied. …”
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3478
Study of Optical and Structural Properties of Silver Solution Ag Nanoparticles
Published 2022-12-01“…Colloidal nanoparticles attended with a pulsed Nd:YAG, Q-switch in water distilled at wavelength (1064nm) and frequency rate (1Hz) and pulse duration (10ns) and silver nanoparticles attended without the use of surface tensile as laser removal of the silver target (10ns) was attended by silver nanoparticles without the use of surface tensile as laser removal of the silver target (10ns) was attended High purity) reached purity (99.9) immersed in distilled water (deionized) where the metal target was first removed from silver placed in (5mL) from distilled water, a specific laser card (260mJ) and a number of pulse fixed laser pulses(50, 100, 150) respectively, where the size and optical characteristics of nanoparticles were distinguished by the powerful electron microscope (TEM) and visible UV spectrometry (visible-UV), respectively, and the peaks of surface plasma resonance (SPR) showed an increase at (403) and (405) Nm, which is therefore within the permitted range, showed a higher peak of 405 nm and showed sharp spectra, although the width of the spectra slightly increased and the energy gaps showed an increase in the amount of 2.54eV at pulse (50). …”
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3479
Compressive Sensing Based Three-Dimensional Imaging Method with Electro-Optic Modulation for Nonscanning Laser Radar
Published 2020-05-01“…In conventional nonscanning time-of-flight (TOF) LiDAR, the intensity map is obtained by a detector array and the depth map is measured in the time domain which requires costly sensors and short laser pulses. To overcome such limitations, this paper presents a nonscanning 3D laser imaging method that combines compressive sensing (CS) techniques and electro-optic modulation. …”
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3480
Design and Analysis of Femtosecond Laser-Generated Metasurface for Optical Filter Application
Published 2022-10-01“…This work investigates a Fano filter design based on a nano-hole array, patterned in fused silica using high-energy ultrafast femtosecond laser pulses. After carefully observing the experimental results, the structural profile of the nano-holes is numerically modeled in a 3D finite-difference time-domain-based software platform. …”
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