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3381
Imaging and controlling coherent phonon wave packets in single graphene nanoribbons
Published 2023-06-01“…Here, we demonstrate that the vibrational coherences induced by broadband laser pulses on a single graphene nanoribbon (GNR) can be probed by femtosecond coherent anti-Stokes Raman spectroscopy (CARS) when performed in a scanning tunnelling microscope (STM). …”
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3382
Designing a 1550 nm Pulsed Semiconductor Laser-Emission Module Based on a Multiquantum-Well Equivalent Circuit Model
Published 2023-03-01“…In addition to the power-current features of the actual laser, the critical voltage of the emission module and laser pulses were tested. By comparing the test and simulation results, the effectiveness of the proposed method was confirmed.…”
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3383
Silver Nanoplate Composites as Nonlinear Saturable Absorbers for a Q-Switched Laser
Published 2022-11-01“…This study first demonstrates the potential of silver nanoplates as saturable absorbers in generating stable laser pulses with high energy.…”
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3384
Formation of Oriented Nanowires from Mixed Metal Oxides
Published 2023-09-01“…Using ablation with <i>ps</i> laser pulses, we were able to produce new composite materials or materials containing unstable phases.…”
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3385
Fast reversible laser-induced crystallization of Sb-rich Zn-Sb-Se phase change material with excellent stability
Published 2015-07-01“…Typically, there is ∼105 resistance ratio and ∼14% relative reflectivity change in Zn19Sb45.7Se35.3 film when switched by electricity or laser pulses between amorphous and crystalline states. …”
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3386
Enhanced proton acceleration in an applied longitudinal magnetic field
Published 2016-01-01“…The required kT-level magnetic fields are becoming feasible due to a significant progress that has been made in generating magnetic fields with laser-driven coils using ns-long laser pulses. The possibility of improving characteristics of laser-driven proton beams using such fields is a strong motivation for further development of laser-driven magnetic field capabilities.…”
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3387
Characterization of Electromagnetic Pulses Generated from Plasma Associated with Laser Filaments-Excited Aluminum Alloy Interaction
Published 2022-06-01“…The relationship between the energy of EMPs and the width and energy of the laser pulses is presented and discussed. These findings are beneficial for gaining insight into the EMP generation mechanism, spatial distribution, and transmission, and for providing more information for the design of EMPs’ shielding.…”
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3388
Integration of Tb/Co multilayers within optically switchable perpendicular magnetic tunnel junctions
Published 2019-12-01“…The helicity-independent single-shot switching of the magnetization in the Tb/Co multilayered stack was achieved using either 60 fs-long or 5 ps laser pulses with incident fluences down to 4.7 mJ/cm2. …”
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3389
Laser-driven multi-MeV high-purity proton acceleration via anisotropic ambipolar expansion of micron-scale hydrogen clusters
Published 2022-10-01“…Abstract Multi-MeV high-purity proton acceleration by using a hydrogen cluster target irradiated with repetitive, relativistic intensity laser pulses has been demonstrated. Statistical analysis of hundreds of data sets highlights the existence of markedly high energy protons produced from the laser-irradiated clusters with micron-scale diameters. …”
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3390
Response of NIH 3T3 Fibroblast Cells on Laser-Induced Periodic Surface Structures on a 15×(Ti/Zr)/Si Multilayer System
Published 2020-12-01“…The multilayer 15×(Ti/Zr)/Si thin films were modified by femtosecond laser pulses in air to induce the following modifications: (i) mixing of components inside of the multilayer structures, (ii) the formation of an ultrathin oxide layer at the surfaces, and (iii) surface nano-texturing with the creation of laser-induced periodic surface structure (LIPSS). …”
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3391
Hysteresis and Photoconductivity of Few‐Layer ReSe2 Field Effect Transistors Enhanced by Air Pressure
Published 2023-08-01“…The transient behavior of the device exposed to laser pulses shows a faster response and a higher photodetection efficiency at ambient pressure, with the highest signal‐to‐noise ratio at the valley of the transfer curve between p‐ and n‐type conduction.…”
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3392
Preparation, characterization, and nonlinear optical properties of graphene oxide thin film doped with low chirality metallic SWCNTs
Published 2021-05-01“…We have investigated their nonlinear optical properties using open and closed Z-scan technique at Nd:YAG laser at 1064 nm laser pulses (7 ns, 10 Hz). The nonlinear absorption coefficient β, nonlinear refractive index n2, and third order nonlinear susceptibility χ3 were calculated. …”
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3393
Nanoscatterer-Assisted Fluorescence Amplification Technique
Published 2023-10-01“…Amplification of up to a factor of 40 is experimentally demonstrated in ultrapure water with dispersed TiO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> nanoparticles (30 to 50 nm in diameter) and fluorescein dye at 200 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="sans-serif">μ</mi></semantics></math></inline-formula>mol concentration (pumped with 5 ns long, 3 mJ laser pulses at 490 nm). The measurements show a measurable reduction in linewidth at the emission peak, indicating that feedback-induced stimulated emission contributes to the large gain observed.…”
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3394
Ultrashort pulsed laser induced complex surface structures generated by tailoring the melt hydrodynamics
Published 2022-03-01“…The method employs spatially controlled double fs laser pulses to actively regulate the hydrodynamic microfluidic motion of the melted layer that gives rise to the structures formation. …”
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3395
Dual-Laser-Induced Breakdown Thermometry via Sound Speed Measurement: A New Procedure for Improved Spatiotemporal Resolution
Published 2020-05-01“…To eliminate the interference, in present work, a new measurement procedure was proposed, where two individual laser pulses with optimized firing order and delay time were employed. …”
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3396
Laser-driven production with advanced targets of Copper-64 for medical applications
Published 2023-07-01“…In this respect, a promising alternative is laser-driven proton accelerators based on the interaction of superintense laser pulses with target materials. Because of their potential compactness and flexibility, they are under investigation for several applications ranging from materials science to nuclear medicine. …”
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3397
Bi doped LaOCl and LaOF thin films grown by pulsed laser deposition
Published 2024-03-01“…The amount of ablated material present on the substrate was much less for LaOF:Bi compared to LaOCl:Bi, which is attributed to the greater bandgap and hence weaker absorption of the laser pulses for LaOF:Bi. Therefore phosphors based on LaOCl as the host material were found to be preferable over LaOF under the PLD conditions used in this study.…”
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3398
Multipath Data Storage by Third-Order Nonlinear Optical Properties in Zinc Oxide Nanostructures
Published 2020-08-01“…By recording the third-order nonlinear optical response exhibited by the nanomaterials, a straightforward XOR encryption system controlled by laser pulses was developed. Identification of nonlinear optical signals in propagation through the samples was monitored by a standard optical Kerr gate configuration. …”
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3399
Carrier-envelope-phase-dependent dissociation of hydrogen
Published 2013-01-01“…We studied the dependence of dissociative ionization in H _2 on carrier-envelope phase (CEP) of few-cycle (6 fs) near-infrared laser pulses. For low-energy channels, we present the first experimental observation of the CEP dependence of combined dissociation yield (with protons emitted in both directions), as well as the highest degree of asymmetry reported to date (40%). …”
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3400
Revealing the interlayer van der Waals coupling of bi-layer and tri-layer MoS2 using terahertz coherent phonon spectroscopy
Published 2022-12-01“…The layers’ THz vibration is displacively stimulated and temporally retrieved by near-UV femtosecond laser pulses, revealing Raman-active and Raman-inactive modes in one measurement. …”
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