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3681
Physicochemical Modifications on Thin Films of Poly(Ethylene Terephthalate) and Its Nanocomposite with Expanded Graphite Nanostructured by Ultraviolet and Infrared Femtosecond Lase...
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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3682
Effect of Auger recombination on transient optical properties in XUV and soft X-ray irradiated silicon nitride
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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3683
Method for developing a sub-10 fs ultrafast electron diffraction technology
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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3684
Metal Nanoparticles Deposited on Porous Silicon Templates as Novel Substrates for SERS
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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3685
Femtosecond laser induced damage threshold and incubation in l-threonine aminoacid crystal
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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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>
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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3687
XUV Fluorescence Detection of Laser-Cooled Stored Relativistic Ions
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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3688
Original Research. Photoacoustic Microscopy in Dental Medicine
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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3689
Simulation of laser drilling of Inconel X-750 and Ti-5Al-2.5Sn sheets using COMSOL
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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3690
Ultrafast-Laser-Induced Tailoring of Crystal-in-Glass Waveguides by Precision Partial Remelting
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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3691
Quantum vacuum processes in the extremely intense light of relativistic plasma mirror sources
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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3692
Picosecond Laser Shock Micro-Forming of Stainless Steel: Influence of High-Repetition Pulses on Thermal Effects
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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3693
AIRBORNE LASER BATHYMETRY FOR DOCUMENTATION OF SUBMERGED ARCHAEOLOGICAL SITES IN SHALLOW WATER
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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3694
Pressure-induced phase transformations during femtosecond-laser doping of silicon
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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3695
One-electron Oxidation of a Pyrenyl Photosensitizer Covalently Attached to DNA and Competition Between its Further Oxidation and DNA Hole Injection
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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3696
Far out-of-equilibrium spin populations trigger giant spin injection into atomically thin MoS2
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 -
3697
Monte Carlo simulations and photoacoustic experiments to compare imaging depth at 532 nm, 800 nm, and 1064 nm
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 -
3698
High frequency optogenetic activation of inputs to the lateral amygdala forms distant association with foot-shock
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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3699
Complementarity of neutron, XFEL and synchrotron crystallography for defining the structures of metalloenzymes at room temperature
Published 2022-09-01“…Here, data were measured from large single crystals and multiple microcrystals using neutrons, X-ray free-electron laser pulses, monochromatic synchrotron radiation and polychromatic (Laue) radiation light sources. …”
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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...
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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