-
3601
Pulse recording of dynamic holograms in bismuth silicate crystal in a broad wavelength range
Published 2022-12-01“…The formation of dynamic holograms in a photorefractive bismuth silicate crystal by nanosecond laser pulses with a change in the radiation wavelength is studied. …”
Get full text
Article -
3602
Investigation of the Influence of Pulse Duration and Application Mode on Microsecond Laser Microsurgery of the Retinal Pigment Epithelium
Published 2023-06-01“…Moreover, optical coherence tomography (OCT)-based RFD was investigated in an ex vivo experiment, utilizing nine porcine eyes that were exposed to laser pulses of 8, 12, 16 and 20 µs duration (wavelength: 532 nm, exposure area: 90 × 90 µm<sup>2</sup>, radiant exposure: 247 to 1975 mJ/µm<sup>2</sup>). …”
Get full text
Article -
3603
Ultrafast quasi-three-dimensional imaging
Published 2023-01-01“…Orthogonally polarized laser pulses are adopted to illuminate reflection-transmission views, and binarization techniques are employed to extract contours, forming the corresponding two-dimensional matrix. …”
Get full text
Article -
3604
Programmable chalcogenide-based all-optical deep neural networks
Published 2022-05-01“…The network’s nonlinear activation function (NLAF) relies on the nonlinear response of Ge2Sb2Te5 to femtosecond laser pulses. We measured the sub-picosecond time-resolved optical constants of Ge2Sb2Te5 at a wavelength of 1500 nm and used them to design a high-speed Ge2Sb2Te5-tuned microring resonator all-optical NLAF. …”
Get full text
Article -
3605
Route to Chaos in a Unidirectional Ring of Three Diffusively Coupled Erbium-Doped Fiber Lasers
Published 2023-07-01“…This regime exhibits potential for applications that demand short laser pulses with a substantial increase in peak power, reaching nearly 20 times higher levels compared to the continuous mode when the lasers are uncoupled. …”
Get full text
Article -
3606
Compact chirped fiber Bragg gratings for single-photon generation from quantum dots
Published 2023-10-01“…Yet, the existing methods of generating chirped laser pulses to excite a quantum emitter are bulky, lossy, and mechanically unstable, which severely hampers the prospects of a quantum dot photon source. …”
Get full text
Article -
3607
ATmospheric LIDar (ATLID): Pre-Launch Testing and Calibration of the European Space Agency Instrument That Will Measure Aerosols and Thin Clouds in the Atmosphere
Published 2021-01-01“…In order to achieve this objective ATLID emits short duration laser pulses in the ultraviolet, at a repetition rate of 51 Hz, while pointing in a near nadir direction along track of the satellite trajectory. …”
Get full text
Article -
3608
350-2500 nm supercontinuum white laser enabled by synergic high-harmonic generation and self-phase modulation
Published 2023-03-01“…Due to the efficient second-order nonlinearity (2nd-NL) up-conversion and significant 3rd-NL SPM effect both in the pump and HHG laser pulses, 350-2500 nm supercontinuum white laser is eventually obtained with 17 μJ per pulse under pump of 45 μJ per pulse mid-infrared femtosecond laser corresponding to an average high conversion efficiency of 37%. …”
Get full text
Article -
3609
X-ray Emission Hazards from Ultrashort Pulsed Laser Material Processing in an Industrial Setting
Published 2021-11-01“…Interactions between ultrashort laser pulses with intensities larger than 10<sup>13</sup> W/cm<sup>2</sup> and solids during material processing can lead to the emission of X-rays with photon energies above 5 keV, causing radiation hazards to operators. …”
Get full text
Article -
3610
Periodical Ultra-Modulation of Broadened Laser Spectra in Dielectrics at Variable Ultrashort Laser Pulsewidths: Ultrafast Plasma, Plasmonic and Nanoscale Structural Effects
Published 2023-11-01“…The underlying sub- and/or near-wavelength longitudinal nanoscale Bragg gratings produced by femtosecond laser pulses in this regime could be visualized in less hard lithium niobate by atomic force microscopy cross-sectional analysis in the correlation with the corresponding sideband spectral components, supporting the anticipated Bragg filtering mechanism and envisioning the corresponding grating periods.…”
Get full text
Article -
3611
2D layered MSe2 (M = Hf, Ti and Zr) for compact lasers: nonlinear optical properties and GHz lasing
Published 2022-06-01“…As a result, the pulsed waveguide lasers are able to deliver approximately 6-GHz laser pulses with a signal-to-noise ratio of over 45 dB. …”
Get full text
Article -
3612
Remote Polar Boundary Layer Wind Profiling Using an All-Fiber Pulsed Coherent Doppler Lidar at Zhongshan Station, Antarctica
Published 2023-05-01“…This system, based on the 1550 nm all-fiber components, employs a 100 mm telescope with a long focal length of 632.6 mm to emit and collect laser pulses. It provides the ability to measure vertically resolved wind fields with a spatial resolution of 30 m and a temporal resolution of 1 min; the maximum detection range is up to 1.5 km in Antarctica. …”
Get full text
Article -
3613
Atomic Defect Induced Saturable Absorption of Hexagonal Boron Nitride in Near Infrared Band for Ultrafast Lasing Applications
Published 2021-11-01“…In addition, the defective h-BN has been applied as a new saturable absorber (SA) to generate laser pulses through the passively Q-switched mode-locking configuration. …”
Get full text
Article -
3614
AN INTEGRATED APPROACH TO ACCURATE DEM GENERARTION USING AIRBOREN FULL WAVEFORM LIDAR DATA
Published 2012-09-01“…For any given TIN facet, the full waveforms of the return associated with the laser pulses interacting with this TIN facet were examined near the surface for any terrain echoes. …”
Get full text
Article -
3615
Magnetic domain scanning imaging using phase-sensitive THz-pulse detection
Published 2022-09-01“…We generate THz pulses by fs laser pulses in magnetized CoFeB/Pt heterostructures based on spin currents. …”
Get full text
Article -
3616
Diamond Photoconductive Antenna for Terahertz Generation Equipped with Buried Graphite Electrodes
Published 2023-01-01“…Several electrodes consisting of the arrays of buried pillars connected by the surface graphite stripes were produced inside an HPHT diamond crystal using femtosecond and nanosecond laser pulses. Combining different pairs of the electrodes, a series of PCAs with various electrode interspaces was formed. …”
Get full text
Article -
3617
Exploring fs-laser irradiation damage subthreshold behavior of dielectric mirrors via electrical measurements
Published 2024-01-01“…${\mathrm{HfO}}_2$ and ${\mathrm{ZrO}}_2$ thin films deposited on fused silica substrates by pulsed laser deposition at various ${\mathrm{O}}_2$ pressures for defect and stoichiometry control were irradiated by Gaussian, ultrashort laser pulses (800 nm, 10 Hz, 70 fs) in a wide range of fluences. …”
Get full text
Article -
3618
Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite
Published 2023-03-01“…Dynamic far-field optical diffraction of the inscribing ultrashort laser pulses also demonstrated the accumulative inscription character, depending on the pulse energy and the laser exposure. …”
Get full text
Article -
3619
Iridium-Based Nanohybrids: Synthesis, Characterization, Optical Limiting, and Nonlinear Optical Properties
Published 2023-07-01“…Furthermore, their nonlinear optical (NLO) response and optical limiting (OL) efficiency are studied by means of the Z-scan technique, employing 4 ns laser pulses at 532 and 1064 nm. The results demonstrate that the PVP-Ir/IrO<sub>2</sub> and Ir/IrO<sub>2</sub> systems exhibit exceptional OL performance, while PVP-IrO<sub>2</sub> presents very strong saturable absorption (SA) behavior, indicating that the present Ir-based nanohybrids could be strong competitors to other nanostructured materials for photonic and optoelectronic applications. …”
Get full text
Article -
3620
2D molybdenum carbide (Mo2C)/fluorine mica (FM) saturable absorber for passively mode-locked erbium-doped all-fiber laser
Published 2020-04-01“…The pulse duration and average output power of the laser pulses were 313 fs and 64.74 mW, respectively. …”
Get full text
Article