Showing 3,601 - 3,620 results of 3,780 for search '"laser pulse"', query time: 0.18s Refine Results
  1. 3601

    Pulse recording of dynamic holograms in bismuth silicate crystal in a broad wavelength range by Ivan G. Dadenkov, Alexei L. Tolstik, Yuri I. Miksiuk, Konstantin A. Saechnikov

    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
  2. 3602

    Investigation of the Influence of Pulse Duration and Application Mode on Microsecond Laser Microsurgery of the Retinal Pigment Epithelium by Christian Burri, Simon Salzmann, Mylène Amstutz, Leonie Hoffmann, Boris Považay, Christoph Meier, Martin Frenz

    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
  3. 3603

    Ultrafast quasi-three-dimensional imaging by Yiling Lian, Lan Jiang, Jingya Sun, Jiadong Zhou, Yao Zhou

    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
  4. 3604

    Programmable chalcogenide-based all-optical deep neural networks by Teo Ting Yu, Ma Xiaoxuan, Pastor Ernest, Wang Hao, George Jonathan K., Yang Joel K. W., Wall Simon, Miscuglio Mario, Simpson Robert E., Sorger Volker J.

    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
  5. 3605

    Route to Chaos in a Unidirectional Ring of Three Diffusively Coupled Erbium-Doped Fiber Lasers by José Octavio Esqueda de la Torre, Juan Hugo García-López, Rider Jaimes-Reátegui, Guillermo Huerta-Cuellar, Vicente Aboites, Alexander N. Pisarchik

    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
  6. 3606

    Compact chirped fiber Bragg gratings for single-photon generation from quantum dots by Vikas Remesh, Ria G. Krämer, René Schwarz, Florian Kappe, Yusuf Karli, Malte Per Siems, Thomas K. Bracht, Saimon Filipe Covre da Silva, Armando Rastelli, Doris E. Reiter, Daniel Richter, Stefan Nolte, Gregor Weihs

    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
  7. 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 by João Pereira do Carmo, Geraud de Villele, Kotska Wallace, Alain Lefebvre, Kaustav Ghose, Thomas Kanitz, François Chassat, Bertrand Corselle, Thomas Belhadj, Paolo Bravetti

    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
  8. 3608

    350-2500 nm supercontinuum white laser enabled by synergic high-harmonic generation and self-phase modulation by Lihong Hong, Chenyang Hu, Yuanyuan Liu, Huijun He, Liqiang Liu, Zhiyi Wei, Zhi-Yuan Li

    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
  9. 3609

    X-ray Emission Hazards from Ultrashort Pulsed Laser Material Processing in an Industrial Setting by Ulf Stolzenberg, Mayka Schmitt Rahner, Björn Pullner, Herbert Legall, Jörn Bonse, Michael Kluge, Andreas Ortner, Bernd Hoppe, Jörg Krüger

    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
  10. 3610

    Periodical Ultra-Modulation of Broadened Laser Spectra in Dielectrics at Variable Ultrashort Laser Pulsewidths: Ultrafast Plasma, Plasmonic and Nanoscale Structural Effects by Sergey Kudryashov, Pavel Danilov, Alexey Gorevoy, Volodymyr Kovalov, Mikhail Kosobokov, Andrey Akhmatkhanov, Boris Lisjikh, Anton Turygin, Evgeny Greshnyakov, Vladimir Shur

    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
  11. 3611

    2D layered MSe2 (M = Hf, Ti and Zr) for compact lasers: nonlinear optical properties and GHz lasing by Li Genglin, Du Wenhui, Sun Shuo, Lu Qingming, Chen Zhixiang, Liu Hongliang, Ma Yandong, Sun Xiaoli, Jia Yuechen, Chen Feng

    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
  12. 3612

    Remote Polar Boundary Layer Wind Profiling Using an All-Fiber Pulsed Coherent Doppler Lidar at Zhongshan Station, Antarctica by Hui Li, Zhangjun Wang, Quanfeng Zhuang, Rui Wang, Wentao Huang, Chao Chen, Xianxin Li, Xiufen Wang, Boyang Xue, Yang Yu, Xin Pan

    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
  13. 3613

    Atomic Defect Induced Saturable Absorption of Hexagonal Boron Nitride in Near Infrared Band for Ultrafast Lasing Applications by Chen Cheng, Ziqi Li, Ningning Dong, Rang Li, Jun Wang, Feng Chen

    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
  14. 3614

    AN INTEGRATED APPROACH TO ACCURATE DEM GENERARTION USING AIRBOREN FULL WAVEFORM LIDAR DATA by B. Hu, D. Gumerov, J.-G. Wang

    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
  15. 3615

    Magnetic domain scanning imaging using phase-sensitive THz-pulse detection by Finn-Frederik Stiewe, Tristan Winkel, Tobias Kleinke, Tobias Tubandt, Hauke Heyen, Lucas Vollroth, Ulrike Martens, Cai Müller, Jeffrey McCord, Jakob Walowski, Markus Münzenberg

    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
  16. 3616

    Diamond Photoconductive Antenna for Terahertz Generation Equipped with Buried Graphite Electrodes by Taras Viktorovich Kononenko, Kuralai Khamitzhanovna Ashikkalieva, Vitali Viktorovich Kononenko, Evgeny Viktorovich Zavedeev, Margarita Alexandrovna Dezhkina, Maxim Sergeevich Komlenok, Evgeny Evseevich Ashkinazi, Vladimir Valentinovich Bukin, Vitaly Ivanovich Konov

    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
  17. 3617

    Exploring fs-laser irradiation damage subthreshold behavior of dielectric mirrors via electrical measurements by Petrisor Gabriel Bleotu, Radu Udrea, Alice Dumitru, Olivier Uteza, Maria-Diana Mihai, Dan Gh Matei, Daniel Ursescu, Stefan Irimiciuc, Valentin Craciun

    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
  18. 3618

    Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite by Sergey Kudryashov, Alexey Rupasov, Mikhail Smayev, Pavel Danilov, Evgeny Kuzmin, Irina Mushkarina, Alexey Gorevoy, Anna Bogatskaya, Alexander Zolot’ko

    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
  19. 3619

    Iridium-Based Nanohybrids: Synthesis, Characterization, Optical Limiting, and Nonlinear Optical Properties by Nikolaos Chazapis, Michalis Stavrou, Georgia Papaparaskeva, Alexander Bunge, Rodica Turcu, Theodora Krasia-Christoforou, Stelios Couris

    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
  20. 3620

    2D molybdenum carbide (Mo2C)/fluorine mica (FM) saturable absorber for passively mode-locked erbium-doped all-fiber laser by Liu Sicong, Wang Yonggang, Lv Ruidong, Wang Jiang, Wang Huizhong, Wang Yun, Duan Lina

    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