Results 21 to 30 of about 275,187 (297)
Thermal stability of laser treated die material for semi-solid metal forming [PDF]
, 2009 This paper presents laser surface modification work performed to improve the lifetime of die materials. Die material AISI H13, with typical hardness in the range of 42 to 48 HRC, offers high wear and corrosion resistance.
Brabazon, Dermot +4 more
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Superposition of vortex beams generated by polarization conversion in uniaxial crystals
Scientific Reports, 2022 An optical system comprising a c-cut uniaxial crystal positioned between two axicons and illuminated by a Gaussian or a Laguerre–Gauss mode was used to demonstrate the generation of various vector vortex beams.
Alexandru Craciun, Oana-Valeria Grigore
doaj +1 more source
Photonics, 2023 A dual-wavelength alternating electro-optic (EO) Q-switched laser operating at 1064 and 1319 nm is designed, which takes the structure of double the gain crystals and a single EO modulator with the common Q-switching bias voltage (CQBV).
Jingdong Sun +4 more
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Melt Pool and Keyhole Behavior Analysis for Deep Penetration Laser Welding [PDF]
, 2010 One usually defines the main characteristic of the welding performances of a given laser system by its “penetration curve” that corresponds to the welding depth as a function of the welding speed Vw for a given set of operating parameters.
R Fabbro, Fabbro, R, FABBRO, Rémy
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Crystals, 2021 We experimentally studied the interaction between a millisecond pulse laser and silicon avalanche photodiode (Si-APD) in an external capacitance circuit.
Liang Chen +4 more
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13.5 μJ, 20 kHz Repetition Rate, Single Frequency Pr3+:YLF Master Oscillator Power Amplifier System
Photonics, 2023 This article describes a master oscillator and power amplifier (MOPA) system with a single longitudinal mode (SLM) and high-repetition-frequency Pr3+:YLF active medium that was end-pumped by two 444 nm laser diodes.
Weicheng Dai +4 more
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Scientific Reports, 2017 Effect of charge carrier confinement and ultra-low disorder acquainted in AlGaAs/GaAs multi-quantum well system is investigated via Magneto-photoluminescence spectroscopy.
S. Haldar +6 more
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Results in Physics, 2022 In this work we report on the characteristics of laser ignition of CH4-air mixtures, using multi-point (up to four points) ignition with single-pulse beams as well as with trains of two pulses.
Ciprian Dumitrache +3 more
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Diode-pumped Solid-state Lasers for Applications in Quantum Technologies
, 2022 Paper JTh3A.17We present research on the development of diode-pumped solid-state lasers suitable for quantum technologies applications at 698.45 nm and 780.24 nm targeting strontium (Sr) and rubidium (Rb ...
MacKenzie, M. +9 more
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IEEE Photonics Journal, 2016 We demonstrated a high average power, high beam quality, narrow linewidth, quasicontinuous wave (QCW) diode-pumped 1064-nm Nd:YAG amplifier. A narrow-linewidth QCW pulse Nd:YAG oscillator was employed as the seed laser, providing a maximum average power ...
Chuan Guo +12 more
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