Results 11 to 20 of about 55,820 (266)
Profiling of micrometer-sized laser beams in restricted volumes [PDF]
Applied Optics, 2012 We present a method for determining the 3D intensity distribution of directed laser radiation with micrometer resolution in restricted volumes. Our method is based on in-coupling and guiding properties of optical fibers, with the current version requiring only few hundred micrometers.
Miroshnychenko, Yevhen +3 more
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Characterization of Laser Beam Shaping Optics Based on Their Ablation Geometry of Thin Films
Micromachines, 2014 Thin film ablation with pulsed nanosecond lasers can benefit from the use of beam shaping optics to transform the Gaussian beam profile with a circular footprint into a Top-Hat beam profile with a rectangular footprint.
Stefan Rung +2 more
doaj +1 more source
Spatially Structured Optical Pump for Laser Generation Tuning
Nanomaterials, 2023 The goal and essential parameter of laser light conversion is achieving emitted radiation of higher brightness. For many applications, the laser beam must have the highest available beam quality and highest achievable power.
Gabrielius Kontenis +3 more
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Study the distribution of photovoltaic power and cross section in laser spot light [PDF]
مجلة التربية والعلم, 2007 This article presents the use of image processing technique to study the effect of injection current on the optical power distribution and laser spot cross-section (profile) of semiconductor laser type (AlGaInP).
Ragheed Ibraheem
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Physical Review Special Topics. Accelerators and Beams, 2015 Propagation of a Gaussian x-ray laser beam has been analyzed in collisionless thermal quantum plasma with considering a ramped density profile. In this density profile due to the increase in the plasma density, an earlier and stronger self-focusing ...
S. Zare +4 more
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Enhanced Photoacoustic Beam Profiling of Pulsed Lasers
International Journal of Thermophysics, 2013 An improved version of a photoacoustic beam profiler of pulsed lasers is presented. The new model resorts to high-bandwidth condenser microphones to register higher-order, excited acoustic modes, thus enabling more accurate profiling. In addition, Xe was used as a buffer gas since its high atomic weight further reduces the eigenfrequencies. Furthermore,
González, Martín Germán +4 more
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Shaping Beam Profiles Using Plastic Optical Fiber Tapers with Application to Ice Sensors
Sensors, 2020 Using either bulk or fiber optics the profile of laser beams can be altered from Gaussian to top-hat or hollow beams allowing enhanced performance in applications like laser cooling, optical trapping, and fiber sensing.
Kostas Amoiropoulos +3 more
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Journal of Advanced Joining ProcessesThe present paper investigates the application of laser beam shaping and laser beam oscillations (wobbling) for laser processing of the crack-prone aluminum alloy 6013, used in automotive and aerospace applications.
Thomas Stoll +3 more
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Compact Beam Homogenizer Module with Laser-Fabricated Lens-Arrays
Applied Sciences, 2021 We report on manufacturing of a compact beam homogenizer module including two lens arrays and an aperture. Lens arrays are fabricated by an all laser-based technology employing a precise femtosecond pulsed laser ablation and a CO2 laser polishing step ...
Simon Schwarz +4 more
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Physical Review Special Topics. Accelerators and Beams, 2007 Accurate measurement of the beam phase space is essential for the next generation of electron accelerators. A scheme for beam optics optimization and beam matrix reconstruction algorithms for the diagnostics section of the beam delivery system of the ...
I. Agapov, G. A. Blair, M. Woodley
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