Results 181 to 190 of about 4,851,484 (353)

AN ELECTRON MICROSCOPE STUDY OF VITALLY STAINED SINGLE CELLS IRRADIATED WITH A RUBY LASER MICROBEAM [PDF]

, 1966
Rainer Storb, Robert L. Amy, Richard K. Wertz, B Fauconnier, M Bessis   +4 more
openalex   +1 more source

Development of Ternary Magnesium Alloys for Laser Powder Bed Fusion: Optimizing Oxide Layer Thickness

Advanced Engineering Materials, EarlyView.
Additive manufacturing of magnesium alloys by laser is difficult because the melting point of the oxide layer is much higher than the evaporation temperature of the metal underneath. Making the oxide layer thinner can solve this problem. Alloying magnesium with strontium makes the oxide layer thinner, especially at 0.5 wt%.
Elmar Jonas Breitbach, Stefan Julmi, Sabine Behrens, Tatiana Blank, Arvid Abel, Nicole Emminghaus, Ludger Overmeyer, Christian Klose, Hans Jürgen Maier   +8 more
wiley   +1 more source

Dynamics of Laser-Induced Breakdown in Gases

, 1967
M. R. Young, Michael Hercher
openalex   +2 more sources

Interferometry and Laser Control with Solid Fabry–Perot Etalons [PDF]

, 1966
D. G. Peterson, Amnon Yariv
openalex   +1 more source

Mechanisms of Increasing Weld Depth during Temporal Power Modulation in High‐Power Laser Beam Welding

Advanced Engineering Materials, EarlyView.
Temporal power modulation increases weld depth in high‐power laser beam welding of dissimilar round bars by nearly 20% compared to same average continuously welded welding power. The mechanism of action also applies to sheet welding and depends on the inertia of keyhole depth for the modulated laser beam power.
Jan Grajczak, David Reynders, Christian Nowroth, Jens Twiefel, Jörg Wallaschek, Sarah Nothdurft, Jörg Hermsdorf, Stefan Kaierle   +7 more
wiley   +1 more source

Electrically pumped topological laser with valley edge modes

Nature, 2020
Yongquan Zeng, Udvas Chattopadhyay, B. Zhu, Bo Qiang, Jinghao Li, Yuhao Jin, Lianhe H. Li, A. Davies, E. Linfield, Baile Zhang, Y. Chong, Qi Jie Wang   +11 more
semanticscholar   +1 more source

Wavelength-selective, sequential Q-switching laser cavity [PDF]

, 1974
Single-frequency continuous output of laser is converted into series of high-power laser pulses at high repetition rates. Applications include pollutant detection by absorption, laser gain measurements at discrete wavelengths, laser propagation ...
Allario, F., Lucht, R. A.
core   +1 more source

From Damage to Functionality: Remanufacturing of Thrust Roller Bearings by Tailored Forming

Advanced Engineering Materials, EarlyView.
Herein, the wear and fatigue behavior of repaired bearing raceways with a new powder alloy is investigated using a FE8 test‐rig and an oscillating tribometer. The tests are compared with industrial manufactured bearings to evaluate the repair quality. The repair can extend the service life of the repaired bearing to that of a new bearing and improves ...
Felix Saure, Florian Pape, Gerhard Poll, Max Marian   +3 more
wiley   +1 more source

S2-Method-Based Monitoring of Modal Composition in Optical Fibers during Fiber Component Manufacturing [PDF]

EPJ Web of Conferences, 2022
Haverland N., Wellmann F., Neumann J., Kracht D.   +3 more
doaj   +1 more source

Reciprocity in laser ultrasound revisited: Is wavefield characterisation by scanning laser excitation strictly reciprocal to that by scanning laser detection? [PDF]

arXiv
The common believe about strict measurement reciprocity between scanning laser detection and scanning laser excitation is disproved by a simple experiment. Nevertheless, a deeper study based on the reciprocity relation reveals correct reciprocal measurement set-ups for both the probe-excitation / laser-detection and the laser-excitation / probe ...
arxiv