Results 31 to 40 of about 3,061,892 (250)

Efficient power scaling of laser radiation by spectral beam combining

, 2008
The possibility of achieving multikilowatt laser radiation by spectrally combining beams using volume Bragg gratings (VBGs) is shown. The VBGs recorded in a photothermorefractive glass exhibit long-term stability of all its parameters in high-power laser
Venus, George, Smirnov, Vadim, Andrusyak, Oleksiy, Ciapurin, Igor, Sevian, Armen   +4 more
core   +2 more sources

Research on mid-infrared quantum cascade lasers spectral beam combining

Frontiers in Physics
Quantum cascade lasers (QCLs) in the mid-infrared (MIR) hold significant potential for widespread applications in both military and civilian contexts.
Xinmin Fan, Xinmin Fan, Jianxin Zhang, Jianxin Zhang, Yan Wang, Yan Wang, Sensen Li, Chunyan Wang, Chunyan Wang, Yuantai Wu, Yuantai Wu, Lujun Zhang, Lujun Zhang, Xiaodong Huang, Xiaodong Huang, Shun Li, Shun Li, Yu Zhang   +17 more
doaj   +1 more source

Modeling and Analysis of the Influence of an Edge Filter on the Combining Efficiency and Beam Quality of a 10-kW-Class Spectral Beam-Combining System

Applied Sciences, 2019
Filter-based spectral beam combining (FSBC) is a promising power-scaling concept for high-power, broad-linewidth fiber lasers, as it relaxes the requirements for linewidth control and also the sizes of the individual beams.
Jun Ma, Fan Chen, Cong Wei, Rihong Zhu
doaj   +1 more source

Ray mapping approach in double freeform surface design for collimated beam shaping

, 2022
Paper 995004, 8 S.Laser beam shaping enables the simultaneous redistribution of the irradiance and phase of a laser beam. The desired shape of the laser beam is thereby determined by the respective application.
Gross, H., Bösel, C.
core   +1 more source

Development of an adaptive laser beam shaper

, 2022
Paper 1051819, 7 S.The intensity distribution of a laser beam has a high impact on laser processing applications. In many applications, the emitted light of a laser beam source is transformed from a Gaussian intensity distribution into other intensity ...
Pütsch, O., Lange, F., Stollenwerk, J., Loosen, P., König, H.-G.   +4 more
core   +1 more source

Experimental Demonstration of Coherent Combining With Tip/Tilt Control Based on Adaptive Space-to-Fiber Laser Beam Coupling

IEEE Photonics Journal, 2017
A novel approach of tip/tilt control through optimizing laser beam coupling efficiencies from space to polarization-maintaining-fibers with stochastic parallel gradient descent (SPGD) algorithm for coherent beam combining (CBC) applications is ...
Feng Li, Chao Geng, Guan Huang, Yan Yang, Xinyang Li, Qi Qiu   +5 more
doaj   +1 more source

Effects of Top-hat Laser Beam Processing and Scanning Strategies in Laser Micro-Structuring

Micromachines, 2020
The uniform energy distribution of top-hat laser beams is a very attractive property that can offer some advantages compared to Gaussian beams. Especially, the desired intensity distribution can be achieved at the laser spot through energy redistribution
Hoang Le, Pavel Penchev, Anne Henrottin, David Bruneel, Vahid Nasrollahi, Jose A. Ramos-de-Campos, Stefan Dimov   +6 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

2D longitudinal modeling of heat transfer and fluid flow during multilayered [PDF]

, 2012
version post-print de l'article : JLA Vol : 24 Iss:3. 2D longitudinal modeling of heat transfer and fluid flow during multilayered direct laser metal deposition processDerived from laser cladding, the Direct Laser Metal Deposition (DLMD) process is ...
CARRON, Denis, LE MASSON, Philippe, GHARBI, Myriam, PEYRE, Patrice, FABBRO, Rémy, CARIN, Muriel, MORVILLE, Simon   +6 more
core