Results 61 to 70 of about 2,040,617 (301)
Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells
FEBS Open Bio, EarlyView.Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley +1 more source
Scalable Acoustical Frequency Tagging Coherent Beam Combining Based on Digital Signal Processing
IEEE Access, 2023 We present the module of booster amplifier for coherent beam combining Master Oscillator Power Amplifier (MOPA) system to operate with a text narrow-linewidth seed laser. The goal was to achieve a highly modular system, manifested in the ease of changing
Pawel R. Kaczmarek +2 more
doaj +1 more source
Spectral beam combining of high power fiber lasers
, 2022 S.794-795We review the technique of spectral beam combining and discuss detailed limitations in the laser systems used for combination of multiple cw and pulsed fiber amplifiers to kW average power and mJ's of pulse ...
Schreiber, T. +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Coherent beam combining with micro-lens arrays
, 2020 A novel concept for coherent beam combining is presented based on a simple setup with microlens arrays. These standard components are used in a proof-of-principle experiment for both coherent beam splitting and combination of 5 x 5 beams.
Aleksander Budnicki (9757301) +7 more
core +1 more source
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Multi-plane light conversion coherent beam combining
High Power Laser Science and EngineeringMulti-plane light conversion (MPLC) is a versatile technique that enables arbitrary manipulation of optical fields, and is numerically investigated as a novel avenue for coherent beam combining (CBC) applications.
Hongbing Zhou +11 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil +2 more
wiley +1 more source
Quasi-All-Fiber High-Efficiency Divided Chirp-Pulse Amplification System Based on Active Controlling
IEEE Photonics Journal, 2016 We present a new high-efficiency divided chirp-pulse amplification (DCPA) system based on an actively controlled quasi-all-fiber structure. As a proof-of-principle experiment, a two-channel amplification system composed of single-mode ytterbium-doped ...
J. Yu +9 more
doaj +1 more source
Photonics, 2020 Coherent beam combining can be used to scale optical power and enable mechanism-free beam steering using an optical phased array. Coherently combining multiple free-running lasers in a leader-follower laser configuration is challenging due to the need to
Lyle E. Roberts +3 more
doaj +1 more source