Results 51 to 60 of about 239,845 (311)
High Power Laser Science and EngineeringSuppressing mode degradation is the key issue for high-power laser delivery; however, diagnosing mode degradation in its entirety, ranging from the contents and origins to locations, has always been a major obstacle.
Xiao Chen +7 more
doaj +1 more source
Beam quality factor of aberrated Laguerre-Gaussian optical beams
Optics Express, 2023 The influence of aberrations on the beam quality factor of Laguerre-Gaussian beams is investigated. We derive analytical expressions for the beam quality factor due to astigmatism and spherical aberration. We show that the width of a Laguerre-Gaussian beam is a significant parameter that determines the aberration effects on the beam quality factor. For
Chemist M. Mabena +4 more
openaire +2 more sources
FEBS Letters, EarlyView.Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source
Flexible assembly module for beam-shaping product families based on support structures
, 2022 Paper 97270WDepending on the application, high-power diode lasers (HPDL) have individual requirements on their beam-shaping as well as their mechanical fixation.
Brecher, Christian +7 more
core +1 more source
Calibration of ionization chamber in megavoltage x-ray field of medical linear accelerator [PDF]
Nuclear Technology and Radiation ProtectionIonization chambers were calibrated regarding absorbed dose to water in MeV X-ray fields of a medical linear accelerator, with nominal maximum energies of 6 MeV and 15 MeV.
Pham Hong-Lam +13 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 +3 more
wiley +1 more source
, 2022 Paper 61011BDiode laser systems have been established for material processing and pumping solid state lasers in the recent years, due to flexibility, efficiency and lifetime. In the meantime, diode laser bars with an output power of more than 120 W and a
Boucke, K., Roehner, M., Poprawe, R.
core +1 more source
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Astigmatism-controlled beam shaping for high-quality fibre Bragg grating inscription using femtosecond laser [PDF]
We present an astigmatism-controlled beam-shaping technique for femtosecond laser inscription of FBGs, optimizing beam profiles using a cylindrical lens to mitigate focal distortion and enhance grating quality.
Zhou, Kaiming +4 more
core +1 more source