Results 111 to 120 of about 11,983 (293)
Coherent beam combining with multilevel optical phase-locked loops [PDF]
, 2007 Coherent beam combining (CBC) technology holds the promise of enabling laser systems with very high power and near-ideal beam quality. We propose and demonstrate a novel servo system composed of multilevel optical phase lock loops.
Kewitsch, Anthony +6 more
core
, 2012 Maximization of a projected laser beam’s power density at a remotely located extended object (speckle target) can be achieved by using an adaptive optics (AO) technique based on sensing and optimization of the target-return speckle field’s statistical ...
Weyrauch, Thomas +4 more
core +1 more source
High-Power Laser Coherent Beam Combination Through Self-Imaging in Plasma Waveguides
Applied SciencesA novel approach for laser coherent beam combination (CBC) utilizing the self-imaging effect in plasma waveguides is presented in this study, which enables the transmission of ultrashort laser pulses at intensities above the bulk damage threshold of ...
Yixuan Huang +6 more
doaj +1 more source
Directional Flow of Confined Polaritons in CrSBr
Advanced Materials, EarlyView.CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak +10 more
wiley +1 more source
Advanced Materials, EarlyView.Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine +5 more
wiley +1 more source
Laser-induced coherent spin change due to spin-orbit coupling
npj SpintronicsDirect light-spin interactions, induced by spin-orbit coupling (SOC), enable ultrafast spin manipulation through coherent spin excitation, which is universal in magnetic materials due to the ubiquity of SOC.
In Cheol Yu +9 more
doaj +1 more source
High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks
Advanced Materials, EarlyView.A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza +11 more
wiley +1 more source
Coherent Beam Combining of 1 um DFB Laser Based on Adaptive Optics Control
, 2021 A 1-µm DFB laser monolithically integrated with 1×2 MMI and SOAs has been demonstrated with a stable lasing wavelength. Coherent beam combining using adaptive control of the outputs is demonstrated, showing good agreement with ...
Dong, Lizhi +10 more
core
Advanced Materials, EarlyView.ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee +6 more
wiley +1 more source
Journal of Manufacturing and Materials ProcessingLasers with average powers of several kilowatts have become an important tool for industrial applications. Temporal and spatial beam shaping was demonstrated to improve existing and enable novel applications.
Rudolf Weber +7 more
doaj +1 more source