Results 91 to 100 of about 3,926,472 (378)
Buildup and Real-Time Control of Spatiotemporal Nonlinear Dynamics
Ultrafast ScienceUltrafast multimode fiber lasers enable the high-dimensional control of pulses, which can generate spatiotemporal mode-locking with high peak power and multimode Q-switching with large pulse energy.
Jingxuan Sun +5 more
doaj +1 more source
IEEE Photonics Journal, 2016 We report a low-cost arrayed waveguide grating (AWG) based mode-locked semiconductor laser designed for multichannel synchronous ultrashort pulse generation. Both the fabrication process and chip characterization results are discussed in detail.
Songtao Liu +7 more
doaj +1 more source
3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries
Advanced Functional Materials, EarlyView.Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling +7 more
wiley +1 more source
2.4 GHz CMOS Power Amplifier with Mode-Locking Structure to Enhance Gain
The Scientific World Journal, 2014 We propose a mode-locking method optimized for the cascode structure of an RF CMOS power amplifier. To maximize the advantage of the typical mode-locking method in the cascode structure, the input of the cross-coupled transistor is modified from that of ...
Changhyun Lee, Changkun Park
doaj +1 more source
High-efficiency phase-locking experiment of modular Ka-band coaxial magnetrons
AIP Advances, 2023 The first full demonstration of a high-efficiency phase-locking mechanism was accomplished in the millimeter-wave (mm wave) bands. Two modular Ka-band coaxial magnetrons were fabricated and phase-locked.
Minsheng Song +10 more
doaj +1 more source
Graphene Actively Mode‐Locked Lasers [PDF]
Advanced Functional Materials, 2018 AbstractActively mode‐locked lasers offer varying degrees of flexibility for a wider range of applications than their passively modulated counterparts, due to their capability for electrically controlled ultrahigh repetition rate operation. Graphene based electrooptic modulators with unique advantages of broad operation bandwidth and ultrafast speed ...
Wang, Yadong +12 more
openaire +3 more sources
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source
Unleashing the Power of Machine Learning in Nanomedicine Formulation Development
Advanced Functional Materials, EarlyView.A random forest machine learning model is able to make predictions on nanoparticle attributes of different nanomedicines (i.e. lipid nanoparticles, liposomes, or PLGA nanoparticles) based on microfluidic formulation parameters. Machine learning models are based on a database of nanoparticle formulations, and models are able to generate unique solutions
Thomas L. Moore +7 more
wiley +1 more source
Passive and hybrid mode locking in multi-section terahertz quantum cascade lasers
New Journal of Physics, 2018 It is believed that passive mode locking is virtually impossible in quantum cascade lasers (QCLs) because of too fast carrier relaxation time. Here, we revisit this possibility and theoretically show that stable mode locking and pulse durations in the ...
P Tzenov +6 more
doaj +1 more source
Antiresonant ring interferometer for laser cavity dumping, mode locking, and other applications [PDF]
, 1975 Applications in lasers for antiresonant ring interferometer include coupled laser cavities, variable laser-output coupling, intercavity harmonic-output coupling, mode locking, cavity dumping, and pulse code ...
Siegman, A. E.
core +1 more source