Results 161 to 170 of about 722,401 (201)
Thermally Activated Delayed Fluorescence and Beyond. Photophysics and Material Design Strategies.
Photophysical properties of TADF molecules are determined by characteristic parameters that are discussed in detail(. Moreover, using femtosecond time‐resolved spectroscopy, quantum mechanical considerations, and state‐of‐art calculations, deeper understanding allows us to design breakthrough Cu(I) and organic TADF‐ OLED materials. For the latter ones,
Hartmut Yersin, Uwe Monkowius
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Polarization Management on Anisotropic Thin‐Film Lithium Niobate Platform
This review focuses on x‐cut thin‐film lithium niobate (TFLN), exploring strategies to mitigate anisotropy and mode hybridization. It covers polarization beam splitters, rotators, splitter‐rotators, polarizers, and polarization‐insensitive components. Key applications include polarization‐division multiplexing, polarization‐insensitive modulation, and ...
Kaixuan Chen+9 more
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A Trade‐Off between Pulse Energy and Stability in Seeded Free‐Electron Lasers
Seeded free‐electron lasers (FELs) require balancing competing factors for optimal performance. This work analyzes how dispersion strength influences output in high‐gain harmonic generation. Results reveal a trade‐off: maximizing pulse energy often comes at the cost of reduced stability and vice versa.
Li Zeng+4 more
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Optimizing Single‐Cell Measurement Using Dynamic Atomic Force Microscopy
This study optimizes optical detection sensitivity in atomic force microscopy for high‐frequency single‐cell imaging in liquid environments. By analyzing laser positioning on microcantilevers, it enhances measurement accuracy and image resolution. Advanced image analysis techniques assess quality, offering guidelines for high‐resolution imaging of ...
Indrianita Lionadi+4 more
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A nematic liquid crystal elastomer (LCE) exhibiting dynamic laser oscillation behavior modulated by mechanical stretching and contraction is synthesized. This study investigates the influence of liquid crystal elastomer deformation characteristics on multidimensional complex microcavity laser systems.
Hongyang Zhu+4 more
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Frequency‐Dependent Demethylation of Cancer DNAs by High‐Power Terahertz Radiation
Effective demethylation of cancer DNA is successfully demonstrated by resonant irradiation with high‐power terahertz (THz) waves at the 10 mW level, combined with metamaterial‐based THz filters. The dependence of spectral filtering on demethylation indicates that the resonant frequency of 1.6 THz of cancer DNAs plays a crucial role in reducing the ...
Chaeyoon Kim+8 more
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Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna+4 more
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This work combines molecular dynamics and finite‐difference time‐domain computational approaches to study the photothermal properties of melanin nanoparticle–based supra‐assemblies. Based on the results of this study, the binary mixtures of melanin and silica with higher concentrations of melanin and with more segregated levels of mixing are able to ...
Hanieh Mohsenzadeh Hedeshi+6 more
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A compact self‐detecting dual‐comb spectroscopy (DCS) system based on dispersion‐engineered, high‐speed packaged quantum cascade lasers (QCLs) at λ≈4.6 μm under coherent injection locking is demonstrated. Broad multiheterodyne comb signal with reduced tooth linewidths by orders of magnitude is recorded.
Yu Ma+14 more
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Enhanced Two‐Photon Excited Emission of Quantum Emitters by Colloidal Plasmonic Metasurfaces
Colloidal plasmonic metasurfaces presenting a completely exposed optical cavity are fabricated via templated self‐assembling silver nanoparticles into squared arrays on top of a thin film of CdSe/ZnS quantum dots. The resulting structure promotes the enhancement of the two‐photon absorption and emission processes of the quantum emitter by exploiting ...
Ylli Conti+4 more
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