An electromagnetic indirect-driving scanning mirror for wide-field coaxial LiDAR applications. [PDF]
Sens Actuators A PhysLi S, Wang D, Song D, Zou J.
europepmc +1 more source
Characteristics Measurement and Jitter-Reduction of MEMS Scanning Mirror System
, 2007 微機電製品有著輕巧、微小、堅固與快速的切換時間(通常指共振頻率)，透過光學知識與微機電技術融合，一種新的領域微光機電系統因應而生。在眾多光學元件中，微機電掃瞄面鏡藉由隨時間變化的轉動角度，使得入射到微機電掃瞄面鏡上的光線，被反射到各種不同的角度上。由於微機電掃瞄面鏡可以忽視光波長的影響，而達到高解析度和大轉動角度的特點，使得它被廣泛應用在商品、科學與工業應用上。 本論文所使用的微機電掃描面鏡為設計來取代現有雷射印表機所使用的多面鏡。由於微機電掃描面鏡在掃描過程中，因輸入訊號、系統本身及製造過程因素 ...
許國基, HSU, KUO-CHI
core
Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures
Advanced Materials, EarlyView.Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah +10 more
wiley +1 more source
A water-immersible scanning mirror with hybrid polymer and elastomer hinges for high-speed and wide-field 3D ultrasound imaging. [PDF]
Sens Actuators A PhysLi S, Dong Z, Song P, Zou J.
europepmc +1 more source
Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors
Advanced Materials, EarlyView.Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang +12 more
wiley +1 more source
1T‐to‐2H Phase Evolution During Epitaxial Growth of Transition Metal Dichalcogenides
Advanced Materials, EarlyView.During MOCVD growth of MoS2 and WSe2, a transient metallic 1T phase emerges in early, edge‐rich, chalcogen‐deficient domains and declines as the films ultimately coalesce as 2H material. Together, experiments and ReaxFF simulations link domain size, edge stoichiometry, and vacancies to this evolution.
Andrew R. Graves +8 more
wiley +1 more source
Charge Storage and Dark Photocatalysis in Multivariate Ti‐Based Metal‐Organic Frameworks
Advanced Materials, EarlyView.The mixed‐linker series of the titanium‐based metal–organic framework COK‐47 enables systematic tuning of photoresponsiveness and (dark) photocatalytic activity, deepening our understanding of structure‐property‐function relationships. Tailored metal‐to‐ligand charge transfer between the secondary building units (metal‐oxo layers and organic linkers ...
Julia E. Knapp +11 more
wiley +1 more source
Robust Spin Splitting and Fermiology in the Layered Altermagnet CoNb4${\rm CoNb}_4$Se8${\rm Se}_8$
Advanced Materials, EarlyView.The emergence of an altermagnetic phase is demonstrated in the cobalt‐intercalated superconducting 2H‐NbSe2 polymorph. A combined theoretical and experimental approach directly probes the magnetism, the altermagnetic lifting of Kramers degeneracy, and the electronic phase space, establishing CoNb4Se8 as the first g‐wave altermagnetic layered material ...
Alessandro De Vita +47 more
wiley +1 more source
Chiral Phonon–Driven Ultrafast Spin Currents in a Non‐Magnetic Ferroelectric
Advanced Materials, EarlyView.Broadband terahertz emission spectroscopy shows signatures of ultrafast spin‐current generation in non‐magnetic ferroelectric β$\beta$’‐In2Se3${\rm In}_2{\rm Se}_3$. Reversal of the emitted field upon sample inversion and substitution of Pt with W indicates spin‐Hall‐mediated charge conversion, while polarization‐resolved measurements reveal ...
Thomas B. Gill +16 more
wiley +1 more source