Results 131 to 140 of about 108,805 (248)

2D cognitive optical data processing with phase change materials

We demonstrate high-density, multi-level crystallization of a Ge2Sb2Te5 thin film using tightly focused femtosecond laser pulses. The optical reflectivity in each distinct phase states level is characterized for applications in ultra-fast cognitive ...
Rogers, E.T.F., Wang, Q., Roy, Tapashree, Craig, C., MacDonald, K.F., Maddock, Jonathan, Hewak, D.W., Zheludev, N.I.   +7 more
core   +1 more source

Black Hole Quencher‐Enhanced Plasmonic Photothermal Conversion

Advanced Science, EarlyView.
Researchers have developed a universal method to boost plasmonic photothermal conversion by attaching black hole quencher (BHQ) molecules to matched metal nanostructures. This hybrid approach increases efficiency by roughly threefold, reaching up to 69.1% in the near‐infrared‐II window.
Ruiyuan Zhang, Xinru Chen, Lin Shen, Jin Li   +3 more
wiley   +1 more source

Femtosecond infrared multiphoton dissociation Workshop report

, 1994
This report contains the extended abstracts of the invited lectures presented at the workshop on 'Femtosecond Infrared Multiphoton Dissociation', held at the Max-Planck-Institut fuer Quantenoptik, July 5-7, 1993.
Max-Planck-Institut fuer Quantenoptik (MPQ), Garching (Germany)
core  

Engineering Synergistic Intra‐/Intermolecular Conformational Locking via Side‐Chain Branching: A β‐Sheet‐Inspired Strategy for Planar NIR‐II Phototheranostic Aggregates

Advanced Science, EarlyView.
A bio‐inspired side‐chain branching strategy is developed to orchestrate a dual noncovalent conformational locking (NoCL) network, enabling the construction of perfectly planar NIR‐II phototheranostic aggregates. Such structural precision maximizes light‐harvesting efficiency and optimizes exciton dynamics, ensuring synchronized enhancements in NIR‐II ...
Cheng Lu, Qian Jia, Bo Wu, Chao Li, Ryan T. K. Kwok, Tie‐Gen Chen, Jianwei Sun, Zheng Zhao, Teng‐Teng Chen, Zhongliang Wang, Jacky W. Y. Lam, Ben Zhong Tang   +11 more
wiley   +1 more source

Outcomes study between femtosecond laser-assisted cataract surgery and conventional phacoemulsification surgery using an active fluidics system

Clinical Ophthalmology, 2017
Wilson Takashi Hida,1–4 Patrick Frenzel Tzelikis,1–3 César Vilar,1,2 Mario Augusto Pereira Dias Chaves,1,2,5 Antônio Francisco Pimenta Motta,1–3 Pedro Carlos Carricondo,1–3 Bruna Vieira Ventura,1,2,4,6 Renato Ambrosio
Hida WT, Tzelikis PF, Vilar C, Chaves MAPD, Motta AFP, Carricondo PC, Ventura BV, Ambrosio R JR, Nosé W, Alves MR   +9 more
doaj  

Covalently Integrated Selenoviologen–N‐Heterocyclic Carbene–Pt Nanoparticles for Visible‐Light‐Driven Hydrogen Evolution

Advanced Science, EarlyView.
A covalently integrated single‐component photocatalyst is constructed by anchoring selenoviologen to platinum nanoparticles via robust N‐heterocyclic carbene ligands. The resulting Pt─C covalent bonds function dually as protective structural scaffolds and direct channels for ultrafast intramolecular electron transfer This precise interfacial ...
Wenxi He, Guoping Li, Chenjing Liu, Yu Liu, Yawen Li, Wenxin Wei, Hairui Lei, Ni Yan, Gang He   +8 more
wiley   +1 more source

Universal synthesis of high-entropy alloy nanostructures with femtosecond lasers. [PDF]

Sci Adv
Su Z, Jiang L, Dai Y, Yuan S, Zhang X, Gai H, Wang X, Zhou J, Zhang X.   +8 more
europepmc   +1 more source

Green and Scalable Synthesis of Efficient and Stable CsPbBr3 Perovskite Quantum Dots Enables Low‐Threshold Amplified Spontaneous Emission

Advanced Science, EarlyView.
Green and scalable synthesis of CsPbBr3 perovskite quantum dots using bio‐sourced lecithin and hexane enables single‐batch production over 10 grams. Suppressed Auger recombination and electron‐phonon coupling yields 95% PLQY, enhanced stability, and low ASE thresholds of 230.4 (ns) and 50.1 (fs) µJ cm−2 in neat films. ABSTRACT Halide perovskite quantum
Yongfeng Liu, Mengting Zhang, Qingyu Xie, Kehao Hu, Bowen Zhang, Zhe Zhang, Jie Yang, Zhiping Hu, Juan Du, Jia Wang, Min Zhou   +10 more
wiley   +1 more source

400 nm femtosecond laser irradiation eradicates mature MRSA biofilms and inhibits their formation via quorum sensing dysregulation. [PDF]

Sci Rep
Ahmed E, El-Gendy AO, Hamblin MR, Mohamed T.   +3 more
europepmc   +1 more source

Terahertz‐Nanoscale Visualization of the Microscopic Spin‐Charge Architecture of Colossal Magnetoresistive Switching

Advanced Science, EarlyView.
This study employs cryogenic magneto‐terahertz nanoscopy to reveal the real‐space electrodynamics of the colossal magnetoresistance transition. By capturing the terahertz electrodynamic evolution of field‐driven spin switching, the work unveils the dissipative dynamics of emergent metallic states, providing a high‐frequency view of coupled spin‐charge ...
Samuel Haeuser, Randall K. Chan, Richard H. J. Kim, Joong‐Mok Park, Martin Mootz, Thomas Koschny, Jigang Wang   +6 more
wiley   +1 more source