Results 61 to 70 of about 8,954 (203)

Recent Advances in Applications of Ultrafast Lasers

Photonics
Ultrafast lasers, characterized by femtosecond and picosecond pulse durations, have revolutionized material processing due to their high energy density and minimal thermal diffusion, and have played a transformative role in precision manufacturing.
Sibo Niu, Wenwen Wang, Pan Liu, Yiheng Zhang, Xiaoming Zhao, Jibo Li, Maosen Xiao, Yuzhi Wang, Jing Li, Xiaopeng Shao   +9 more
doaj   +1 more source

Spectrally Programmable Spin‐Polarized Photocurrents in WSe2–NiPS3 Magnetic van der Waals Heterostructures

Advanced Materials, EarlyView.
Heterostructure photodiode devices of p‐type WSe2 with n‐type NiPS3 constructs spectrally protected spin‐polarized photocurrents. The energy of the excitation photon serves as an independent control parameter for spin‐selective photocurrent generation. ABSTRACT Efficient generation and control of spin‐polarized currents in semiconductors remain central
Rajesh Kumar Yadav, Michal Poplinger, Adi Levi, Adi Harchol, Nirman Chakraborty, Thomas Brumme, Thomas Heine, Efrat Lifshitz, Doron Naveh   +8 more
wiley   +1 more source

Spin Transport Across Interfaces With the Non‐Collinear Antiferromagnet Mn3Sn

Advanced Materials, EarlyView.
We study spin transport with Mn3Sn|Metal${\rm Mn}_3{\rm Sn}\vert{\rm Metal}$ heterostructures. For Mn3Sn|Pt${\rm Mn}_3{\rm Sn}\vert{\rm Pt}$ heterostructures, ultrafast spin current generation by optical pumping of Mn3Sn${\rm Mn}_3{\rm Sn}$ is explored, while for Mn3Sn|NiFe${\rm Mn}_3{\rm Sn}\vert{\rm NiFe}$ heterostructures, we probe the spin–charge ...
Paul A. Marschall, Wolfgang Hoppe, Prajwal Rigvedi, Börge Göbel, Franziska Ziolkowski, Samir Lounis, Banabir Pal, Stuart S. P. Parkin, Georg Woltersdorf   +8 more
wiley   +1 more source

The role of turbulence in bottom-up nanoparticle synthesis using ultrafast laser filamentation in ethanol

Journal of the Mechanical Behavior of Materials
Ultrafast laser filamentation in liquids based on nonlinear optical phenomenon is a new method for bottom-up nanoparticle synthesis. The process is able to synthesize nanomaterials such as nanodiamonds from the liquid precursor.
Tan Han Yi, Ong Guang Liang, Nee Chen Hon, Tou Teck Yong, Yap Seong Ling, Sanz-Navarro Carlos Federico, Lee Siaw Foon, Yap Seong Shan   +7 more
doaj   +1 more source

High Speed Pump-Probe Apparatus for Observation of Transitional Effects in Ultrafast Laser Micromachining Processes

Micromachines, 2015
A pump-probe experimental approach has been shown to be a very efficient tool for the observation and analysis of various laser matter interaction effects.
Ilya Alexeev, Johannes Heberle, Kristian Cvecek, Konstantin Yu. Nagulin, Michael Schmidt   +4 more
doaj   +1 more source

Strong Coupling in Bulk Nanoplasmonic Nanoplatelet Perovskite Scintillators

Advanced Materials, EarlyView.
A bulk scintillating nanocomposite is engineered from CsPbBr3 nanoplatelets and Ag nanocubes to support exciton–plasmon strong coupling under X‐ray excitation. The resulting hybrid polaritonic states appear directly in radioluminescence, opening a route toward polariton‐enabled scintillator design beyond conventional Purcell enhancement.
Michal Makowski, Dominik Kowal, Anna Pniakowska, Kamil Misztal, Mohanad Saadeldin Eid, Joanna Cybinska, Winicjusz Drozdowski, Benoit Mahler, Christophe Dujardin, Detlef Hommel, Liang Jie Wong, Dennis Schaart, Sergio Brovelli, Muhammad Danang Birowosuto   +13 more
wiley   +1 more source

Femtosecond Laser Engineering of Oxide-Based Functional Systems: Toward 4D Manufacturing

Machines
Femtosecond laser processing enables spatially controlled modification of the structure, composition, and functionality of advanced materials through highly localized energy deposition and laser–matter interaction mechanisms.
Serguei P. Murzin
doaj   +1 more source

Single‐Particle FRET Probes Heterogeneity in the Ligand Shell of Colloidal Perovskite Quantum Dots

Advanced Materials, EarlyView.
Single‐particle, single‐molecule Förster resonance energy transfer turns dye‐tagged ligands into nanorulers for the otherwise elusive organic shell of CsPbBr3 quantum dots. Distance variations within individual particles reveal pronounced local heterogeneity, while changes in the surrounding ligand chemistry shift the average dye–surface separation ...
Leon G. Feld, Oleksandr Kolomiiets, Noah A. Shahin, Sebastian Sabisch, Amrutha Rajan, Gabriele Rainò, Maksym V. Kovalenko   +6 more
wiley   +1 more source

Efficient Sunlight Degradation of Wide‐Spectrum Antibiotics Through Enhanced Charge Separation in SnTCPP NPs‐Nb2C Schottky Heterojunction: Ultrafast Carrier Dynamic Study

Advanced Materials Interfaces, EarlyView.
Due to enhanced charge transfer and carrier mobility on the surface, the SnTCPP NPs‐Nb2C Schottky heterojunctions demonstrate exceptional sunlight‐driven catalytic activity toward tetracycline antibiotics and ofloxacin degradation, achieving a removal efficiency of up to 99.9% within 60 min of irradiation, both in model wastewater and natural water ...
Juanxuan Guo, Sheng Liao, Ranye Liao, Xinyan Ke, Ming‐De Li, Li Dang   +5 more
wiley   +1 more source

Ultrafast Laser Processing of Optical Fibers for Sensing Applications. [PDF]

Sensors (Basel), 2021
Mihailov SJ, Hnatovsky C, Abdukerim N, Walker RB, Lu P, Xu Y, Bao X, Ding H, De Silva M, Coulas D, Grobnic D.   +10 more
europepmc   +1 more source