Results 211 to 220 of about 99,732 (295)

Ultrafast Control of Coherent Acoustic Lattice Dynamics in the Transition Metal Dichalcogenide Alloy WSSe

Advanced Physics Research, EarlyView.
Coherent acoustic phonons are generated and optically controlled in bulk WSSe alloy samples using ultrafast spectroscopy. The alloy exhibits a strong coherent acoustic response, which is not an intermediate state between WS? and WSe?. Instead, a much more complex mechanism is proposed.
Sergio I. Rey, Martin J. Cross, Malte L. Welsch, Frederik Schröder, William V. Carstensen, Oleg Semyonov, Daphne M. Dekker, Nikolai Orlov, Binbin Zhou, Nicolas Stenger, Peter U. Jepsen, Edmund J. R. Kelleher   +11 more
wiley   +1 more source

Continuously adjustable hollow beam for ultrafast laser fabrication of size-controllable nanoparticles. [PDF]

Nanophotonics
Wang Z, Yi P, Wang A, Li T, Chen W, Qi X, Li X.   +6 more
europepmc   +1 more source

Rational Design of Donor‐Acceptor Oligomers for Enhanced Charge Separation

Advanced Physics Research, EarlyView.
How can molecular symmetry be broken to maximize photoinduced charge separation? Through first‐principles analysis of 22 DTP‐based donor‐acceptor ternary oligomers, this work establishes that combining architectural asymmetry with site‐selective acceptor fluorination creates an ideal electrostatic landscape for frontier orbital segregation.
Jannik Theile, Michele Guerrini, Surender Kumar, Caterina Cocchi   +3 more
wiley   +1 more source

Intensity Modulation Effects on Ultrafast Laser Ablation Efficiency and Defect Formation in Fused Silica. [PDF]

Nanomaterials (Basel)
Yoshitomi D, Takada H, Kinugasa S, Ogawa H, Kobayashi Y, Narazaki A.   +5 more
europepmc   +1 more source

Metasurfaces and Metadevices for Topological Electromagnetic Waves

Advanced Physics Research, EarlyView.
Optical topologies refer to diverse topological localized structures made by diverse parameters of light fields, such as vortices, skyrmions, and hopfions. This article navigates a direction of metasurface‐based integrated devices for generation, manipulation and detection of novel topologies of light, which would be a rapidly growing interdisciplinary
Rensheng Xie, Nilo Mata‐Cervera, Xi Xie, Yijie Shen   +3 more
wiley   +1 more source

Photonic Chip Based on Ultrafast Laser-Induced Reversible Phase Change for Convolutional Neural Network. [PDF]

Nanomicro Lett
Xie J, Yan J, Han H, Zhao Y, Luo M, Li J, Guo H, Qiao M.   +7 more
europepmc   +1 more source

The Progress of Orbitronics: The Enhancement of Orbital Torque Efficiency

Advanced Physics Research, EarlyView.
Orbit‐torque (OT) devices attract significant attention for their low‐power consumption and high stability in applications. This review systematically outlines strategies for enhancing OT efficiency. We categorize approaches into boosting orbital currents/torques and improving the orbital‐to‐spin conversion coefficient.
Pengfei Liu, Tianci Tong, Delin Zhang, Tian Wang, Xinze Li, Ping Wang, Yong Jiang   +6 more
wiley   +1 more source

Ultrafast Laser Processing for High-Aspect-Ratio Structures. [PDF]

Nanomaterials (Basel)
Qin M, Zhao X, Fan H, Leng R, Yu Y, Li A, Gao B.   +6 more
europepmc   +1 more source

Manipulating Ferroelectricity Without Electrical Bias: A Perspective

Advanced Physics Research, EarlyView.
Alternatives to electrical bias to control ferroelectric polarization are highly desired for the development of ferroelectric‐based applications. The polarizing role of chemically engineered surfaces, the impact of chemical substitution and mechanical pressure, and light‐induced effects on the final polarization state are highlighted in this short ...
Bixin Yan, Valentine Gillioz, Ipek Efe, Morgan Trassin   +3 more
wiley   +1 more source

Interconversion of Optical to Terahertz Pulses in Nonlinear Beta Barium Borate Crystal

Advanced Physics Research, EarlyView.
ABSTRACT Low‐temperature β‐phase barium borate (β‐BBO) is an important nonlinear crystal, widely utilized for optical second‐harmonic (SH) generation. Recent re‐measurements of refractive indices in the terahertz (THz) range reveal that β‐BBO is a positive uniaxial crystal.
Yingyu Guo, Boyuan Chen, Zhangshun Li, Zhiqiang Lan, Huiping Zhang, Lin Xi, Zuanming Jin, Yan Peng, Yiming Zhu   +8 more
wiley   +1 more source