Results 131 to 140 of about 3,969,324 (281)

Femtosecond laser post-processing of metal parts produced by laser additive manufacturing

, 2013
High-repetition rate femtosecond laser radiation was utilized to improve surface quality of metal parts manufactured by laser additive techniques. Different laser scanning approaches were utilized to increase the ablation efficiency and to improve the ...
Bonhoff, Tobias, Kelbassa, Ingomar, Mingareev, Ilya, Richardson, Martin, Biermann, Tim, Meiners, Wilhelm, El-Sherif, Ashraf   +6 more
core   +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

Evanescent Field Controllable MZ Sensor via Femtosecond Laser Processing and Mechanic Polishing. [PDF]

Micromachines (Basel), 2021
Zhang ZD, Duan YZ, Guo Q, Gao S, Gao BR.
europepmc   +1 more source

Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies

Advanced Science, EarlyView.
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Jie Yang, Pengyi Feng, Fei Han, Weijin Chen, Zhongwei Jin, Jincheng Ni, Yuanjie Yang, Anxue Zhang, Guy A. E. Vandenbosch, Niels Verellen, Ewald Janssens, Jiafu Wang, Benfeng Bai, Cheng‐Wei Qiu, Xuezhi Zheng   +14 more
wiley   +1 more source

Femtosecond Laser-Processing of Pre-Anodized Ti-Based Bone Implants for Cell-Repellent Functionalization. [PDF]

Nanomaterials (Basel), 2021
Muck M, Wolfsjäger B, Seibert K, Maier C, Lone SA, Hassel AW, Baumgartner W, Heitz J.   +7 more
europepmc   +1 more source

Nanoscale Confinement Enhances Ultrafast Demagnetization

Advanced Science, EarlyView.
Next generation spintronics may depend on successfully combining femtosecond spin dynamics with nanoscale device miniaturization. We address this by systematically studying the effect of nanoscale confinement on the femtosecond demagnetization of Iron. By combining ultrafast experiments sensitive to spins, charge carriers, and phonons, we uncover a nm ...
Yoav William Windsor, Tobias Lojewski, Moumita Kundu, Klaus Sokolowski‐Tinten, Nico Rothenbach, Andrea Eschenlohr, Markus Ernst Gruner, Katharina Ollefs, Carolin Schmitz‐Antoniak, Soma Salamon, Daniela Zahn, Laurenz Rettig, Christian Schüßler‐Langeheine, Niko Pontius, Renkai Li, Mianzhen Mo, Suji Park, Xiaoshe Shen, Stephen Weathersby, Xijie Wang, Rossitza Pentcheva, Heiko Wende, Ulrich Nowak, Uwe Bovensiepen   +23 more
wiley   +1 more source

Fabrication of photonic devices in heavy metal oxide glass by femtosecond laser direct writing

Femtosecond laser can induce a permanent refractive index change inside various transparent materials via multiphoton absorption. This technique also opens up new possibilities for fabricating photonic devices in highly nonlinear glasses such as heavy ...
Corbari, Costantino, Kazansky, Peter G., Yang, Weijia, Sakaguchi, Koichi   +3 more
core   +1 more source

3D nanoripples, self-assembled form birefringence and ultrafast laser calligraphy in transparent materials

, 2009
Modification of transparent materials with ultrafast lasers has attracted considerable interest due to a wide range of applications including laser surgery, integrated optics, optical data storage, 3D micro- and nanostructuring [1]. Three different types
Svirko, Yuri P., Shimotsuma, Yasuhiko, Hirao, Kazuyuki, Qiu, Jiarong, Kazansky, Peter G., Sakakura, Masaaki, Yang, Weijia, Beresna, Martynas, Miura, Kiyotaka   +8 more
core   +1 more source

Research on green femtosecond laser cutting mechanism for CVD diamonds

Journal of the Mechanical Behavior of Materials
To investigate the ablation mechanism and characteristics of femtosecond laser cutting of CVD diamonds, experimental and theoretical studies were conducted. The effects of different laser parameters on kerf quality were studied.
Luo Bowei, Zhou Yongquan, Xiao Haibing, Xu Xiaomei, Wang Meng, Zhang Wei   +5 more
doaj   +1 more source

An Innervated Human Skin Equivalent that Electrically Encodes Mechanical and Thermal Stimuli

Advanced Science, EarlyView.
An innervated human skin equivalent is integrated with high‐density microelectrode arrays to reveal how engineered free nerve ending–like structures translate touch and temperature into electrical codes. Mechanical indentation and thermal stimulation engage the engineered somatosensory circuitry and evoke distinct firing and waveform signatures ...
Daniele Bellantoni, Costantino Casale, Marika Sperduti, Nevio L. Tagliamonte, Giorgia Imparato, Loredana Zollo, Paolo A. Netti   +6 more
wiley   +1 more source