Results 91 to 100 of about 81,341 (318)

An electron Talbot interferometer

, 2008
The Talbot effect, in which a wave imprinted with transverse periodicity reconstructs itself at regular intervals, is a diffraction phenomenon that occurs in many physical systems.
Alexander D Cronin, Bates W J, Benjamin J McMorran, Bhattacharya J C, Goldstein J I, Gronniger G, Patorski K, Spence J C H, Talbot H F   +8 more
core   +1 more source

Engineering Topographical Cues to Enhance Neural Regeneration in Spinal Cord Injury: Overcoming Challenges and Advancing Therapies

Advanced Functional Materials, EarlyView.
Spinal cord injury (SCI) poses significant challenges for regeneration due to a series of secondary injury mechanisms. How to use biomaterial approach to target the failed regeneration after SCI remains a critical challenge. This review systematically evaluates current strategies to optimize biomaterial topographies for neurite outgrowth, axonal ...
Wei Xu, Fenghui Wang, Joshua Stein, Siqiao Wang, Pengfei Jiang, Letao Yang, Liming Cheng, Ki‐Bum Lee   +7 more
wiley   +1 more source

Smith-Purcell Radiation from Low-Energy Electrons

, 2017
Recent advances in the fabrication of nanostructures and nanoscale features in metasurfaces offer a new prospect for generating visible, light emission from low energy electrons.
Berggren, Karl K., Kaminer, Ido, Kooi, Steven E., Massuda, Aviram, Murdia, Chitraang, Roques-Carmes, Charles, Soljačić, Marin, Yang, Yi, Yang, Yujia   +8 more
core   +1 more source

Polymer‐Incorporated Mechanically Compliant Carbon Nanotube Microelectrode Arrays for Multichannel Neural Signal Recording

Advanced Functional Materials, EarlyView.
This work presents a soft microelectrode array based on vertically aligned carbon nanotube (CNT) forests, combining high conductivity with mechanical softness. A densification process and air‐pressure‐assisted flexibilization improve structural integrity, ensuring stable insertion and reduced inflammation.
Hyeonhee Roh, Kwangjun Kim, Chaesung Kim, Minju Kim, Minwook Kim, Sangjun Sim, Jongbaeg Kim, Jong G. Ok, Maesoon Im   +8 more
wiley   +1 more source

Top‐Down Fabrication of Ordered Nanophotonic Structures for Biomedical Applications

Advanced Materials Interfaces
The size, distribution, and specific shape of ordered nanophotonic structures are crucial for their biomedical applications. Bottom‐up approaches such as self‐assembly, emulsification, and precipitation are commonly fabricated nanophotonic structures ...
Baohua Wen, Ji Yang, Chao Hu, Jingxuan Cai, Jianhua Zhou   +4 more
doaj   +1 more source

Optimizing Josephson Junction Reproducibility in 30 kV E-Beam Lithography: An Analysis of Backscattered Electron Distribution

Nanomaterials
This paper explores methods to enhance the reproducibility of Josephson junctions, which are crucial elements in superconducting quantum technologies, when employing the Dolan technique in 30 kV e-beam processes.
Arthur M. Rebello, Lucas M. Ruela, Gustavo Moreto, Naiara Y. Klein, Eldues Martins, Ivan S. Oliveira, João P. Sinnecker, Francisco Rouxinol   +7 more
doaj   +1 more source

Fabrication of high-resolution nanostructures of complex geometry by the single-spot nanolithography method

Beilstein Journal of Nanotechnology, 2015
The paper presents a method for the high-resolution production of polymer nanopatterns with controllable geometrical parameters by means of a single-spot electron-beam lithography technique.
Alexander Samardak, Margarita Anisimova, Aleksei Samardak, Alexey Ognev   +3 more
doaj   +1 more source

Gated PN Junction in Ambipolar MoS2 for Superior Self‐Powered Photodetection

Advanced Functional Materials, EarlyView.
A high‐quality gated pn junction based on ambipolar molybdenum disulfide (MoS2) is demonstrated by employing a partial‐gate structure and a Pt bottom contact that forms a semi‐van der Waals interface, facilitating efficient hole injection into the channel.
Jaeha Hwang, Jungi Song, Hanbyeol Jang, Yongwook Seok, Jiwi Park, Suyeon Lee, Jun‐Hyeok Choi, Gyeongsu Lee, Kenji Watanabe, Takashi Taniguchi, Byoung Hun Lee, Kyoungsik Yu, Kayoung Lee   +12 more
wiley   +1 more source

Domain Nucleation and Growth in an Epitaxially Grown Wurtzite Ferroelectric

Advanced Functional Materials, EarlyView.
Ferroelectric domain nucleation and growth in epitaxial wurtzite (Al, B, Sc)N films are visualized through in situ transmission electron microscopy. Domains initiate near the bottom electrode and propagate laterally with zigzag walls, while unswitched regions remain near the electrode interfaces.
Sebastian Calderon, Chloe Skidmore, Jon‐Paul Maria, Elizabeth C. Dickey   +3 more
wiley   +1 more source

Fabrication of high quality sub-micron Au gratings over large areas with pulsed laser interference lithography for SPR sensors

, 2012
Metallic gratings were fabricated using high energy laser interference lithography with a frequency tripled Nd:YAG nanosecond laser. The grating structures were first recorded in a photosensitive layer and afterwards transferred to an Au film.
Arriola, Alexander, Fuerbach, Alexander, Olaizola, Santiago M., Perez, Noemi, Rodriguez, Ainara, Tavera, Txaber, Withford, Michael J.   +6 more
core   +1 more source