Results 121 to 130 of about 345,721 (314)

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

LD Pumped All-Solid-State Green Laser [PDF]

, 2008
激光二极管泵浦全固态激光器(DPSSL)具有效率高、寿命长、结构紧凑、稳定可靠等特点，已成为国际激光领域研究的热点。目前Nd:YVO4和Nd:YAG晶体以其优良的物理、化学及激光特性，被广泛的应用在各类激光产品中。本文对LD端面泵浦全固态Nd:YAG/KTP、Nd:YVO4/KTP连续绿光激光器进行了理论对比和实验研究。首先，回顾全固态激光器的发展历史；介绍绿光激光器的应用及发展现状。其次，对比Nd:YVO4和Nd:YAG的晶体特性；对激光二极管端面泵浦Nd:YVO4/Nd ...
石梦静
core  

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

An 8-W diode side pumped solid-state 593-nm laser

, 2011
We report a double z-type folded plane-plane symmetrical cavity diode side pumped solid state yellow-orange laser at 593 nm by using intracavity sum-frequency mixing.
Lin XC, Guo L, Yan FJ, Xiong B, Li JM, Chen R, Yan X, Chen, R (reprint author), Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China, rchen@semi.ac.cn   +7 more
core  

Review of long period fiber gratings written by CO₂ laser

, 2010
This paper presents a systematic review of long period fiber gratings (LPFGs) written by the CO2 laser irradiation technique. First, various fabrication techniques based on CO2 laser irradiations are demonstrated to write LPFGs in different types of ...
Yiping Wang, Wang, Yiping
core   +1 more source

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

Advanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee, Sofía Cruces, Xiaohua Liu, Yang Chen, Vasilis A. Maroufidis, Janghyun Jo, Lukas Völkel, Dennis Braun, Michael Möller, Leon Brackmann, Holger Kalisch, Michael Heuken, Andrei Vescan, Rafal E. Dunin‐Borkowski, Joachim Mayer, Stefan Wiefels, Max C. Lemme   +16 more
wiley   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Low-threshold, mirrorless emission at 981nm in an Yb,Gd,Lu:KYW inverted rib waveguide laser

In this work, we demonstrate 3-level laser operation in a Yb,Gd,Lu:KYW waveguide laser fabricated by combination of liquid phase epitaxy and Ar+ ion beam milling. Laser emission was observed at 981 nm with an absorbed threshold power of 23 mW and a slope
Aguiló, M., Bolaños, W., Shepherd, D.P., Choudhary, Amol, Díaz, F., Carvajal, J.J., Pradeesh, Kannan   +6 more
core   +1 more source

High-Power Continuous-Wave Nd:GdVO4 Solid-State Laser Dual-End-Pumped at 880nm

, 2015
A high-power cw all-solid-state Nd:GdVO4 laser operating at 880nm is reported. The laser consists of a low doped level Nd: GdVO4 crystal dual-end-pumped by two high-power diode lasers and a compact negative confocal unstable-stable hybrid resonator.
Jiang Y, Xing JC, Xin JG, Zhang, HL (reprint author), Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China., Sang SH, Zhang X, 余西龙, Mao YF, Zhang HL   +8 more
core   +1 more source