Results 41 to 50 of about 736,155 (269)

Observation of vacuum ultraviolet laser oscillation in nitric oxide

Applied Optics, 1993
We report recent experiments that demonstrate the line tunability of a fluorine laser-pumped nitric oxide laser. Laser oscillation has been observed at 589, 234, 226, 218, 211, and 163 nm. The possibility of achieving laser oscillation on further UV and vacuum UV laser transitions in nitric oxide is discussed.
Haxell, A, Hooker, S, Webb, C
openaire   +2 more sources

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

Bright continuously tunable vacuum ultraviolet source for ultrafast spectroscopy

Communications Physics
Ultrafast electron dynamics drive phenomena such as photochemical reactions, catalysis, and light harvesting. To capture such dynamics in real-time, femtosecond to attosecond light sources are extensively used.
Lucie Jurkovičová, Ltaief Ben Ltaief, Andreas Hult Roos, Ondřej Hort, Ondřej Finke, Martin Albrecht, Ziaul Hoque, Eva Klimešová, Akgash Sundaralingam, Roman Antipenkov, Annika Grenfell, Alexandr Špaček, Wojciech Szuba, Maria Krikunova, Marcel Mudrich, Jaroslav Nejdl, Jakob Andreasson   +16 more
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

Studies on Novel Cs2Te Photocathode Based on Surface Plasmon Polaritons

Yuanzineng kexue jishu
Cathodes serve as sources of electron beams, and their performance plays a great part of beam quality in electron accelerators. The introduction of surface plasmon polaritons (SPPs) into different photocathodes has been investigated to increase their ...
LIU Zishuo1, DAI Zeyi1, GUAN Jiabao1, LIU Lanxin1, ZHONG Jianhua1, JIANG Zenggong2, , WANG Jike1, , NIE Yuancun1,
doaj   +1 more source

Using the longitudinal space charge instability for generation of vacuum ultraviolet and x-ray radiation

Physical Review Special Topics. Accelerators and Beams, 2010
Longitudinal space charge (LSC) driven microbunching instability in electron beam formation systems of x-ray free-electron lasers (FELs) is a recently discovered effect hampering beam instrumentation and FEL operation.
E. A. Schneidmiller, M. V. Yurkov
doaj   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Secondary electron emission in a photocathode rf gun

Physical Review Special Topics. Accelerators and Beams, 2005
During the last decades, photocathode rf guns have been proven to be successful for providing very high quality electron beams required for vacuum ultraviolet and x-ray free-electron lasers.
J. H. Han, M. Krasilnikov, K. Flöttmann
doaj   +1 more source

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

Advanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee, Byung Ik Park, Gihyeon Yim, Hyunjae Yoo, Sangjun Ma, Jundong Park, Jeong‐Yun Sun   +6 more
wiley   +1 more source

Wavelength switching and scanning of the high-gain harmonic generation free-electron laser at the Dalian Coherent Light Source

Physical Review Accelerators and Beams
The continuous wavelength tunability of free-electron lasers (FELs) offers significant potential for research across various scientific fields. The Dalian Coherent Light Source (DCLS), when operating in the high-gain harmonic generation (HGHG) mode, has ...
Xinmeng Li, Yong Yu, Qinming Li, Siyue Liu, Chong Wang, Jiami Zhou, Feiyang Yin, Xu Shi, Jitao Sun, Jiahang Shao, Xiaofan Wang, Zhigang He, Wenrui Dong, Ling Jiang, Jiayue Yang, Guorong Wu, Weiqing Zhang, Xueming Yang   +17 more
doaj   +1 more source