wire arrays
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Author(s):  
Konstantin Nikolaevich Mitrofanov ◽  
Vladimir Vasil'evich Aleksandrov ◽  
Aleksadr Viktorovich Branitski ◽  
Evgenii Valentinivich Grabovskiy ◽  
Arkadii Gritsuk ◽  
...  

Abstract The results of experiments on the study of plasma compression of nested wire arrays of mixed composition and the generation of powerful pulses of soft X-ray radiation (SXR), carried out on a powerful electrophysical facility Angara-5-1 at a current level of up to 3 MA, are presented. Based on the latest experimental data on the intensity of plasma formation of various substances m& (in μg/(cm2×ns)) [1] and on the features of the dynamics of plasma compression in nested arrays [2], a nested wire array design has been developed which makes it possible to obtain a high peak SXR power in comparison with the known designs of single and nested tungsten wire arrays. During the implosion of nested arrays of mixed composition, consisting of plastic fibers and tungsten wires, shorter and more powerful SXR pulses were obtained with a maximum peak power PSXRmax~10 TW with a FWHM duration of ~5 ns compared to the parameters of SXR pulses upon compression of single tungsten arrays: PSXRmax~5 TW and FWHM~10 ns. Thus, under the conditions of our experiments, we have shown the possibility of a twofold increase in the peak SXR power during compression of nested arrays by optimizing their design.


2021 ◽  
Vol 28 (10) ◽  
pp. 103102
Author(s):  
A. J. Kemp ◽  
S. C. Wilks ◽  
G. Cochran ◽  
S. Kerr ◽  
J. Park ◽  
...  

2021 ◽  
Author(s):  
Christopher J. Butcher ◽  
Victor L. Kantsyrev ◽  
Alla S. Safronova ◽  
Veronica V. Shlyaptseva ◽  
Ishor K. Shrestha ◽  
...  

2021 ◽  
Author(s):  
D. Maler ◽  
S. Efimov ◽  
A. Rososhek ◽  
S. N. Bland ◽  
Ya. E. Krasik

2021 ◽  
Vol 28 (8) ◽  
pp. 082702
Author(s):  
C. J. Butcher ◽  
V. L. Kantsyrev ◽  
A. S. Safronova ◽  
V. V. Shlyaptseva ◽  
I. K. Shrestha ◽  
...  
Keyword(s):  

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4267
Author(s):  
Kuo-Hui Wu ◽  
Ryota Sakamoto ◽  
Hiroaki Maeda ◽  
Eunice Jia Han Phua ◽  
Hiroshi Nishihara

We developed an efficient and convenient electrochemical method to synthesize π-conjugated redox metal-complex linear polymer wires composed of azobenzene-bridged bis(terpyridine)metal (2-M, M = Fe, Ru) units covalently immobilized on glassy carbon (GC). Polymerization proceeds by electrochemical oxidation of bis(4′-(4-anilino)-2,2′:6′,2″-terpyridine)metal (1-M) in a water–acetonitrile–HClO4 solution, affording ultralong wires up to 7400 mers (corresponding to ca. 15 μm). Both 2-Fe and 2-Ru undergo reversible redox reactions, and their redox behaviors indicate remarkably fast redox conduction. Anisotropic hetero-metal-complex polymer wires with Fe and Ru centers are constructed via stepwise electropolymerization. The cyclic voltammograms of two hetero-metal-complex polymer wires, GC/[2-Fe]–[2-Ru] (3) and GC/[2-Ru]–[2-Fe] (4), show irreversible redox reactions with opposite electron transfer characteristics, indicating redox diodelike behavior. In short, the present electrochemical method is useful to synthesize polymer wire arrays and to integrate functional molecules on carbon.


2021 ◽  
Vol 28 (6) ◽  
pp. 063509
Author(s):  
D. Maler ◽  
S. Efimov ◽  
A. Rososhek ◽  
S. N. Bland ◽  
Ya. E. Krasik
Keyword(s):  

2021 ◽  
Vol 8 ◽  
Author(s):  
Yafeng Lu ◽  
Chen Wang ◽  
Shiqiang Zhao ◽  
Yongzheng Wen

Graphene is a promising platform for configurable terahertz (THz) devices due to its reconfigurability, but most researches focus on its electrical tunability. Here, we propose a graphene-based THz metasurface comprised of graphene cut-wire arrays for magnetic manipulation of the THz wave. With the external magnetostatic field applied, the resonant currents of the graphene cut-wire can be effectively affected by the Lorentz force, leading to an evident tuning of the response of the metasurface. The simulated results fully demonstrate that the resonance frequencies of the graphene THz metasurface can be efficiently modulated under a vertical magnetostatic field bias, resulting in the manipulation of the transmittance and phase of the THz wave. As a new method of the tunable THz metasurface, our structure shows promising applications in the THz regime, including the ultracompact THz modulators and magnetic field sensors.


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