Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Ana Bărar"'
Publikováno v:
Nanomaterials, Vol 14, Iss 12, p 1056 (2024)
Left-handed materials are known to exhibit exotic properties in controlling electromagnetic fields, with direct applications in negative reflection and refraction, conformal optical mapping, and electromagnetic cloaking. While typical left-handed mat
Externí odkaz:
https://doaj.org/article/57203779c1154aeeb4f9453b2e10ad8d
Publikováno v:
Materials, Vol 16, Iss 11, p 3934 (2023)
Reflective loss is one of the main factors contributing to power conversion efficiency limitation in thin-film perovskite solar cells. This issue has been tackled through several approaches, such as anti-reflective coatings, surface texturing, or sup
Externí odkaz:
https://doaj.org/article/d82323020cae4d2495c47c7fcf3d7fae
Autor:
Ana Bărar, Octavian Dănilă
Publikováno v:
Materials, Vol 15, Iss 17, p 5944 (2022)
We report theoretical investigations on the spectral behavior of two fractal metasurfaces, performed in the 3–6 THz frequency window (5–10 μm equivalent wavelength window), under illumination with both linear and circular polarization state fiel
Externí odkaz:
https://doaj.org/article/90c85f21f0c1407e88e33fa978656d59
Publikováno v:
Materials, Vol 14, Iss 24, p 7842 (2021)
The complete understanding of the electromagnetic field characteristics in artificially created bulk or thin media is essential to the efficient harnessing of the multitude of linear and nonlinear effects resulting from it. Due to the fact that recen
Externí odkaz:
https://doaj.org/article/fc4fbe804e174f818c831a5e360dffdb
Publikováno v:
Sensors, Vol 21, Iss 16, p 5600 (2021)
We report simulations on the spectral behavior of non-layered gold-silicon and all-silicon frequency-selective metasurfaces in an asymmetric element configuration in the mid-infrared spectral window of 5–5.8 μm. The non-layered layout is experimen
Externí odkaz:
https://doaj.org/article/132bb1eca62546ed99e504d56c7d721d
Autor:
Victor Damian, Adrian Tulbure, Ana Bărar, Marian Vladescu, Paul Schiopu, A. E. Marcu, Alexandru Craciun
Publikováno v:
Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X.
Time-Domain Terahertz Spectroscopy (TDTS) is a rapidly developing measurement technique constantly finding new applications in various areas of materials science such as measurements of material constants of solids [1]. Terahertz frequencies i.e. fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::678853944e840ee6e3aecb03a92200fc
https://doi.org/10.1117/12.2571746
https://doi.org/10.1117/12.2571746
Publikováno v:
Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X.
Population exposure to a series of harmful factors, such as pollution or pesticides, as well as drug abuse, leads to an increase in the number of cases of human intoxication. Even small traces of harmful xenobiotics in the human body may lead to seri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de6944ccb584f45f73c15d130c779383
https://doi.org/10.1117/12.2572073
https://doi.org/10.1117/12.2572073
Autor:
A. V. Konkolovich, Ana Bărar, Valery A. Loiko, Octavian Danila, Paul C. Ganea, Doina Manaila-Maximean, Viorel Cîrcu
Publikováno v:
Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X.
Polymer Dispersed Liquid Crystal (PDLC) films are composite materials consisting of LC droplets embedded in polymers. In order to decrease the switching voltage of these devices, we prepared PDLC films doped with single wall carbon nanotubes (SWCNTs)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11fce279e5db34d97ec4e7802d760044
https://doi.org/10.1117/12.2572104
https://doi.org/10.1117/12.2572104
Publikováno v:
IFMBE Proceedings ISBN: 9783030318659
We present theoretical studies conducted on the newly-introduced controllable metamaterial—liquid crystal system. Our model consists of a standard metamaterial single cell split ring resonator array with dimensions tailored to match a desired frequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e60c145cb059ceabd1e0396d1c03f7f
https://doi.org/10.1007/978-3-030-31866-6_58
https://doi.org/10.1007/978-3-030-31866-6_58
Publikováno v:
2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI).
This paper presents the design considerations for a special solar spectrum simulator, based on LED technology, specifically conceived for the characterization of porphyrin-based dye-sensitized solar cells.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e99ade87527e5db9858dcc493972aa5
https://doi.org/10.1109/ecai46879.2019.9042086
https://doi.org/10.1109/ecai46879.2019.9042086