Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Konstantinos Aidinis"'
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
The mode coupling in a graded-index polymer photonic crystal fiber (GI PPCF) with a solid core has been investigated using the Langevin equation. Based on the computer-simulated Langevin force, the Langevin equation is numerically integrated. The num
Externí odkaz:
https://doaj.org/article/a798aba2283f417895f23bba5a6f45f6
Autor:
Anastasia Soultati, Konstantinos Aidinis, Alexander Chroneos, Maria Vasilopoulou, Dimitris Davazoglou
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract The surface electric conduction in amorphous and crystallized molybdenum oxide films was studied as a function of electronic structure by current–voltage and simultaneous spectroscopic ellipsometry measurements on structures of the kind Al
Externí odkaz:
https://doaj.org/article/716cb6d7f23744f5998333d9b17ded3e
Autor:
Ana Simović, Svetislav Savović, Zhuo Wang, Branko Drljača, Milan S. Kovačević, Ljubica Kuzmanović, Alexandar Djordjevich, Konstantinos Aidinis, Chen Chen
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
Up to now, there have been no commercial simulation tools accessible for researching the transmission properties of multimode microstructured optical fibers (MOFs). In order to avoid this problem, this study uses the time-independent power flow equat
Externí odkaz:
https://doaj.org/article/c0bc1d817d6447248ecfcb534a36dcc4
Autor:
Rafał Pelka, Urszula Nowosielecka, Kamila Klimza, Izabela Moszyńska, Konstantinos Aidinis, Grzegorz Żołnierkiewicz, Aleksander Guskos, Nikos Guskos
Publikováno v:
Crystals, Vol 14, Iss 4, p 363 (2024)
A series of nanocrystalline iron oxide samples (M1–M5) which differ from each other in average crystallite size (from 26 to 37 nm) was studied. The raw material was nanocrystalline iron with an average crystallite size equal to 21 nm promoted with
Externí odkaz:
https://doaj.org/article/db709aa0169c4da9933c05a783061c6d
Publikováno v:
Heliyon, Vol 9, Iss 7, Pp e18156- (2023)
The Langevin equation (LE) is used to evaluate mode coupling in multimode step-index polymer optical fiber (SI POF) that is both unstrained and strained. The numerical solution of the LE matches the numerical solution of the power flow equation (PFE)
Externí odkaz:
https://doaj.org/article/d7c96fed0999430f9456d5ea118b11a4
Publikováno v:
Heliyon, Vol 9, Iss 5, Pp e15882- (2023)
The feasible distance is presented for space division multiplexed (SDM) transmission along multimode silica step-index photonic crystal fiber (SI PCF) by solving the time-independent power flow equation (TI PFE). These distances for two and three spa
Externí odkaz:
https://doaj.org/article/85e465694edb40ab99dc8365a1c32f77
Publikováno v:
IET Optoelectronics, Vol 16, Iss 1, Pp 34-46 (2022)
Abstract The purpose of this work is to present a method for designing planar waveguide couplers of arbitrary modal electric field distributions. The idea here is to create couplers with unusual electric fields, which confine in one planar waveguide.
Externí odkaz:
https://doaj.org/article/a598803a0eb94a3d90eb3a2c179c55fa
Publikováno v:
Energies, Vol 16, Iss 18, p 6485 (2023)
In recent years, the tremendous increase in data traffic carried by wireless communication networks has generated the urgent need for establishing more energy-efficient wireless communication systems. Recent advances in semiconductor and light device
Externí odkaz:
https://doaj.org/article/5bbba1334d084a3097263d2f25a14918
Autor:
Nikoleta Vitsi, Argyris N. Stassinakis, Nikolaos A. Androutsos, George D. Roumelas, George K. Varotsos, Konstantinos Aidinis, Hector E. Nistazakis
Publikováno v:
Computation, Vol 11, Iss 8, p 161 (2023)
Visible light positioning systems (VLP) have attracted significant commercial and research interest because of the many advantages they possess over other applications such as radio frequency (RF) positioning systems. In this work, an experimental co
Externí odkaz:
https://doaj.org/article/d526e6dfc2054d6297e9ce0b2ae9a0cc
Autor:
Branko Drljača, Svetislav Savović, Milan S. Kovačević, Ana Simović, Ljubica Kuzmanović, Alexandar Djordjevich, Konstantinos Aidinis, Rui Min
Publikováno v:
Results in Physics, Vol 43, Iss , Pp 106124- (2022)
This paper investigates wavelength dependence of equilibrium mode distribution and steady-state distribution in W-type (double-clad) microstructured polymer optical fibers (mPOFs) with a solid core for parametrically varied refractive index and width
Externí odkaz:
https://doaj.org/article/702471cf223442d4966d5180a1b30d42