Search Results - "Stathopoulos, Nikolaos A."

Evaluation of an Erbium-Doped Fiber Ring Laser as an Edge Filtering Device for Fiber Bragg Grating Sensor Interrogation by Stathopoulos, Nikolaos A., Lazakis, Christos, Simos, Iraklis, Simos, Christos

“…An easy-to-implement and cost-effective Fiber Bragg Grating (FBG) sensor interrogation technique based on a ring Erbium-Doped Fiber Laser (EDFL) topology is…”
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Experiments on the Pulse Repetition Frequency Optimization of 1.3-GHz, 100-kW Microwave Pulse Compressor by Savaidis, Stylianos P., Mitilineos, Stelios A., Ioannidis, Zisis C., Stathopoulos, Nikolaos A.

“…A microwave pulse compressor (MPC) system formed by an inductive iris, a straight rectangular waveguide, and an H-plane T-junction is experimentally studied…”
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Solution processable tungsten polyoxometalate as highly effective cathode interlayer for improved efficiency and stability polymer solar cells by Palilis, Leonidas C., Vasilopoulou, Maria, Douvas, Antonios M., Georgiadou, Dimitra G., Kennou, Stella, Stathopoulos, Nikolaos A., Constantoudis, Vassilios, Argitis, Panagiotis

“…We report for the first time the use of a water-soluble, tungsten polyoxometalate H3PW12O40 (PW12-POM) as an efficient cathode interlayer incorporated into…”
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Solution-Processed Hydrogen Molybdenum Bronzes as Highly Conductive Anode Interlayers in Efficient Organic Photovoltaics by Soultati, Anastasia, Douvas, Antonios M., Georgiadou, Dimitra G., Palilis, Leonidas C., Bein, Thomas, Feckl, Johann M., Gardelis, Spyros, Fakis, Mihalis, Kennou, Stella, Falaras, Polycarpos, Stergiopoulos, Thomas, Stathopoulos, Nikolaos A., Davazoglou, Dimitris, Argitis, Panagiotis, Vasilopoulou, Maria

“…Highly efficient and stable organic photovoltaic (OPV) cells are demonstrated by incorporating solution‐processed hydrogen molybdenum bronzes as anode…”
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Design of Waveguide Microwave Pulse Compressors Using Equivalent Circuits by Savaidis, Stylianos P., Ioannidis, Zisis C., Mitilineos, Stelios A., Stathopoulos, Nikolaos A.

“…Microwave pulse compression using a waveguide cavity formed by an inductive iris and an H-plane T-junction with the auxiliary arm shorted is studied. The…”
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High performance organic light emitting diodes using substoichiometric tungsten oxide as efficient hole injection layer by Vasilopoulou, Maria, Papadimitropoulos, George, Palilis, Leonidas C., Georgiadou, Dimitra G., Argitis, Panagiotis, Kennou, Stella, Kostis, Ioannis, Vourdas, Nikolaos, Stathopoulos, Nikolaos A., Davazoglou, Dimitris

“…[Display omitted] ► Hydrogen reduced tungsten oxides with controlled stoichiometry. ► Beneficial optical properties, surface morphology and increased…”
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A Reconfigurable Multichannel Capacitive Sensor Array Interface by Kyriakis-Bitzaros, E. D., Stathopoulos, N. A., Pavlos, S., Goustouridis, D., Chatzandroulis, S.

“…The design of a reconfigurable capacitive sensor array interface comprised of a subsystem able to read an array of capacitive-type sensors and an embedded…”
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Atomic layer deposited zirconium oxide electron injection layer for efficient organic light emitting diodes by Vasilopoulou, Maria, Kennou, Stella, Ladas, Spyridon, Georga, Stavroula N., Botzakaki, Martha, Skarlatos, Dimitrios, Krontiras, Christoforos A., Stathopoulos, Nikolaos A., Argitis, Panagiotis, Palilis, Leonidas C.

“…In this work, we demonstrate that a thin zirconium oxide (ZrO2) layer formed on top of the organic semiconductor by atomic layer deposition (ALD) in low…”
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Hybrid Field/Transmission-Line Model for the Study of Coaxial Corrugated Waveguides by Savaidis, S. P., Ioannidis, Z. C., Stathopoulos, N. A.

“…A transmission-line model is reformulated and combined with field theory to study the propagation characteristics in coaxial waveguides with wedge-shaped…”
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Optical Modeling of Hybrid Polymer Solar Cells Using a Transmission-Line Model and Comparison With Experimental Results by Stathopoulos, Nikolaos A, Palilis, Leonidas C, Savaidis, Stylianos P, Yesayan, Stephan R, Vasilopoulou, Maria, Papadimitropoulos, Giorgos, Davazoglou, Dimitris, Argitis, Panagiotis

“…Organic photovoltaic (OPV) cells provide an efficient alternative solution compared to traditional PV devices. Their conversion efficiency is directly…”
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Simulation of Light Emission From Planar Multilayer OLEDs, Using a Transmission-Line Model by Savaidis, S.P., Stathopoulos, N.A.

“…In this paper, we propose a fast, accurate, and easy to implement transmission-line model, which evaluates light emission from planar multilayer OLED devices…”
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Modelling of non-uniform and fs-Laser inscribed fibre Bragg gratings by Stathopoulos, Nikolaos A., Simos, Iraklis

“…•Discrete simulation methods DTMM and TLM, for non-uniform FBGs and fs-Laser inscribed FBGs.•Analysis of chirped, apodized and Erbium-doped gratings for…”
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Simulation and properties of Erbium-Doped Distributed Bragg Reflectors (ED-DBRs) and Fiber Bragg Gratings (ED-FBGs) by Stathopoulos, Nikolaos A., Savaidis, Stylianos P., Simos, Hercules, Rangoussi, Maria, Kervalishvili, Paata

“…•Erbium doped planar distributed Bragg reflectors and fiber Bragg gratings are simulated.•The potential to control the reflection by the external pump power is…”
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