| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bøggild, Peter
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (46/46 displayed)
- 2024Mapping nanoscale carrier confinement in polycrystalline graphene by terahertz spectroscopycitations
- 2024Mapping nanoscale carrier confinement in polycrystalline graphene by terahertz spectroscopycitations
- 2024Mapping nanoscale carrier confinement in polycrystalline graphene by terahertz spectroscopycitations
- 2024Mapping nanoscale carrier confinement in polycrystalline graphene by terahertz spectroscopycitations
- 2024Mapping nanoscale carrier confinement in polycrystalline graphene by terahertz spectroscopy.
- 2023Terahertz Cross-Correlation Spectroscopy and Imaging of Large-Area Graphenecitations
- 2023Probing Carrier Dynamics in Large-Scale MBE-Grown PtSe2 Films by Terahertz Spectroscopycitations
- 2022Chemical Vapor-Deposited Graphene on Ultraflat Copper Foils for van der Waals Hetero-Assemblycitations
- 2022Chemical Vapor-Deposited Graphene on Ultraflat Copper Foils for van der Waals Hetero-Assemblycitations
- 2022Two-dimensional material and heterostructures on an intermediate polymer transfer layer and their fabrication
- 2021Super-Resolution Nanolithography of Two-Dimensional Materials by Anisotropic Etchingcitations
- 2021Nonlinear conductivity response of graphene on thin polymeric film detected by reflection-mode air-plasma THz-TDS
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materials
- 2020Fermi velocity renormalization in graphene probed by terahertz time-domain spectroscopycitations
- 2019Electrostatics of metal-graphene interfaces: sharp p-n junctions for electron-optical applicationscitations
- 2019Wafer-Scale Synthesis of Graphene on Sapphire: Toward Fab-Compatible Graphenecitations
- 2019Wafer-Scale Synthesis of Graphene on Sapphire: Toward Fab-Compatible Graphenecitations
- 2018Conductivity mapping of graphene on polymeric films by terahertz time-domain spectroscopycitations
- 2018Complete long-term corrosion protection with chemical vapor deposited graphenecitations
- 2017Structural Transformations in Two-Dimensional Transition-Metal Dichalcogenide MoS 2 under an Electron Beam:Insights from First-Principles Calculationscitations
- 2017Sputtering an exterior metal coating on copper enclosure for large-scale growth of single-crystalline graphene:Papercitations
- 2017Sputtering an exterior metal coating on copper enclosure for large-scale growth of single-crystalline graphenecitations
- 2016Copper Oxidation through Nucleation Sites of Chemical Vapor Deposited Graphenecitations
- 2015Transfer of Direct and Moiré Patterns by Reactive Ion Etching Through Ex Situ Fabricated Nanoporous Polymer Maskscitations
- 2015Terahertz wafer-scale mobility mapping of graphene on insulating substrates without a gatecitations
- 2014Graphene Coatings:The Real Deal
- 2014Pattern recognition approach to quantify the atomic structure of graphenecitations
- 2013Out-of-plane bending based on SiN-ion-irradiation and bilayer structures for easy access for micromanipulationcitations
- 2013Graphene Based Terahertz Absorber Designed With Effective Surface Conductivity Approach
- 2013Graphene Based Terahertz Absorber Designed With Effective Surface Conductivity Approach
- 2012Graphene Oxide as a Monoatomic Blocking Layercitations
- 2012Controllable chemical vapor deposition of large area uniform nanocrystalline graphene directly on silicon dioxidecitations
- 2011Titanium tungsten coatings for bioelectrochemical applications
- 2011In situ transmission electron microscopy analyses of thermally annealed self catalyzed GaAs nanowires grown by molecular beam epitaxy
- 2010Customizable in situ TEM devices fabricated in freestanding membranes by focused ion beam millingcitations
- 2010Customizable in situ TEM devices fabricated in freestanding membranes by focused ion beam millingcitations
- 2009Carbon nanotubes integrated in electrically insulated channels for lab-on-a-chip applicationscitations
- 2008Epitaxial Integration of Nanowires in Microsystems by Local Micrometer Scale Vapor Phase Epitaxycitations
- 2003Soldering of Nanotubes onto Microelectrodescitations
- 2003Solid gold nanostructures fabricated by electron beam depositioncitations
- 2001Customizable nanotweezers for manipulation of free-standing nanostructurescitations
Places of action
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document
Graphene Based Terahertz Absorber Designed With Effective Surface Conductivity Approach
Abstract
Young field of terahertz (THz) science and technology demands new materials and devices, such as filters, modulators, polarization converters and absorbers. Graphene, a recently discovered single-atom-thick material, provides exciting properties for functional terahertz applications. Graphene is flexible and ultrastrong mechanically, transparent for optical radiation, with high electrical conductivity that can be tuned by electrochemical potential. Structured graphene layers constitute metamaterials that can provide tunable and very unusual electromagnetic properties.<br/>In this contribution we present the description of graphene metamaterial properties through the effective surface conductivity. Such description is very convenient, as it simplifies the design of THz devices, and very natural, since surface conductivity can be measured directly in experiment. We show how to extract the effective conductivity and how to use it in optical design. <br/>We demonstrate a tunable THz perfect absorber, which consists of continuous graphene various structured graphene metamaterials above a metal mirror. Changing the Fermi level from 0 eV to 0.5 eV allows for drastic changes in absorbance from less than 0.1 to 1 in the working range. We demonstrate the possibility of the absorber bandwidth control with the metamaterial’s unit cell geometry.<br/>The results of fabrication and characterization of the THz graphene metamaterials based absorbers will be presented at the conference.