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Surname: 
Zografopoulos
Firstname: 
Dimitrios
Position: 
Staff
Profile: 
Researcher
Phone: 
+39 06 4993 4571
Activity: 

Photonics, metamaterials, liquid crystals, plasmonics, terahertz science, computational electromagnetics

Curriculum: 

Dimitrios Zografopoulos was born in Thessaloniki, Greece, in 1980. He received the Diploma in Electrical and Computer Engineering and the Doctorate degree from the Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece, in 2003 and 2009, respectively.

In 2010, he was a Postdoctoral Fellow of the Research Committee of the AUTH and in 2011 a Post-doctoral Research Fellow of the Greek States Scholarship Foundation and a Visiting Research Fellow at the Department of Electronics Technology, Carlos III University of Madrid. He subsequently moved under a two-year Intra-European Marie-Curie Fellowship to the Institute for Microelectronics and Microsystems of the Italian National Research Council of Italy, Rome, where he is currently employed as a Researcher.

His current research interests include the investigation of photonic/plasmonic waveguides, tunable metamaterials and metasurfaces, and the interaction between electromagnetic waves and liquid crystals. He is the author or coauthor of more than 70 scientific papers in international journals and 2 book chapters.

Curriculum (PDF): 
Source: 

Scientific Productions

L Maiolo, A Ferraro, F Maita, R Beccherelli, EE Kriezis, TV Yioultsis, DC Zografopoulos

Quarter-wave plate metasurfaces on electromagnetically thin polyimide substrates

Applied Physics Letters [AIP Publishing], Volume: 115 Issue: 24 Pages: 241602

Borislav Vasic, Goran Isic, Romeo Beccherelli, Dimitrios C Zografopoulos

Tunable beam steering at terahertz frequencies using reconfigurable metasurfaces coupled with liquid crystals

IEEE Journal of Selected Topics in Quantum Electronics [IEEE],

A Ferraro, AA Tanga, DC Zografopoulos, GC Messina, M Ortolani, R Beccherelli

Guided mode resonance flat-top bandpass filter for terahertz telecom applications

Optics letters [Optical Society of America], Volume: 44 Issue: 17 Pages: 4239-4242

Dimitrios C Zografopoulos, Antonio Ferraro, José Francisco Algorri, Pedro Martín‐Mateos, Braulio García‐Cámara, Aldo Moreno‐Oyervides, Viktor Krozer, Pablo Acedo, Ricardo Vergaz, José Manuel Sánchez‐Pena, Romeo Beccherelli

All‐Dielectric Silicon Metasurface with Strong Subterahertz Toroidal Dipole Resonance

Advanced Optical Materials [], Pages: 1900777

Dimitrios C Zografopoulos, José Francisco Algorri, Antonio Ferraro, Braulio García-Cámara, José Manuel Sánchez-Pena, Romeo Beccherelli

Toroidal metasurface resonances in microwave waveguides

Scientific reports [Nature Publishing Group], Volume: 9 Issue: 1 Pages: 7544

Goran Isić, Georgios Sinatkas, Dimitrios C Zografopoulos, Borislav Vasić, Antonio Ferraro, Romeo Beccherelli, Emmanouil E Kriezis, Milivoj Belić

Electrically Tunable Metal–Semiconductor–Metal Terahertz Metasurface Modulators

IEEE Journal of Selected Topics in Quantum Electronics [IEEE], Volume: 25 Issue: 3 Pages: 1-8

Silvia Tofani, Dimitrios C Zografopoulos, Mauro Missori, Renato Fastampa, Romeo Beccherelli

Terahertz focusing properties of polymeric zone plates characterized by a modified knife-edge technique

JOSA B [Optical Society of America], Volume: 36 Issue: 5 Pages: D88-D96

JF Algorri, DC Zografopoulos, A Ferraro, B García-Cámara, R Beccherelli, JM Sánchez-Pena

Ultrahigh-quality factor resonant dielectric metasurfaces based on hollow nanocuboids

Optics Express [Optical Society of America], Volume: 27 Issue: 5 Pages: 6320-6330

Dimitrios C Zografopoulos, Antonio Ferraro, Romeo Beccherelli

Liquid‐Crystal High‐Frequency Microwave Technology: Materials and Characterization

Advanced Materials Technologies [], Volume: 4 Issue: 2 Pages: 1800447

Goran Isic, Georgios Sinatkas, Dimitrios C Zografopoulos, Borislav Vasic, Antonio Ferraro, Romeo Beccherelli, Emmanouil E Kriezis, Milivoj R Belic

Electrically Tunable Metal-Semiconductor-Metal Terahertz Metasurface Modulators

IEEE Journal of Selected Topics in Quantum Electronics [IEEE],

José Algorri, Dimitrios Zografopoulos, Antonio Ferraro, Braulio García-Cámara, Ricardo Vergaz, Romeo Beccherelli, José Sánchez-Pena

Anapole Modes in Hollow Nanocuboid Dielectric Metasurfaces for Refractometric Sensing

Nanomaterials [Multidisciplinary Digital Publishing Institute], Volume: 9 Issue: 1 Pages: 30

Antonio Ferraro, Dimitrios C Zografopoulos, Roberto Caputo, Romeo Beccherelli

Guided-mode resonant narrowband terahertz filtering by periodic metallic stripe and patch arrays on cyclo-olefin substrates

Scientific reports [Nature Publishing Group], Volume: 8 Issue: 1 Pages: 17272

Konstantinos P Prokopidis, Dimitrios C Zografopoulos

One-Step Leapfrog ADI-FDTD Method Using the Complex-Conjugate Pole-Residue Pairs Dispersion Model

IEEE Microwave and Wireless Components Letters [IEEE], Volume: 28 Issue: 12 Pages: 1068-1070

Dimitrios C Zografopoulos, Konstantinos P Prokopidis, Antonio Ferraro, Luke Peters, Marco Peccianti, Romeo Beccherelli

Numerical and experimental time-domain characterization of terahertz conducting polymers

IEEE Photonics Technology Letters [IEEE], Volume: 30 Issue: 17 Pages: 1579-1582

Antonio Ferraro, Dimitrios C Zografopoulos, Marc A Verschuuren, Dick KG de Boer, Frank Kong, H Paul Urbach, Romeo Beccherelli, Roberto Caputo

Directional Emission of Fluorescent Dye-Doped Dielectric Nanogratings for Lighting Applications.

ACS applied materials & interfaces [American Chemical Society], Volume: 10 Issue: 29 Pages: 24750-24757

Walter Fuscaldo, Silvia Tofani, Dimitrios C Zografopoulos, Paolo Baccarelli, Paolo Burghignoli, Romeo Beccherelli, Alessandro Galli

Systematic Design of THz Leaky-Wave Antennas based on Homogenized Metasurfaces

IEEE Transactions on Antennas and Propagation [IEEE], Volume: 66 Issue: 3 Pages: 1169-1178

DC Zografopoulos, G Sinatkas, E Lotfi, LA Shahada, MA Swillam, EE Kriezis, R Beccherelli

Amplitude modulation in infrared metamaterial absorbers based on electro-optically tunable conducting oxides

Applied Physics A [Springer Berlin Heidelberg], Volume: 124 Issue: 2 Pages: 105

Dimitrios C Zografopoulos, Antonio Ferraro, Romeo Beccherelli

Liquid‐Crystal High‐Frequency Microwave Technology: Materials and Characterization

Advanced Materials Technologies [], Pages: 1800447

Silvia Tofani, Dimitrios C Zografopoulos, Mauro Missori, Renato Fastampa, Romeo Beccherelli

High Resolution Binary Zone Plate in Double-Sided Configuration for Terahertz Radiation Focusing

IEEE Photonics Technology Letters [IEEE], Volume: 31 Issue: 2 Pages: 117-120

KP Prokopidis, DC Zografopoulos

Generalised 3-D ADI-FDTD algorithm for the modeling of wave propagation in dispersive media

Electronics Letters [IET], Volume: 53 Issue: 18 Pages: 1242-1244

A Ferraro, DC Zografopoulos, R Caputo, R Beccherelli

Terahertz narrowband transmission filters based on guided mode resonant metallic gratings

Book of abstracts [], Pages: 136

Dimitrios C Zografopoulos, Emmanouil E Kriezis, Romeo Beccherelli

Design of switchable guided-mode resonant filters in zenithal-bistable liquid-crystal gratings

IEEE Photonics Technology Letters [IEEE], Volume: 29 Issue: 16 Pages: 1367-1370

Konstantinos Prokopidis, Dimitrios Zografopoulos

Generalized 3-D ADI-FDTD algorithm for wave propagation in dispersive media

Electronics Letters [IET Digital Library],

Antonio Ferraro, Dimitrios C Zografopoulos, Roberto Caputo, Romeo Beccherelli

Broad-and Narrow-line Terahertz Filtering in Frequency-selective Surfaces Patterned on Thin Low-loss Polymer Substrates

IEEE Journal of Selected Topics in Quantum Electronics [IEEE], Volume: 23 Issue: 4 Pages: 1-8

A Ferraro, DC Zografopoulos, R Caputo, R Beccherelli

Angle-resolved and polarization-dependent investigation of cross-shaped frequency-selective surface terahertz filters

Applied Physics Letters [AIP Publishing], Volume: 110 Issue: 14 Pages: 141107

Antonio Ferraro, Dimitrios C Zografopoulos, Roberto Caputo, Romeo Beccherelli

Terahertz polarizing component on cyclo-olefin polymer

Photonics Letters of Poland [], Volume: 9 Issue: 1 Pages: 2-4

Nourhan H Fouad, Aya O Zaki, Dimitrios C Zografopoulos, Romeo Beccherelli, Mohamed A Swillam

Low power hybrid plasmonic microring-on-disks electro-optical modulators

Journal of Nanophotonics [International Society for Optics and Photonics], Volume: 11 Issue: 1 Pages: 016014

Borislav Vasić, Dimitrios C Zografopoulos, Goran Isić, Romeo Beccherelli, Radoš Gajić

Electrically tunable terahertz polarization converter based on overcoupled metal-isolator-metal metamaterials infiltrated with liquid crystals

Nanotechnology [IOP Publishing], Volume: 28 Issue: 12 Pages: 124002

Konstantinos P Prokopidis, Dimitrios C Zografopoulos

Modeling Plasmonic Structures Using LOD-FDTD Methods With Accurate Dispersion Models of Metals at Optical Wavelengths

Journal of Lightwave Technology [IEEE], Volume: 35 Issue: 2 Pages: 193-200

Konstantinos P Prokopidis, Dimitrios C Zografopoulos

Modeling Plasmonic Structures Using LOD-FDTD Methods With Accurate Dispersion Models of Metals at Optical Wavelengths

Journal of Lightwave Technology [IEEE], Volume: 35 Issue: 2 Pages: 193-200

Georgios Sinatkas, Alexandros Pitilakis, Dimitrios C Zografopoulos, Romeo Beccherelli, Emmanouil E Kriezis

Transparent conducting oxide electro-optic modulators on silicon platforms: A comprehensive study based on the drift-diffusion semiconductor model

Journal of Applied Physics [AIP Publishing], Volume: 121 Issue: 2 Pages: 023109

SM Sherif, DC Zografopoulos, LA Shahada, Romeo Beccherelli, M Swillam

Integrated plasmonic refractometric sensor using Fano resonance

Journal of Physics D: Applied Physics [IOP Publishing], Volume: 50 Issue: 5 Pages: 055104

Walter Fuscaldo, Silvia Tofani, Dimitrios C Zografopoulos, Paolo Baccarelli, Paolo Burghignoli, Romeo Beccherelli, Alessandro Galli

Tunable Fabry-Perot Cavity THz Antenna Based on Leaky-Wave Propagation in Nematic Liquid Crystals

IEEE Antennas and Wireless Propagation Letters [IEEE], Volume: 16 Pages: 2046-2049

Dimitrios C Zografopoulos, Mohamed A Swillam, Romeo Beccherelli

Electro-optic modulators based on hybrid plasmonic micro-ring-disk resonators with femtojoule switching energy

Applied Physics A [Springer Berlin Heidelberg], Volume: 122 Issue: 12 Pages: 1039

Antonio Ferraro, Dimitrios C Zografopoulos, Roberto Caputo, Romeo Beccherelli

Periodical Elements as Low-Cost Building Blocks for Tunable Terahertz Filters

IEEE Photonics Technology Letters [IEEE], Volume: 28 Issue: 21 Pages: 2459-2462

A Ferraro, DC Zografopoulos, M Missori, M Peccianti, R Caputo, R Beccherelli

Flexible terahertz wire grid polarizer with high extinction ratio and low loss

Optics Letters [Optical Society of America], Volume: 41 Issue: 9 Pages: 2009-2012

Dimitrios C Zografopoulos, Goran Isić, Emmanouil E Kriezis, Romeo Beccherelli

A switchable circular polarizer based on zenithal bistable liquid crystal gratings

Journal of Physics D: Applied Physics [IOP Publishing], Volume: 49 Issue: 19 Pages: 195104

Konstantinos P Prokopidis, Dimitrios C Zografopoulos

Time-domain numerical scheme based on low-order partial-fraction models for the broadband study of frequency-dispersive liquid crystals

JOSA B [Optical Society of America], Volume: 33 Issue: 4 Pages: 622-629

Dimitrios C Zografopoulos, Mohamed Swillam, Romeo Beccherelli

Hybrid Plasmonic Modulators and Filters Based on Electromagnetically Induced Transparency

IEEE Photonics Technology Letters [IEEE], Volume: 28 Issue: 7 Pages: 818-821

Dimitrios C Zografopoulos, Mohamed A Swillam, Lamees A Shahada, Romeo Beccherelli

Hybrid electro-optic plasmonic modulators based on directional coupler switches

Applied Physics A [], Volume: 4 Issue: 122 Pages: 1-6

DC Zografopoulos, KP Prokopidis, S Tofani, O Chojnowska, R Dąbrowski, EE Kriezis, R Beccherelli

An ADE-FDTD Formulation for the Study of Liquid-Crystal Components in the Terahertz Spectrum

Molecular Crystals and Liquid Crystals [Taylor & Francis], Volume: 619 Issue: 1 Pages: 49-60

Dimitrios C Zografopoulos, Romeo Beccherelli

Tunable terahertz fishnet metamaterials based on thin nematic liquid crystal layers for fast switching

Scientific reports [Nature Publishing Group], Volume: 5 Pages: 13137

Goran Isić, Borislav Vasić, Dimitrios C Zografopoulos, Romeo Beccherelli, Radoš Gajić

Electrically Tunable Critically Coupled Terahertz Metamaterial Absorber Based on Nematic Liquid Crystals

Physical Review Applied [American Physical Society], Volume: 3 Issue: 6 Pages: 064007

Konstantinos P Prokopidis, Dimitrios C Zografopoulos

Authors' Reply to “On the Equivalence of the Stability of the DE and JE ADE-FDTD Schemes for Implementing the Modified Lorentz Dispersive Model”

IEEE Microwave and Wireless Components Letters [IEEE], Volume: 25 Issue: 7 Pages: 489-489

Romeo Beccherelli, Dimitrios C Zografopoulos

Tunable terahertz fishnet metamaterials based on thin nematic liquid crystal layers for fast switching

Sci. Rep. [Nature Publishing Group], Volume: 5 Issue: 1

Dimitrios C Zografopoulos, Konstantinos P Prokopidis

Transparent nanoprobes in integrated plasmonic circuits based on plasmonic cloaking

Physical Review Applied [American Physical Society], Volume: 2 Issue: 6 Pages: 064009

Dimitrios C Zografopoulos, Romeo Beccherelli, Emmanouil E Kriezis

Beam-splitter switches based on zenithal bistable liquid-crystal gratings

Physical Review E [American Physical Society], Volume: 90 Issue: 4 Pages: 042503

Dimitrios C Zografopoulos, Emmanouil E Kriezis

Switchable beam steering with zenithal bistable liquid-crystal blazed gratings

Optics letters [Optical Society of America], Volume: 39 Issue: 20 Pages: 5842-5845

Konstantinos P Prokopidis, Dimitrios C Zografopoulos

An ADI-FDTD Formulation With Modified Lorentz Dispersion for the Study of Plasmonic Structures

IEEE Photonics Technology Letters [IEEE], Volume: 26 Issue: 22 Pages: 2267-2270

Konstantinos P Prokopidis, Dimitrios C Zografopoulos

Investigation of the stability of ADE-FDTD methods for modified Lorentz media

IEEE Microwave and Wireless Components Letters [IEEE], Volume: 24 Issue: 10 Pages: 659-661

DC Zografopoulos, KP Prokopidis, R Dabrowski, R Beccherelli

Time-domain modeling of dispersive and lossy liquid-crystals for terahertz applications

Optical Materials Express [],

Konstantinos P Prokopidis, Dimitrios C Zografopoulos, Emmanouil E Kriezis

Rigorous broadband investigation of liquid-crystal plasmonic structures using finite-difference time-domain dispersive-anisotropic models

JOSA B [Optical Society of America], Volume: 30 Issue: 10 Pages: 2722-2730

Dimitrios C Zografopoulos, Alexandros K Pitilakis, Emmanouil E Kriezis

Dual-band electro-optic polarization switch based on dual-core liquid-crystal photonic crystal fibers

Applied optics [Optical Society of America], Volume: 52 Issue: 26 Pages: 6439-6444

Konstantinos P Prokopidis, Dimitrios C Zografopoulos

A unified FDTD/PML scheme based on critical points for accurate studies of plasmonic structures

Journal of Lightwave Technology [IEEE], Volume: 31 Issue: 15 Pages: 2467-2476

KP Prokopidis, DC Zografopoulos

Efficient FDTD algorithms for dispersive Drude-critical points media based on bilinear z-transform

Electronics Letters [IET], Volume: 49 Issue: 8 Pages: 534-536

Dimitrios C Zografopoulos, Romeo Beccherelli

Plasmonic variable optical attenuator based on liquid-crystal tunable stripe waveguides

Plasmonics [Springer US], Volume: 8 Issue: 2 Pages: 599-604

Dimitrios C Zografopoulos, Romeo Beccherelli

Liquid-crystal tunable long-range surface plasmon polariton directional coupler

Molecular Crystals and Liquid Crystals [Taylor & Francis Group], Volume: 573 Issue: 1 Pages: 70-76

Dimitrios C Zografopoulos, Romeo Beccherelli

Liquid-crystal-tunable metal–insulator–metal plasmonic waveguides and Bragg resonators

Journal of Optics [IOP Publishing], Volume: 15 Issue: 5 Pages: 055009

DC Zografopoulos, R Beccherelli

Long-range plasmonic directional coupler switches controlled by nematic liquid crystals

Optics express [Optical Society of America], Volume: 21 Issue: 7 Pages: 8240-8250

Dimitrios C Zografopoulos, Romeo Beccherelli

Design of a vertically coupled liquid-crystal long-range plasmonic optical switch

Applied Physics Letters [AIP Publishing], Volume: 102 Issue: 10 Pages: 101103

Dimitrios C Zografopoulos, Romeo Beccherelli, Anna C Tasolamprou, Emmanouil E Kriezis

Liquid–crystal tunable waveguides for integrated plasmonic components

Photonics and Nanostructures-Fundamentals and Applications [Elsevier], Volume: 11 Issue: 1 Pages: 73-84

Odysseas Tsilipakos, Dimitrios C Zografopoulos, Emmanouil E Kriezis

Quasi-soliton pulse-train propagation in dispersion-managed silicon rib waveguides

IEEE Photonics Technology Letters [IEEE], Volume: 25 Issue: 8 Pages: 724-727

Dimitrios C Zografopoulos, Romeo Beccherelli, Emmanouil E Kriezis

Quasi-soliton propagation in dispersion-engineered silicon nanowires

Optics communications [North-Holland], Volume: 285 Issue: 15 Pages: 3306-3311

Dimitrios C Zografopoulos, Rita Asquini, Emmanouil E Kriezis, Antonio d'Alessandro, Romeo Beccherelli

Guided-wave liquid-crystal photonics

Lab on a Chip [Royal Society of Chemistry], Volume: 12 Issue: 19 Pages: 3598-3610

AC Tasolamprou, DC Zografopoulos, EE Kriezis

Liquid crystal-based dielectric loaded surface plasmon polariton optical switches

Journal of Applied Physics [AIP], Volume: 110 Issue: 9 Pages: 093102

DC Zografopoulos, C Vázquez, EE Kriezis, TV Yioultsis

Dual-core photonic crystal fibers for tunable polarization mode dispersion compensation

Optics express [Optical Society of America], Volume: 19 Issue: 22 Pages: 21680-21691

Alexandros K Pitilakis, Dimitrios C Zografopoulos, Emmanouil E Kriezis

In-line polarization controller based on liquid-crystal photonic crystal fibers

Journal of Lightwave Technology [IEEE], Volume: 29 Issue: 17 Pages: 2560-2569

AC Tasolamprou, Bob Bellini, Dimitrios C Zografopoulos, Emmanouil E Kriezis, Romeo Beccherelli

Tunable optical properties of silicon-on-insulator photonic crystal slab structures

Journal of the European Optical Society-Rapid publications [], Volume: 4

Dimitrios C Zografopoulos, Emmanouil E Kriezis

Tunable polarization properties of hybrid-guiding liquid-crystal photonic crystal fibers

Journal of Lightwave Technology [IEEE], Volume: 27 Issue: 6 Pages: 773-779

AC Tasolamprou, M Mitov, DC Zografopoulos, EE Kriezis

Theoretical and experimental studies of hyperreflective polymer-network cholesteric liquid crystal structures with helicity inversion

Optics Communications [North-Holland], Volume: 282 Issue: 5 Pages: 903-907

Dimitrios C Zografopoulos, Emmanouil E Kriezis

Tunable optical fiber polarization elements based on long-period gratings inscribed in birefringent microstructured fibers

JOSA B [Optical Society of America], Volume: 25 Issue: 1 Pages: 111-118

Dimitrios C Zografopoulos, Emmanouil E Kriezis, Bob Bellini, Romeo Beccherelli

Tunable one-dimensional photonic crystal slabs based on preferential etching of silicon-on-insulator

Optics express [Optical Society of America], Volume: 15 Issue: 4 Pages: 1832-1844

R Beccherelli, B Bellini, D Zografopoulos, E Kriezis

Tunable one-dimensional photonic crystal slabs (Invited Paper)[6593-15]

PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING [International Society for Optical Engineering; 1999], Volume: 6593 Pages: 6593

R Beccherelli, B Bellini, D Zografopoulos, E Kriezis

Tunable one-dimensional photonic crystal slabs (Invited Paper)[6593-15]

PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING [International Society for Optical Engineering; 1999], Volume: 6593 Pages: 6593

Dimitrios C Zografopoulos, Emmanouil E Kriezis, Theodoros D Tsiboukis

Tunable highly birefringent bandgap-guiding liquid-crystal microstructured fibers

Journal of lightwave technology [IEEE], Volume: 24 Issue: 9 Pages: 3427

Dimitrios C Zografopoulos, Emmanouil E Kriezis, Michel Mitov, Corinne Binet

Theoretical and experimental optical studies of cholesteric liquid crystal films with thermally induced pitch gradients

Physical Review E [American Physical Society], Volume: 73 Issue: 6 Pages: 061701

DC Zografopoulos, Em E Kriezis, TD Tsiboukis

Photonic crystal-liquid crystal fibers for single-polarization or high-birefringence guidance

Optics express [Optical Society of America], Volume: 14 Issue: 2 Pages: 914-925

JF Algorri, DC Zografopoulos, A Ferraro, Pedro Martín-Mateos, B García-Cámara, Aldo Moreno-Oyervides, Viktor Krozer, Pablo Acedo, R Beccherelli, JM Sánchez-Pena, R Vergaz

All-Dielectric Metasurfaces with Toroidal Multipole Resonances at sub-THz

2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) [IEEE], Pages: X-020-X-022

DC Zografopoulos, JF Algorri, A Ferraro, B García-Cámara, JM Sánchez-Pena, R Beccherelli

Microwave waveguides loaded with dielectric metasurfaces

2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) [IEEE], Pages: X-498-X-500

JF Algorri, D Zografopoulos, A Ferraro, B Garcia-Camara, R Vergaz, R Beccherelli, JM Sanchez-Pena

Ultra-high-Q dielectric metasurface for polarization conversion

Metamaterials, Metadevices, and Metasystems 2019 [International Society for Optics and Photonics], Volume: 11080 Pages: 110802O

A Ferraro, AA Tanga, DC Zografopoulos, GC Messina, M Ortolani, R Beccherelli

Terahertz filter with flat-top transmission response

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) [IEEE], Pages: 1-2

JF Algorri, N Bennis, DC Zografopoulos, V Urruchi, P Morawiak, L Jaroszewicz, JM Sánchez-Pena

Liquid Crystal Tunable Beam Steering for Free-Space Optical Communications

Photonic Networks and Devices [Optical Society of America], Pages: NeM2D. 3

JF Algorri, DC Zografopoulos, A Ferraro, V Urruchi, R Beccherelli, JM Sancehz-Pena

Liquid Crystal Active Metasurface for Ultra-Selective Wavelength Switching

Novel Optical Materials and Applications [Optical Society of America], Pages: NoW3B. 5

Goran Isić, Georgios Sinatkas, Dimitrios C Zografopoulos, Borislav Vasić, Antonio Ferraro, Romeo Beccherelli, Emmanouil E Kriezis, Milivoj Belić

Terahertz Modulation by Schottky Junction in Metal-Semiconductor-Metal Microcavities

2019 21st International Conference on Transparent Optical Networks (ICTON) [IEEE], Pages: 1-4

Silvia Tofani, Walter Fuscaldo, Dimitrios C Zografopoulos, Paolo Burghignoli, Paolo Baccarelli, Romeo Beccherelli, Alessandro Galli

Design-flow of Fabry-Perot cavity leaky-wave antennas based on homogenized metasurfaces

2019 13th European Conference on Antennas and Propagation (EuCAP) [IEEE], Pages: 1-4

DC Zografopoulos, G Isic, B Vasic, A Ferraro, G Sinatkas, EE Kriezis, R Gajic, R Beccherelli

Electrically tunable solid-state terahertz metamaterial absorbers

2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) [IEEE], Pages: 471-473

Antonio Ferraro, Dimitrios C Zografopoulos, Roberto Caputo, Romeo Beccherelli

Terahertz guided-mode resonant filtering components

20th Italian National Conference on Photonic Technologies (Fotonica 2018) [IET], Pages: 1-3

Dimitrios C Zografopoulos, Emmanouil E Kriezis, Romeo Beccherelli

Switchable photonic components based on zenithal-bistable nematic liquid crystal gratings

Photonics Conference (IPC), 2017 IEEE [IEEE], Pages: 597-598

Antonio Ferraro, Roberto Caputo, Dimitrios C Zografopoulos, Romeo Beccherelli

Terahertz frequency-selective surface and guided-mode resonance filters

Photonics Conference (IPC), 2017 IEEE [IEEE], Pages: 557-558

NH Fouad, AO Zaki, DC Zografopoulos, LA Shahada, R Beccherelli, MA Swillam

Hybrid plamonic conductor-gap-silicon microring-on-disks electro-optic modulator

Applied Computational Electromagnetics Society Symposium-Italy (ACES), 2017 International [IEEE], Pages: 1-2

Walter Fuscaldo, Silvia Tofani, Dimitrios C Zografopoulos, Paolo Baccarelli, Paolo Burghignoli, Romeo Beccherelli, Alessandro Galli

A reconfigurable multilayered THz leaky-wave antenna employing liquid crystals

Antennas and Propagation (EUCAP), 2017 11th European Conference on [IEEE], Pages: 849-851

DC Zografopoulos, A Ferraro, G Isic, B Vasic, R Gajic, R Beccherelli

Tunable terahertz metamaterials based on nematic liquid crystals

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference on [IEEE], Pages: 1-2

Antonio Ferraro, Dimitrios C Zografopoulos, Roberto Caputo, Romeo Beccherelli

Mechanically tunable Bragg filters for terahertz applications

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference on [IEEE], Pages: 1-2

Silvia Tofani, Dimitrios C Zografopoulos, Mauro Missori, Romeo Beccherelli

Polymeric zone plates for THz focusing

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference on [IEEE], Pages: 1-2

A Ferraro, DC Zografopoulos, M Missori, M Peccianti, R Caputo, R Beccherelli

Terahertz polarizer on flexible and conformal substrate

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference on [IEEE], Pages: 1-2

Konstantinos P Prokopidis, Dimitrios C Zografopoulos, Christos Kalialakis, Apostolos Georgiadis

Improved propagation modeling in ultra-wideband indoor communication systems utilizing vector fitting technique of the dielectric properties of building materials

2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) [IEEE], Pages: 1-6

Sherif Elsayed, Lamees Shahada, Dimitrios Zografopoulos, Romeo Beccherelli, Mohamed Swillam

Plasmonic Modulator Based on Fano Resonance

Qatar Foundation Annual Research Conference Proceedings Volume 2016 Issue 1 [Hamad bin Khalifa University Press (HBKU Press)], Volume: 2016 Issue: 1 Pages: ICTPP3082

SM Sherif, L Shahada, DC Zografopoulos, R Beccherelli, M Swillam

Near infrared plasmonic sensor based on fano resonance

Integrated Optics: Devices, Materials, and Technologies XX [International Society for Optics and Photonics], Volume: 9750 Pages: 97500F

Aya O Zaki, Nourhan H Fouad, Dimitrios C Zografopoulos, Romeo Beccherelli, Mohamed A Swillam

Low-power compact hybrid plasmonic double-microring electro-optical modulator

Optical Components and Materials XIII [International Society for Optics and Photonics], Volume: 9744 Pages: 97441K

DC Zografopoulos, MA Swillam, L Shehada, R Beccherelli

Hybrid electro-optical plasmonic modulators and switches for integrated optical signal processing

the 6th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META’15 [],

DC Zografopoulos, MA Swillam, L Shehada, R Beccherelli

Hybrid electro-optical plasmonic modulators and switches for integrated optical signal processing

the 6th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META’15 [],

Dimitrios C Zografopoulos, Romeo Beccherelli

Liquid-crystal tunable fishnet terahertz metamaterials

2014 Fotonica AEIT Italian Conference on Photonics Technologies [IEEE], Pages: 1-4

DC Zografopoulos, R Beccherelli

Liquid-crystal tunable plasmonic stripe directional coupler switches

Integrated Photonics: Materials, Devices, and Applications II [International Society for Optics and Photonics], Volume: 8767 Pages: 876712

Odysseas Tsilipakos, Dimitrios C Zografopoulos, Emmanouil E Kriezis

Soliton-like propagation in dispersion-managed silicon nanowaveguides

The European Conference on Lasers and Electro-Optics [Optical Society of America], Pages: CD_P_14

Romeo Beccherelli, Dimitrios C Zografopoulos

Tunable liquid-crystal long-range plasmonic stripe waveguides

EOS Annual Meeting (EOSAM 2012) [European Optical Society], Pages: TOM3_5854_031

Romeo Beccherelli, Dimitrios C Zografopoulos

Long-range plasmonic waveguides controlled by nematic liquid crystals

IEEE Photonics Conference 2012 [IEEE], Pages: 684-685

Dimitrios C Zografopoulos, Romeo Beccherelli, Emmanouil E Kriezis

Quasi-soliton formation in silicon nanowires with engineered dispersion profile

EOS Annual Meeting (EOSAM 2012) [European Optical Society], Volume: 6 Issue: 6 Pages: TOM6_5853_012

Dimitrios C Zografopoulos, Emmanouil E Kriezis

Polarization properties of liquid-crystal infiltrated photonic crystal fibers

2008 10th Anniversary International Conference on Transparent Optical Networks [IEEE], Volume: 2 Pages: 12-16

Romeo Beccherelli, Bob Bellini, Dimitrios C Zografopoulos, Anna Tasolamprou, Emmanouil E Kriezis

Sensore fotonico ultracompatto basato su cristallo fotonico di silicio

10º Convegno Nazionale “Strumentazione e metodi di misura elettroottici” Elettrottica 2008 [AEIT],

Romeo Beccherelli, Bob Bellini, Dimitrios C Zografopoulos, Emmanouil E Kriezis

Lamina a band gap fotonico unidimensionale sintonizzabile basata su microlavorazione del silicio

Fotonica 2007 [AEIT], Pages: 437-441

Dimitrios C Zografopoulos, Emmanouil E Kriezis

Polarisation-maintaining and highly-briefringent liquid-crystal photonic crystal fibers

2006 International Conference on Transparent Optical Networks [IEEE], Volume: 4 Pages: 255-255

Dimitrios C Zografopoulos, Romeo Beccherelli

Tunability of Plasmonic Devices

Nano-Structures for Optics and Photonics [Springer Netherlands], Pages: 187-207

DC Zografopoulos, A Pitilakis, Em E Kriezis

Liquid crystal-infiltrated photonic crystal fibres for switching applications

Optofluidics, Sensors and Actuators in Microstructured Optical Fibers [Woodhead Publishing], Pages: 55-83