### Research Interest

Photonics, Metamaterials, Graphene, Inverse Design, Quantum Engineering

**Constantinos** (Costas)** Valagiannopoulos** is an Associate Professor in the Department of Physics of Nazarbayev University (NU), Kazakhstan since August 2015, when he joined NU as an Assistant Professor. He leads the Metamaterials Modeling and Design Group at NU, performing research on the forward and inverse design of photonic devices manipulating the light as well as on the translation of electromagnetic concepts into quantum systems. He has authored or coauthored more than **100** works published at international refereed scientific journals (Scopus Q1) and presented numerous reports in scientific conferences. He is currently participating as Principal Investigator (PI) or co-PI in the successful execution of national and international research grants of total annual budget larger than **600K USD**.

He obtained his Degree in Electrical and Computer Engineering (1999-2004) with honors and pursued his PhD (2004-2009) in Electromagnetic Theory at the National Technical University of Athens (NTUA), Greece. He then (2010-2014) joined Aalto University, Finland as a member of Theoretical and Applied Electromagnetics of Complex Media group (AaltoReference, Advisor: Sergei Tretyakov), while later he was with the Metamaterials and Plasmonics Laboratory (AustinReference, Advisor: Andrea Alu) to University of Texas at Austin, USA (2014-2015). During the last two years (2015-2017), he has done internships to Harvard University (HarvardReference) and University of Southampton (SouthamptonReference).

In April 2018, he was elected OSA Senior Member, in May 2017 and 2018 received OSA’s reviewer recognition, in April 2016 was elevated to IEEE Senior Member, while in December of 2015 he received the Journal of Optics Research Excellence Award 2015. In May of 2008 he received the International Chorafas Award and the competitive Thomaides Award for the Best Doctoral Thesis. He was a Guest Editor for MDPI Photonics for the special issue including selected papers presented at 2019 Metamaterials Congress. He has won a Newton Al-Farabi Researcher Links Travel Grant for 2017 and he is the winner of the 2020 NU Teaching Award for Integrating Research and Teaching.

Basins of attraction in asymmetric photonic couplers

Constantinos Valagiannopoulos, Yertay Zhiyenbayev, Yannis Kominis, Vassilios Kovanis, **2019** In : Proceedings of the 2019 21st International Conference on Electromagnetics in Advanced Applications, ICEAA 2019, p. 338-341

Revisiting beamforming under the prism of inverse methods

Constantinos Valagiannopoulos, Vassilios Kovanis, **2019** In : Physics and Simulation of Optoelectronic Devices XXVII

Achieving Anomalous Refraction with Metasurfaces Composed by Two Ordinary Dielectric Materials

N. L. Tsitsas, C. A. Valagiannopoulos, **2018** In : 2018 12th International Congress on Artificial Materials for Novel Wave Phenomena, METAMATERIALS 2018, p. 395-397

Nonlinear waves in hyperbolic metamaterials: Focus on solitons and rogues

A. D. Boardman, V. V. Grimalsky, T. Guo, B. Kibler, J. McNiff, I. Nefedov, Y. Rapoport, C. Argyropoulos, C. Valagiannopoulos, **2018** In : Metamaterials XI10671

On self-oscillating wireless power transfer

Sergei Tretyakov, Constantinos Valagiannopoulos, Younes Ra'Di, Constantin Simovski, **2018** In : 2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 20172017-November, p. 1-3

Optimized Operation of Photonic Devices with Use of Ordinary Bulk Materials

Constantinos Valagiannopoulos, **2018** In : 2018 12th International Congress on Artificial Materials for Novel Wave Phenomena, METAMATERIALS 2018, p. 495-497

Mitigating Snell's-Law reflection and transmission with metasurfaces of ordinary dielectrics

N. L. Tsitsas, C. A. Valagiannopoulos, **2017** In : Proceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017, p. 1160-1163

Analytical investigations of ground modifications assisting the detection of a buried object

Constantinos A. Valagiannopoulos, Nikolaos L. Tsitsas, Ari H. Sihvola, **2016** In : 2016 URSI International Symposium on Electromagnetic Theory, EMTS 2016, p. 783-786

Conjugately-matched uniaxial metamaterials make extremely efficient absorbers, emitters, and reflectors

C. A. Valagiannopoulos, C. R. Simovski, S. A. Tretyakov, **2016** In : 2016 10th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2016, p. 379-381

Guessing the texture of magnetic samples assisted by Aharonov-Bohm effect

C. A. Valagiannopoulos, A. Alù, A. Dimakis, E. A. Marengo, **2016** In : 2016 10th European Conference on Antennas and Propagation, EuCAP 2016

Radiation-enhancing reflector

C. A. Valagiannopoulos, S. A. Tretyakov, **2016** In : 2016 10th European Conference on Antennas and Propagation, EuCAP 2016

Aberration-free planar focusing based on parity-time symmetric nonlocal metamaterials

Francesco Monticone, Andrea Alu, Constantinos A. Valagiannopoulos, **2015** In : 2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings, p. 252-253

Amplifying the response of a buried object by depositing a passive layer on the ground

Constantinos A. Valagiannopoulos, Nikolaos L. Tsitsas, Ari H. Sihvola, **2015** In : 2015 Computational Electromagnetics International Workshop, CEM 2015, p. 28-29

Blacker than ideally black: Double negative conjugately matched cylinders

J. Vehmas, C. Valagiannopoulos, S. Tretyakov, S. Maslovski, **2015** In : 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015, p. 511-513

Cloaking a bump inside a single isotropic lossless dielectric

Constantinos A. Valagiannopoulos, Nikolaos L. Tsitsas, Ari H. Sihvola, **2015** In : 2015 9th European Conference on Antennas and Propagation, EuCAP 2015

Excitation of a grounded lossy dielectric slab by an external complex source point beam

Nikolaos L. Tsitsas, Constantinos A. Valagiannopoulos, **2015** In : 2015 9th European Conference on Antennas and Propagation, EuCAP 2015

PT-symmetric metamaterial systems for aberration-free imaging and wave manipulation

F. Monticone, C. Valagiannopoulos, S. Savoia, R. Fleury, A. Alu, **2015** In : 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015, p. 223-225

A grating from coated PEC cylinders functioning as an electromagnetic absorber

Constantinos A. Valagiannopoulos, Sergei A. Tretyakov, **2013** In : 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings, p. 1986-1987

Approximating the mechanism of perfect electromagnetic boundaries by using magneto-dielectric materials

C. A. Valagiannopoulos, A. H. Sihvola, **2013** In : Proceedings of the 2013 International Conference on Electromagnetics in Advanced Applications, ICEAA 2013, p. 1036-1039

Computationally efficient optimization of coupling tapers for transmission-line networks under obliquely incident illumination

Constantinos A. Valagiannopoulos, Pekka Alitalo, **2013** In : 2013 IEEE Antennas and Propagation Society International Symposium, APSURSI 2013 - Proceedings, p. 420-421

Concealing a perfectly conducting object with edges inside a dielectric superstrate

C. A. Valagiannopoulos, N. L. Tsitsas, **2013** In : Proceedings of the 2013 International Conference on Electromagnetics in Advanced Applications, ICEAA 2013, p. 1269-1272

Low interaction of an arbitrarily large PEC cylinder with em waves filtered through a layered structure

Constantinos A. Valagiannopoulos, **2013** In : 2013 7th European Conference on Antennas and Propagation, EuCAP 2013, p. 2238-2242

On enhancing the field in the vicinity of a metamaterial wedge with use of an auxiliary dielectric tip

Constantinos A. Valagiannopoulos, Ari Sihvola, **2013** In : 2013 7th European Conference on Antennas and Propagation, EuCAP 2013, p. 3452-3456

Optimal directional pattern design utilizing arbitrary microphone arrays: A continuous-wave approach

Symeon Delikaris-Manias, Constantinos A. Valagiannopoulos, Ville Pulkki, **2013** In : 134th Audio Engineering Society Convention 2013, p. 1-10

A Cartesian cloaking comprised of gradually sparser dielectric layers exploiting Snell's law

Constantinos A. Valagiannopoulos, **2012** In : Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012, p. 2688-2692

Cloaking a microstrip antenna: Integral equation modeling

C. A. Valagiannopoulos, N. L. Tsitsas, **2012** In : Proceedings of the 2012 International Conference on Electromagnetics in Advanced Applications, ICEAA'12, p. 383-386

Concentrating the electromagnetic power in a grounded dielectric slab excited by an external Gaussian beam

N. L. Tsitsas, C. A. Valagiannopoulos, **2012** In : Proceedings of the 14th International Conference on Mathematical Methods in Electromagnetic Theory, MMET 2012, p. 304-307

Dielectric-coated PEC cylinders which do not scatter electromagnetic waves

C. A. Valagiannopoulos, P. Alitalo, S. Tretyakov, **2012** In : Proceedings of the 2012 International Conference on Electromagnetics in Advanced Applications, ICEAA'12, p. 90-91

Efficient evaluation of the Green's function for a bended coplanar waveguide

Constantinos A. Valagiannopoulos, **2012** In : Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012, p. 2191-2195

Electromagnetic cloaking of PEC cylinders with a single isotropic and homogeneous layer

Constantinos A. Valagiannopoulos, Pekka Alitalo, **2012** In : 2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings

The influence of refractive index, excitation and observation on PEC/PMC boundary realization

Constantinos A. Valagiannopoulos, Ari H. Sihvola, **2012** In : 2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings

Analytical model for coupling of waves between a homogeneous medium and a volumetric transmission-line network

Constantinos A. Valagiannopoulos, Pekka Alitalo, Sergei A. Tretyakov, **2011** In : 2011 IEEE International Symposium on Antennas and Propagation - Proceedings, p. 2597-2600

Conversion of evanescent waves into propagating modes by passing through a metamaterial prism: An iterative approximation method

Constantinos A. Valagiannopoulos, Constantin R. Simovski, **2011** In : Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011, p. 95-99

On adjusting the characteristics of a low-index slab antenna with a finite set of metallic pins

Constantinos A. Valagiannopoulos, **2011** In : Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011, p. 913-917

Simple cloak for antenna blockage reduction

Pekka Alitalo, Constantinos A. Valagiannopoulos, Sergei A. Tretyakov, **2011** In : 2011 IEEE International Symposium on Antennas and Propagation - Proceedings, p. 669-672

Convergence and oscillations in method-of-auxiliary-sources analyses of dielectric scattering problems

C. A. Valagiannopoulos, N. L. Tsitsas, G. Fikioris, **2010** In : Proceedings - 2010 12th International Conference on Electromagnetics in Advanced Applications, ICEAA'10, p. 665-668

Electromagnetic wave scattering by quasi-homogeneous obstacles

N. L. Tsitsas, C. A. Valagiannopoulos, **2010** In : Proceedings of the 9th International Workshop on Mathematical Methods in Scattering Theory and Biomedical Engineering, p. 169-176

Complex resonant frequencies of multi-layered spherical microstrip antennas

C. A. Valagiannopoulos, N. L. Tsitsas, **2008** In : Conference Proceedings - The 12th International Conference on Mathematical Methods in Electromagnetic Theory, MMET 08, p. 213-215

Analytical Inverse Design of Polarization-Insensitive Photonic Filters by Tailoring Fabry-Perot Interference

Constantinos Valagiannopoulos, **2020** In : . 8 , p. 141641-141647

New Self-Organization Route to Tunable Narrowband Optical Filters and Polarizers Demonstrated with ZnO–ZnWO_{4} Eutectic Composite

Paweł Osewski, Alessandro Belardini, Marco Centini, Constantinos Valagiannopoulos, Grigore Leahu, Roberto Li Voti, Monika Tomczyk, Andrea Alù, Dorota A. Pawlak, Concita Sibilia, **2020** In : . 8 , p.7

Optimally Sharp Energy Filtering of Quantum Particles via Homogeneous Planar Inclusions

Constantinos Valagiannopoulos, **2020** In : . 10 , p.1

Perfect quantum cloaking of tilted cylindrical nanocavities

Constantinos Valagiannopoulos, **2020** In : . 101 , p.19

Uniaxial films of maximally controllable response under visible light

Dias Tulegenov, Constantinos Valagiannopoulos, **2020** In : . 10 , p.1

Classical and quantum dispersion-free coherent propagation by tailoring multimodal coupling

Aikaterini Mandilara, Constantinos Valagiannopoulos, Vladimir M. Akulin, **2019** In : . 99 , p.2

Core-shell nanospheres under visible light

Arsen Sheverdin, Constantinos Valagiannopoulos, **2019** In : . 99 , p.7

Enhanced stability, bistability, and exceptional points in saturable active photonic couplers

Yertay Zhiyenbayev, Yannis Kominis, Constantinos Valagiannopoulos, Vassilios Kovanis, Anastasios Bountis, **2019** In : . 100 , p.4

Excitation of guided waves on a lossless dielectric slab by an E-polarized complex source point beam

Nikolaos L. Tsitsas, Constantinos Valagiannopoulos, Alexander I. Nosich, **2019** In : . 67 , p.8 , p. 5532-5543

Limits for Absorption and Scattering by Core-Shell Nanowires in the Visible Spectrum

Aivar Abrashuly, Constantinos Valagiannopoulos, **2019** In : . 11 , p.1

Maximal quantum scattering by homogeneous spherical inclusions

Constantinos Valagiannopoulos, **2019** In : . 100 , p.3

Metasurface-enabled interference mitigation in visible light communication architectures

Constantinos Valagiannopoulos, Theodoros A. Tsiftsis, Vassilios Kovanis, **2019** In : . 21 , p.11

Photonic inverse design of simple particles with realistic losses in the visible frequency range

Constantinos Valagiannopoulos, **2019** In : . 6 , p.1

Quantum Fabry-Perot Resonator

Constantinos Valagiannopoulos, **2019** In : . 12 , p.5

Robust polarization twist by pairs of multilayers with tilted optical axes

Adilkhan Sarsen, Constantinos Valagiannopoulos, **2019** In : . 99 , p.11

Aharonov-Bohm-inspired tomographic imaging via compressive sensing

Constantinos Valagiannopoulos, Edwin A. Marengo, Alexandros G. Dimakis, Andrea Alù, **2018** In : . 12 , p.12 , p. 1890-1894

Engineering the emission of laser arrays to nullify the jamming from passive obstacles

Constantinos Valagiannopoulos, Vassilios Kovanis, **2018** In : . 6 , p.8 , p. A43-A50

Highly selective transmission and absorption from metasurfaces of periodically corrugated cylindrical particles

Zhenisbek Tagay, Constantinos Valagiannopoulos, **2018** In : . 98 , p.11

Lateral radiative forces exerted by evanescent fields along a hyperbolic metamaterial slab

I. S. Nefedov, C. A. Valagiannopoulos, A. S. Shalin, **2018** In : . 1092

On-Site Wireless Power Generation

Y. Ra'di, B. Chowkwale, C. A. Valagiannopoulos, F. Liu, A. Alu, C. R. Simovski, S. A. Tretyakov, **2018** In : .

Photonic crystals for optimal color conversion in light-emitting diodes: A semi-analytical approach

Constantinos Valagiannopoulos, Pavlos G. Lagoudakis, **2018** In : . 35 , p.5 , p. 1105-1112

Zeeman gyrotropic scatterers

Constantinos Valagiannopoulos, S. Ali Hassani Gangaraj, Francesco Monticone, **2018** In : . 8

Anomalous reflection of visible light by all-dielectric gradient metasurfaces [Invited]

Nikolaos L. Tsitsas, Constantinos A. Valagiannopoulos, **2017** In : . 34 , p.7 , p. D1-D8

Breaking the black-body limit with resonant surfaces

Constantinos A. Valagiannopoulos, Constantin R. Simovski, Sergei A. Tretyakov, **2017** In : . 4

Giant enhancement of the controllable in-plane anisotropy of biased isotropic noncentrosymmetric materials with epsilon-negative multilayers

C. A. Valagiannopoulos, N. L. Tsitsas, A. Lakhtakia, **2017** In : . 121 , p.6

Judicious distribution of laser emitters to shape the desired far-field patterns

Constantinos A. Valagiannopoulos, Vassilios Kovanis, **2017** In : . 95 , p.6

Magnified imaging based on non-Hermitian nonlocal cylindrical metasurfaces

Silvio Savoia, Constantinos A. Valagiannopoulos, Francesco Monticone, Giuseppe Castaldi, Vincenzo Galdi, Andrea Alù, **2017** In : . 95 , p.11

Manipulating polarized light with a planar slab of black phosphorus

Constantinos A. Valagiannopoulos, Marios Mattheakis, Sharmila N. Shirodkar, Efthimios Kaxiras, **2017** In : . 1 , p.4

Waves in hyperbolic and double negative metamaterials including rogues and solitons

A. D. Boardman, A. Alberucci, G. Assanto, V. V. Grimalsky, B. Kibler, J. McNiff, I. S. Nefedov, Yu G. Rapoport, C. A. Valagiannopoulos, **2017** In : . 28 , p.44

Wide-angle absorption of visible light from simple bilayers

Athanasios N. Papadimopoulos, Nikolaos V. Kantartzis, Nikolaos L. Tsitsas, Constantinos A. Valagiannopoulos, **2017** In : . 56 , p.35

Consistent Integral Equation Modeling of Cloaking Planar Microstrip Antennas

Athanasios N. Papadimopoulos, Nikolaos L. Tsitsas, Constantinos A. Valagiannopoulos, Nikolaos V. Kantartzis, Christos S. Antonopoulos, Theodoros D. Tsiboukis, **2016** In : . 52 , p.3

Epsilon-near-zero behavior from plasmonic Dirac point

Marios Mattheakis, Constantinos A. Valagiannopoulos, Efthimios Kaxiras, **2016** In : . 94 , p.20

Optical PT-Symmetric Counterparts of Ordinary Metals

Constantinos A. Valagiannopoulos, **2016** In : . 22 , p.5 , p. 89-97

Parity-time Symmetric nonlocal metasurfaces

Francesco Monticone, Constantinos A. Valagiannopoulos, Andrea Alù, **2016** In : . 6 , p.4

PT-symmetric planar devices for field transformation and imaging

C. A. Valagiannopoulos, F. Monticone, A. Alù, **2016** In : . 18 , p.4

Theoretical concepts of unlimited-power reflectors, absorbers, and emitters with conjugately matched layers

Constantinos A. Valagiannopoulos, Sergei A. Tretyakov, **2016** In : . 94 , p.12

'Unlocking' the Ground

Constantinos A. Valagiannopoulos, Nikolaos L. Tsitsas, Ari H. Sihvola, **2016** In : . 54 , p.6 , p. 3697-3706

Aharonov-Bohm detection of two-dimensional magnetostatic cloaks

Constantinos A. Valagiannopoulos, Amir Nader Askarpour, Andrea Alù, **2015** In : . 92 , p.22

Controlling Reflection and Transmission with a Single Layer

Constantinos A. Valagiannopoulos, **2015** In : . 57 , p.2 , p. 318-323

Electromagnetic energy sink

C. A. Valagiannopoulos, J. Vehmas, C. R. Simovski, S. A. Tretyakov, S. I. Maslovski, **2015** In : . 92 , p.24

Perfect magnetic mirror and simple perfect absorber in the visible spectrum

C. A. Valagiannopoulos, A. Tukiainen, T. Aho, T. Niemi, M. Guina, S. A. Tretyakov, C. R. Simovski, **2015** In : . 91 , p.11

Pockels cover for switchable control of the reflection from a grounded, isotropic, lossy dielectric slab

C. A. Valagiannopoulos, N. L. Tsitsas, A. Lakhtakia, A. Burger, **2015** In : . 117 , p.8

The Role of Reactive Energy in the Radiation by a Dipole Antenna

Constantinos A. Valagiannopoulos, Andrea Alu, **2015** In : . 63 , p.8 , p. 3736-3741

Demand curves and operator strategies in the finnish mobile broadband market

Michail Katsigiannis, Constantinos Valagiannopoulos, **2014** In : . 10 , p.1 , p. 30-46

Emulating hyperbolic-media properties with conventional structures

Constantinos A. Valagiannopoulos, Sergei A. Tretyakov, **2014** In : . 16

Hiding a bump on a PEC plane by using an isotropic lossless dielectric layer

Constantinos A. Valagiannopoulos, Nikolaos L. Tsitsas, Ari H. Sihvola, **2014** In : . 62 , p.11 , p. 5706-5714

How nonreciprocal is an effective permittivity matrix?

Constantinos A. Valagiannopoulos, **2014** In : . 56 , p.9 , p. 2018-2021

Hyperbolic-metamaterial antennas for broadband enhancement of dipole emission to free space

C. A. Valagiannopoulos, M. S. Mirmoosa, I. S. Nefedov, S. A. Tretyakov, C. R. Simovski, **2014** In : . 116 , p.16

Mimicking the perfect electromagnetic conducting scattering mechanisms with suitable bi-isotropic media

Constantinos A. Valagiannopoulos, Ari H. Sihvola, **2014** In : . 34 , p.8 , p. 593-607

On the minimal scattering response of PEC cylinders in a dielectric cloak

Constantinos A. Valagiannopoulos, Pekka Alitalo, Sergei A. Tretyakov, **2014** In : . 13 , p. 403-406

Scattering and absorption of a complex source point beam by a grounded lossy dielectric slab with a superstrate

Nikolaos L. Tsitsas, Constantinos A. Valagiannopoulos, Alexander I. Nosich, **2014** In : . 16 , p.10

Symmetric absorbers realized as gratings of PEC cylinders covered by ordinary dielectrics

Constantinos A. Valagiannopoulos, Sergei A. Tretyakov, **2014** In : . 62 , p.10 , p. 5089-5098

A miniature inhomogeneous cloak following a power law

Constantinos A. Valagiannopoulos, **2013** In : . 42 , p.1 , p. 63-71

Coupling between transmission-line networks and homogeneous media

Constantinos A. Valagiannopoulos, Pekka Alitalo, **2013** In : . 23 , p.3 , p. 318-327

Design and free-space measurements of a simple electromagnetic cloak for conducting cylindrical objects

Pekka Alitalo, Constantinos A. Valagiannopoulos, Ali E. Culhaoglu, **2013** In : . 3 , p.4

Electromagnetic absorption of gaussian beams by a grounded layered structure

C. Valagiannopoulos, **2013** In : . 22 , p.1 , p. 333-340

Improving the electrostatic field concentration in a negative-permittivity wedge with a grounded "bowtie" configuration

Constantinos A. Valagiannopoulos, Ari Sihvola, **2013** In : . 48 , p.3 , p. 316-325

Increasing the electromagnetic attenuation below a quasi-matched surface with use of passive hyperbolic metamaterials

Constantinos A. Valagiannopoulos, Igor S. Nefedov, **2013** In : . 11 , p.3 , p. 182-190

Isolating the singular term of the green's function in the vicinity of the corner formulated by two intersecting waveguides

Constantinos A. Valagiannopoulos, **2013** In : . 55 , p.1 , p. 16-23

Low-pass features of optical nano-filters constituted by simple layered structures

Constantinos A. Valagiannopoulos, Ari Sihvola, **2013** In : . 55 , p.9 , p. 2099-2106

Perfect absorption in graphene multilayers

Constantinos Valagiannopoulos, Igor S. Nefedov, **2013** In : .

The effective radiation pattern concept for realistic performance estimation of LTE wireless systems

Dimitra Zarbouti, George Tsoulos, Georgia Athanasiadou, Constantinos Valagiannopoulos, **2013** In : . 2013

Total absorption in asymmetric hyperbolic media

Igor S. Nefedov, Constantinos A. Valagiannopoulos, Seed M. Hashemi, Evgeny I. Nefedov, **2013** In : . 3

An iterative semi-analytical technique solving the boundary value problem of transmission through an anisotropic wedge

Constantinos A. Valagiannopoulos, Constantin R. Simovski, **2012** In : . 47 , p.6

Convergence analysis and oscillations in the method of fictitious sources applied to dielectric scattering problems

Constantinos A. Valagiannopoulos, Nikolaos L. Tsitsas, George Fikioris, **2012** In : . 29 , p.1 , p. 1-10

Demonstration of electromagnetic cloaking of conducting object by dielectric material cover

P. Alitalo, C. A. Valagiannopoulos, **2012** In : . 48 , p.17 , p. 1056-1057

Electromagnetic cloaking of cylindrical objects by multilayer or uniform dielectric claddings

Constantinos A. Valagiannopoulos, Pekka Alitalo, **2012** In : . 85 , p.11

Field enhancement in a grounded dielectric slab by using a single superstrate layer

Constantinos A. Valagiannopoulos, Nikolaos L. Tsitsas, **2012** In : . 2012

Implementation of the thin-wire approximation for estimating the characteristics of a metallic reinforcement bar embedded into a concrete column with circular cross section

C. Valagiannopoulos, M. Bimpas, N. Uzunoglu, **2012** In : . 54 , p.3 , p. 761-767

Integral equation analysis of a low-profile receiving planar microstrip antenna with a cloaking superstrate

Constantinos A. Valagiannopoulos, Nikolaos L. Tsitsas, **2012** In : . 47 , p.2

On jamming unfriendly submarine communication by radiating across an island in the vicinity of the opponent's coastline

Constantinos A. Valagiannopoulos, **2012** In : . 32 , p.7 , p. 438-449

On modeling perfectly conducting sharp corners with magnetically inert dielectrics of extreme complex permittivities

Constantinos A. Valagiannopoulos, Ari Sihvola, **2012** In : . 60 , p.10 , p. 4777-4784

Electromagnetic propagation into parallel-plate waveguide in the presence of a skew metallic surface

Constantinos A. Valagiannopoulos, **2011** In : . 31 , p.8 , p. 593-605

Electromagnetic scattering of the field of a metamaterial slab antenna by an arbitrarily positioned cluster of metallic cylinders

C. A. Valagiannopoulos, **2011** In : . 114 , p. 51-66

High selectivity and controllability of a parallel-plate component with a filled rectangular ridge

Constantinos A. Valagiannopoulos, **2011** In : . 119 , p. 497-511

Simplified model for EM inverse scattering by longitudinal subterranean inhomogeneities exploiting the dawn/dusk ionospheric ridge

C. A. Valagiannopoulos, N. K. Uzunoglu, **2011** In : . 5 , p.11 , p. 1319-1327

A new inverse formula based on the taylor expansion of the scattering integral

Constantinos A. Valagiannopoulos, **2010** In : . 30 , p.7 , p. 565-573

A novel methodology for estimating the permittivity of a specimen rod at low radio frequencies

C. A. Valagiannopoulos, **2010** In : . 24 , p.5-6 , p. 631-640

On developing alternating voltage around a rotating circular ring under plane wave excitation in the presence of an eccentri- cally positioned metallic core

C. A. Valagiannopoulos, **2010** In : . 12 , p. 193-204

Analytic stochastic propagation model for urban streets

V. A. Karyotis, C. A. Valagiannopoulos, **2009** In : . 4 , p.1 , p. 91-98

Green's function of a parallel plate waveguide with multiple abrupt changes of interwall distances

Constantine A. Valagiannopoulos, Nikolaos K. Uzunoglu, **2009** In : . 44 , p.5

Linearization of the T-matrix solution for quasi-homogeneous scatterers

Constantine A. Valagiannopoulos, Nikolaos L. Tsitsas, **2009** In : . 26 , p.4 , p. 870-881

On smoothening the singular field developed in the vicinity of metallic edges

Constantine A. Valagiannopoulos, **2009** In : . 31 , p.2 , p. 67-77

Rigorous computation of green's function of a parallel-plate waveguide with a tapered wall

Constantine A. Valagiannopoulos, Nikolaos K. Uzunoglu, **2009** In : . 29 , p.3 , p. 203-219

A signal coverage model for two neighboring islands of different size

C. A. Valagiannopoulos, **2008** In : . 2 , p. 115-130

Closed-form solution to the scattering of a skew strip field by metallic pin in a slab

C. A. Valagiannopoulos, **2008** In : . 79 , p. 1-21

Electromagnetic scattering from two eccentric metamaterial cylinders with frequency-dependent permittivities differing slightly each other

C. A. Valagiannopoulos, **2008** In : . 3 , p. 23-34

On examining the influence of a thin dielectric strip posed across the diameter of a penetrable radiating cylinder

C. A. Valagiannopoulos, **2008** In : . 3 , p. 203-214

On measuring the permittivity tensor of an anisotropic material from the transmission coefficients

C. A. Valagiannopoulos, **2008** In : . 9 , p. 105-116

On the resonance and radiation characteristics of multi-layered spherical microstrip antennas

Constantine A. Valagiannopoulos, Nikolaos L. Tsitsas, **2008** In : . 28 , p.4 , p. 243-264

Stochastic ray propagation for two parallel urban streets

Constantine A. Valagiannopoulos, Vasileios A. Karyotis, **2008** In : . 7 , p. 381-384

An overview of the watson transformation presented through a simple example

C. A. Valagiannopoulos, **2007** In : . 75 , p. 137-152

Full list of publications can be found on google scholar page. For more information, also visit ResearchGate, Academia and LinkedIn.

**Classical Electrodynamics I (PHYS 361)**

This course elaborates the interaction of electrostatic and magnetostatic fields with several types of matter and formulates mathematical methods for solving various geometrical setups. The connection of the observed and analyzed effects with applications at the static regime is prescribed. The electromagnetic waves in unbounded space for signal propagation, are introduced.

**Classical Electrodynamics II (PHYS 362) **

This course elaborates the treatment of advanced electrodynamic phenomena involved in light-matter interactions. Mathematical methods for the forward solving of the formed boundary value problems and optimization techniques implemented in the inverse design of simple electronic and photonic systems are presented.