
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
Erratum
Constantinos Valagiannopoulos, 2020 In : . 127 , p.23
Injection-Locked Photonic Oscillators
Costas Valagiannopoulos, Vassilios Kovanis, 2020 In : .
New Self-Organization Route to Tunable Narrowband Optical Filters and Polarizers Demonstrated with ZnO–ZnWO4 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
Photonic inverse design with neural networks
Arsen Sheverdin, Francesco Monticone, Constantinos Valagiannopoulos, 2020 In : . 14 , p.2
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
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.