Department of Electronics and Nanoengineering

Designer Materials and Devices

The Designer Materials and Devices group is located at the Department of Electronics and Nanoengineering, Aalto University. Our research interests span multiple dimensions: (i) from fundamental electrodynamics to functional devices; (ii) from microscopic to macroscopic electromagnetic systems; (iii) from microwaves to visible; (iv) from one-dimensional to four-dimensional geometries. The core of our research is in metamaterials and metasurfaces.
Artistic illustration of the concept of space-time metamaterials
Artistic illustration of the concept of space-time metamaterials inspired by "La persistència de la memòria"

Nature has provided us with an abundance of materials hosting diverse physical properties. Among them, electrodynamic material properties stand out as one of the most important for a variety of applications, from communications and electronics to medicine and entertainment. However, the range and strength of electrodynamic properties of natural materials are often limited and cannot satisfy rapidly growing needs of the modern industry. This circumstance has led to the emergence of an important category of designer matter which embraces composites, colloids, photonic crystals, metamaterials, and others. The key aim of this field is to develop new materials with desired properties and to explore and invent principally novel functionalities.

Research

We pursue 4 research programs towards advanced designer materials and devices ...

based on novel engineering approaches

... based on novel engineering approaches. Design of next-generation reconfigurable intelligent surfaces using machine learning techniques.

based on novel topologies

... based on novel topologies. Enhancement of weak exotic effects in complex matter in connection to some concepts of quantum field theory.

based on novel dimensions

... based on novel dimensions. Design of time-varying systems.

based on novel material substances

... based on novel material substances. Exploring new solutions in optoelectronics with topological materials.

Our current research topics include

•    Metamaterials and metasurfaces
•    Spatial and temporal photonic crystals
•    Magnetics at nanoscale
•    Axion and Weyl electrodynamics
•    Electromagnetic nonreciprocity
•    Fourier optics
•    Machine learning and inverse design
•    Reconfigurable intelligent surfaces 
•    Advanced diffractive optical components.

If you are interested in working with us (M.Sc. & Ph.D. thesis, research visit, collaboration) and/or have your own fellowship/funding, please contact Prof. Viktar Asadchy.

Open positions

Not at the moment.

People

 Viktar Asadchy

Viktar Asadchy

Assistant Professor

Latest publications

See the entire list of publications at Acris or Google Scholar.

Topological Materials for Functional Optoelectronic Devices

Hamid Chorsi, Bing Cheng, Bo Zhao, Johann Toudert, Viktar Asadchy, Omor F. Shoron, Shanhui Fan, Ryusuke Matsunaga 2022 Advanced Functional Materials

Reciprocal Metasurfaces for On-axis Reflective Optical Computing

Ali Momeni, Hamid Rajabalipanah, Mahdi Rahmanzadeh, Ali Abdolali, Karim Achouri, Viktar Asadchy, Romain Fleury 2021 IEEE Transactions on Antennas and Propagation

Violating Kirchhoff's Law of Thermal Radiation in Semitransparent Structures

Yubin Park, Viktar S. Asadchy, Bo Zhao, Cheng Guo, Jiahui Wang, Shanhui Fan 2021 ACS Photonics

Scattering of light by spheres made from a time-modulated and dispersive material

G. Ptitcyn, A. Lamprianidis, T. Karamanos, M. Muller, R. Alaee, V. S. Asadchy, M. S. Mirmoosa, M. Albooyeh, S. Fan, C. Rockstuhl, S. A. Tretyakov 2021 2021 15th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2021

Multiple-Beam Power Combining Using Space-Time Metasurfaces

X. Wang, V. S. Asadchy, S. A. Tretyakov 2021 2021 15th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2021

Space-Time Metasurfaces for Power Combining of Waves

Xuchen Wang, Viktar S. Asadchy, Shanhui Fan, Sergei A. Tretyakov 2021 ACS Photonics

Nontrivial point-gap topology and non-Hermitian skin effect in photonic crystals

Janet Zhong, Kai Wang, Yubin Park, Viktar Asadchy, Charles C. Wojcik, Avik Dutt, Shanhui Fan 2021 Physical Review B

Sub-Wavelength Passive Optical Isolators Using Weyl Semimetals

V. Asadchy, C. Guo, B. Zhao, S. Fan 2020 2020 14th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2020

Three-dimensional Random Dielectric Colloid Metamaterial with Giant Isotropic Optical Activity

Viktar S. Asadchy, Cheng Guo, Ihar A. Faniayeu, Shanhui Fan 2020 LASER AND PHOTONICS REVIEWS
More information on our research in the Research database.
Research database

Contact:
Professor Viktar Asadchy
Email: viktar.asadchy at aalto.fi
Tel.: +358504205846

Postal address:
Department of Electronics and Nanoengineering
Aalto University School of Electrical Engineering
P.O. Box 15500, 00076 Aalto, Finland

Visiting address:
Maarintie 8, 02150 Espoo, Finland

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