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RESEARCH INTERESTS

Applied physics, photonics, plasmonics, optomagnonics, metasurfaces, dark matter

ABOUT/BIOGRAPHY

Researcher in nanophotonics, magneto-optics, and metasurfaces. Authored 32 peer-reviewed papers (including a sole-author PRB 2018) and one recent preprint on axion-mediated photon transitions; editor and chapter author of Optomagnonic Structures (World Scientific, 2021). Born in 1984 (Athens, GREECE). 


Appointments

 • Postdoctoral Researcher, NCSR “Demokritos”, Institute of Nanoscience & Nanotechnology - ZEUS (EU) project: Zero-loss Energy harvesting Using nanowire solar cells in Space (Sept. 2025 - now).

 • Postdoctoral Researcher, National & Kapodistrian University of Athens (NKUA), Condensed Matter Physics — Quantum Topological Nanophotonics (–).  

 • Postdoctoral Researcher, NCSR “Demokritos” — NanoMet (ESPA/EPAνEK 2014–2020) (–).    

 • Postdoctoral Researcher, NKUA — computational/theoretical electrodynamics, fast-light cloaks (–).  

 • Postdoctoral Researcher, NCSR “Demokritos” — nanophotonic metasurfaces; multiple scattering (–).  

 • Research Associate (FP7/FET), NCSR “Demokritos” — acousto-optic silicon structures (–). 

Education

 • PhD, Applied Mathematical & Physical Sciences (NTUA) & NCSR “Demokritos” — Photonic structures for nanoscale EM-wave control (; 3rd Best NTUA PhD 2014).

 • MSc, Physics & Technological Applications (NTUA & NCSR “Demokritos”) (2007–2009). 

 • MSc, Applied Mechanics (NTUA, Inter-departmental) (2013–2017). 

 • Diploma, Applied Mathematical & Physical Sciences, NTUA (2001–2007).

Selected publications & book

 • E. Almpanis (sole author), Dielectric magnetic microparticles as photomagnonic cavities, Phys. Rev. B 97, 184406 (2018).

 • E. Almpanis (sole author), Axion-mediated photon-to-photon transitions in high-finesse dielectric resonators, arXiv:2506.04666 (2025, submitted to PRD). 

 • Book (Editor): Optomagnonic Structures: Novel Architectures for Simultaneous Control of Light and Spin Waves (World Scientific, 2021); Chapter 6 co-authored. 

Grants, awards & honors

 • IKY Postdoctoral Fellowships (2015–2016; 2019–2021, Siemens Program & IKY), NCSR “Demokritos” PhD scholarship (2008–2012), NTUA Thomaideio Award – 3rd Best PhD (2014). 

Teaching (NTUA, School of Applied Mathematical and Physical Sciences) 

 • Autonomous teaching (2022–2025): Electromagnetism II (Semester 5), Group Theory in Physics (Semester 6); Physics II (various schools).

Supervision & service

 • Co-supervision assistance: M. Panagiotidis (PhD, 2023), H.-I. Loulas (ongoing PhD), I. Antonoglou (Diploma, 2024). Session organizer, IEEE COMCAS 2021; invited talks at Max Planck Institute (MPL), 2019 and NN18, 2018.

WEBSITES

https://orcid.org/0000-0001-8128-3118

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PUBLICATIONS

Almpanis, Evangelos, Axion-mediated photon-to-photon transitions in high finesse dielectric resonators arXiv preprint arXiv:2506.04666, 2025 [doi]

Zouros, Grigorios P, Loulas, Iridanos, Almpanis, Evangelos, Krasnok, Alex and Tsakmakidis, Kosmas L, Anisotropic virtual gain and large tuning of particles’ scattering by complex-frequency excitations Communications Physics, Nature Publishing Group UK London, Volume 7, Pages: 283, 2024 [doi]

Panagiotidis, Emmanouil, Almpanis, Evangelos, Papanikolaou, Nikolaos and Stefanou, Nikolaos, Optical Transitions and Nonreciprocity in Spatio-Temporally Periodic Layers of Spherical Particles Advanced Optical Materials, Wiley Online Library, Volume 11, Pages: 2202812, 2023 [doi]

Almpanis, E., Zouros, G.P., Pantazopoulos, P.A., Tsakmakidis, K.L., Papanikolaou, N. and Stefanou, N., Spherical optomagnonic microresonators: Triple-resonant photon transitions between Zeeman-split Mie modes Physical Review B, Volume 101, Article Number: 054412, 2020 [doi]

Tsakmakidis, KL, Reshef, O, Almpanis, E, Zouros, GP, Mohammadi, E, Saadat, D, Sohrabi, F, Fahimi-Kashani, N, Etezadi, D, Boyd, RW and others, Ultrabroadband 3D invisibility with fast-light cloaks Nature communications, Nature Publishing Group UK London, Volume 10, Pages: 4859, 2019 [doi]

Almpanis, Evangelos, Dielectric magnetic microparticles as photomagnonic cavities: Enhancing the modulation of near-infrared light by spin waves Physical Review B, APS, Volume 97, Pages: 184406, 2018 [doi]

Pantazopoulos, P.A., Stefanou, N., Almpanis, E. and Papanikolaou, N., Photomagnonic nanocavities for strong light-spin-wave interaction Physical Review B, Volume 96, Article Number: 104425, 2017 [doi]

Almpanis, E., Pantazopoulos, P.-A., Papanikolaou, N., Yannopapas, V. and Stefanou, N., Metal-nanoparticle arrays on a magnetic garnet film for tunable plasmon-enhanced Faraday rotation Journal of the Optical Society of America B: Optical Physics, Volume 33, Pages: 2609-2616, 2016 [doi]

Smyrnakis, A., Almpanis, E., Constantoudis, V., Papanikolaou, N. and Gogolides, E., Optical properties of high aspect ratio plasma etched silicon nanowires: Fabrication-induced variability dramatically reduces reflectance Nanotechnology, Volume 26, Article Number: 085301, 2015 [doi]

Tserkezis, C, Papanikolaou, N, Almpanis, E and Stefanou, N, Tailoring plasmons with metallic nanorod arrays Physical Review B—Condensed Matter and Materials Physics, APS, Volume 80, Pages: 125124, 2009 [doi]

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