3 papers
physics.optics2026
Reconfigurable plasmonic hot spots enabled by composite VO2-gold plasmonic antennas
Rostislav Åepa, JiÅà Kabát, Tomáš Å ikola +1
We theoretically investigate the formation of electric and magnetic hot spots with reconfigurable plasmonic antennas. We consider three material systems offering different levels o…
cond-mat.mtrl-sci2024
Efficient nanoscale imaging of solid-state phase transitions by transmission electron microscopy demonstrated on vanadium dioxide nanoparticles
Michal Horák, Peter KepiÄ, JiÅà Kabát +5
We present annular dark field scanning transmission electron microscopy (ADF-STEM) as an efficient, fast, and non-destructive nanoscale tool for monitoring solid-state phase transi…
physics.optics2024
Plasmonic lightning-rod effect
Vlastimil KÅápek, Rostislav Åepa, Michael Foltýn +2
The plasmonic lightning-rod effect refers to the formation of a strong electric near field of localized surface plasmons at the sharp features of plasmonic antennas. While this eff…