3 papers
physics.optics2025
Oscillator Chain: A Simple Model for Universal Description of Excitation of Waveguiding Modes in Thin Films
Kestutis Staliunas
There is no simple and universal analytical description of various micro-optical systems related with Fano resonances. This especially concern modulated thin films, which, when cou…
physics.optics2024
Light Amplification by Active Meta-mirrors
Ignas Lukosiunas, Kestutis Staliunas
We consider a scheme of thin films, deposited on periodically modulated amplifying materials. We show that the reflection from such meta-interface can undergo substantial amplifica…
physics.optics2024
Light Trapping by Non-Hermitian Thin Films
Lina Grineviciute, Ignas Lukosiunas, Julianija Nikitina +4
One of the exceptional features of non-Hermitian systems is the unidirectional wave interactions. Simultaneous modulation of the real and the imaginary part of the interaction pote…