SAMOP 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

Q: Fachverband Quantenoptik und Photonik

Q 22: Poster II

Q 22.75: Poster

Dienstag, 7. März 2023, 16:30–19:00, Empore Lichthof

Stability of bound states in the continuum in one-dimensional resonator — •Ekaterina Maslova, Mikhail Rybin, Andrey Bogdanov, and Zarina Sadrieva — Saint-Petersburg, Russia

Bound states in the continuum (BIC) are resonances with infinite radiative quality (Q) factor. Although infinite Q factor is a mathematical abstraction, high-Q supercavity modes whose origin corresponds to genuine BIC can be excited in real samples. We consider Q-factor of BIC in one-dimensional resonators consisting of dielectric blocks. We investigate the dependence of the Q-factor on the structural disorder in symmetric and asymmetric structures. Symmetric structure unit cell consists of two similar blocks, while in asymmetric case there are two types of blocks with different size parameters. We studied electromagnetic waves in a finite array of blocks, which were calculated using the numerical simulation by finite difference method. The results show that in an asymmetric system the Q-factor is resistant to the introduction of structural disorder.