| Autor: |
Kim H, Gwak S, Yu HH, Ryu J, Kim CM, Yi CH |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2023 Apr 10; Vol. 31 (8), pp. 12634-12644. |
| DOI: |
10.1364/OE.484812 |
| Abstrakt: |
We study a systematic formation of continuous exceptional points (EPs) in a fully-asymmetric optical microdisk. A parametric generation of chiral EP modes is investigated by analyzing asymmetricity-dependent coupling elements in an effective Hamiltonian. It is shown that given the external perturbation, the frequency splitting around EPs is scaled by the fundamental "strength" of EPs [J. Wiersig, Phys. Rev. Res.4, 023121 (2022)10.1103/PhysRevResearch.4.023121] multiplied by the extra responding strength of the newly added perturbation. Our finding demonstrates that the sensitivity of EP-based sensors can be maximized by carefully examining the continuous formation of EPs. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
