Oral Sessions
제35회 정기총회 및 2024년도 동계학술발표회
Wednesday-Friday, February 14-16, 2024; 수원컨벤션센터
Session W2A-Ⅳ-: 양자전자 II
10:45 AM-12:15 PM, Wednesday, February 14, 2024
Room: 401호 (A)
Chair: 강봉주, 한국화학연구원
Abstract: W2A-Ⅳ.01 : Topological exciton polaritons based on guided mode resonances in compact junction metasurfaces
Presenter:
Jun Young Chul
(Materials Science and Engineering, Ulsan National Institute of Science and Technology)
Author:
JUN Young Chul *1
(1Materials Science and Engineering, Ulsan National Institute of Science and Technology)
Topological photonic structures can provide enhanced control of light and may offer new platforms for exciton polaritons. Here, we experimentally demonstrate topological exciton polaritons based on guided mode resonances in perovskite junction metasurfaces. Strong exciton responses in perovskite materials enable room temperature operation while compact topological junctions lead to remarkable spatial and spectral responses. Interface states in a junction of the two different gratings combine a small spatial size with narrow, discrete momentum-space distribution while they are directly accessible in the normal direction. This leads to bright, narrow-angled polariton emission with enhanced nonlinearities in compact geometries. The topological junction studied here may become promising platforms for exciton polaritons. We also discuss possible implications for polariton Bose-Einstein condensation.