Regensburg 2025 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 39: Poster III
HL 39.6: Poster
Wednesday, March 19, 2025, 15:00–18:00, P3
Moiré exciton polaritons in twisted photonic lattices at room temperature — •Tobias Schneider1, Chunzi Xing2, Yu Wang3, Xiaokun Zhai2, Xinzheng Zhang3, Haitao Dai2, Xiao Wang4, Anlian Pan4, Zhenyu Xiong5, Hao Wu5, Yuan Ren5, Stefan Schumacher1,6, Xuekai Ma1, and Tingge Gao2 — 1Physics dept. and CeOPP, Paderborn University, Germany — 2Department of Physics, School of Science, Tianjin University, Tianjin 300072, China — 3The MOE Key Laboratory of Weak-Light Nonlinear Photonics and International Sino-Slovenian Join Research Center on Liquid Crystal Photonics, TEDA Institute of Applied Physics and School of Physics, Nankai University, Tianjin 300457, China — 4College of Materials Science and Engineering, Hunan University, Changsha 410082, China — 5Lab of quantum detection and awareness, Space Engineering University Beijing 101416, China — 6PhoQS, Paderborn University, Germany
Due to their support of many exotic physical phenomena such as Mott insulators or the fractal quantum Hall effect, moiré lattices have attracted great interest. In this work, rhombic optical moiré lattices are realized in microcavity exciton polaritons[1]. These lattices consist of two stacked 1D periodically patterned stripes which are twisted to a specific angle. This structure allows the resulting bands to be tuned via modulating the lattice parameters such as the periodicity, the potential depth of the stripes, and the rotation angle. In addition, moiré polaritons in twisted 2D honeycomb lattices are also observed. [1] C. Xing et al., arXiv:2408.02431 (2024).
Keywords: moiré lattice; band structure; exciton polariton; rhombic; honeycomb