Xueyong Yuan, Guangsheng Jiang, Pingwei Liu, Qiang Fu, Zhi Zhang, Tianqi Liu, Yuru Jiang, Weiwei Zhao, Wenhui Wang, Bei Zhao, Zejun Li, Dan Liu, Zhenhua Ni, Junpeng Lu
Transition-metal dichalcogenides (TMDCs), as emerging optoelectronic materials, necessitate the establishment of an experimentally viable system to study their interaction with light. In this study, we propose and analyze a WS2 /PMMA/Ag planar Fabry-Perot (F-P) cavity, enabling the direct experimental measurement of WS2 absorbance. By optimizing the structure, the absorbance of A exciton of WS2 up to 0.546 can be experimentally achieved, which matches well with the theoretical calculations. Through temperature and thermal expansion strain induced by temperature, the absorbance of the A exciton can be tuned in situ...
May 1, 2024: Optics Letters