2026-10-14T13:04:21Z https://www.scidb.cn/oai

10.57760/sciencedb.j00213.00255 2026-05-25T17:55:28Z

2026-05-25 The data of the article “Room temperature exciton polaritons in monolayer WS2 with suspended SiNx photonic crystal” doi:10.57760/sciencedb.j00213.00255 en This dataset primarily comprises the experimental and simulation data for a composite device consisting of a suspended SiNx photonic crystal (PC) and a monolayer of WS₂. In this study, COMSOL Multiphysics software was utilized to simulate the photonic dispersion and quality factor of the SiNx grating PC. A momentum-resolved photoluminescence (PL) spectroscopy system was employed to measure the photonic dispersion of the SiNx grating PC and the momentum-resolved PL spectra of the monolayer WS2-PC composite device. From these measurements, the normalized PL spectra of the bare PC, the monolayer WS₂, and the WS₂/PC composite device were extracted. During the momentum-resolved PL measurements, a continuous-wave solid-state laser (532 nm) was used to excite the monolayer WS2/SiNx PC sample. The experimental parameters were set as follows: a laser power of 25 μW, a beam spot size of approximately 2 μm, a spectrometer grating density of 300 grooves/mm, a slit width of 100 μm, and an integration time of 10 s.The dataset is organized into three files. File 1, corresponding to Figure 1 in the text, primarily contains a schematic of the SiNₓ grating structure and the transverse electric (TE) mode electric field distribution ("光栅结构示意图.png"), the simulated photonic dispersion ("SiNx光栅光学色散仿真.csv", Origin) and quality factor ("SiNx光栅品质因子仿真.csv", Origin) of the SiNₓ grating PC, the measured photonic dispersion of the SiNₓ grating PC ("SiNx光栅光学色散测量.csv", Origin), an optical micrograph of the monolayer WS₂ transferred onto the SiNₓ grating surface captured under a 100× objective lens ("单层WS2-SiNx PC复合器件光学照片.png"), and a schematic diagram of the monolayer WS2-SiNₓ PC composite device ("单层WS2/SiNx PC复合器件示意图.png"). File 2, corresponding to Figure 2, primarily includes the momentum-resolved PL spectra of the monolayer WS₂-PC composite device ("复合器件动量分辨PL谱.csv", Origin), along with the experimental data and corresponding fitting results for the upper and lower dispersion branches of the exciton-polaritons ("激子极化激元上下两支实验和拟合结果.csv", Origin). Finally, File 3, corresponding to Figure 3, mainly contains the spectral data extracted from the momentum-resolved photoluminescence spectra, specifically the normalized PL spectrum of the bare PC ("纯PC归一化PL谱.csv", Origin), the normalized PL spectrum of the monolayer WS2 ("单层WS2归一化PL谱.csv", Origin), and the normalized PL spectrum of the monolayer WS₂-PC composite device ("单层WS2-PC复合器件归一化PL谱.csv", Origin). Exciton-polariton; transitional metal disulfides; photonic crystal; light-matter interaction hua yu Zhou Jiaru Li Hao Li Geng Fan Xiaofeng Gu Changzhi Liu Baoli RESTRICTED dataset http://www.doi.org/10.7498/aps.75.20260478 Science Data Bank