稀土微米晶的偏振上转换发光

该数据集来自于LiYF4:Yb,Ln（Ln=Er，Tm，Ho）微米晶的偏振上转换发光性质研究，其中包含LiYF4:Yb,Er微米晶的扫描电子显微镜照片、不同偏振角度下的上转换发光光谱及极坐标图。偏振是光的固有属性之一，用于描述光波电矢量振动的空间分布相对于其传播方向的不对称性。该工作揭示了微米晶的偏振上转换发光性质，部分跃迁的偏振度接近1，可认为是纯线偏光，且表现出两组相互垂直的偏振方向，与晶体取向具有高度的关联。所述数据在扫描电子显微镜（Hitachi S-4800）和多场联用共聚焦显微镜（WITec alpha300 R）上采集获得，采集时间为2019年7月10日至2019年9月15日，采集地点为北京大学。该数据集对应于研究内容中稀土纳米材料发光性能的精准调控。

This dataset is derived from a study on the polarized upconversion luminescence properties of LiYF4:Yb,Ln (Ln=Er, Tm, Ho) microcrystals. It includes scanning electron microscopy (SEM) images of LiYF4:Yb,Er microcrystals, upconversion luminescence spectra at different polarization angles, and polar plots. Polarization is one of the inherent properties of light, which describes the asymmetry of the spatial distribution of the electric vector vibration of a light wave relative to its propagation direction. This work reveals the polarized upconversion luminescence characteristics of the microcrystals: the polarization degree of some transitions is close to 1, which can be regarded as pure linearly polarized light, and two sets of mutually perpendicular polarization directions are observed, which are highly correlated with the crystal orientation. The data were collected using a Hitachi S-4800 scanning electron microscope and a WITec alpha300 R multi-field confocal microscope from July 10, 2019 to September 15, 2019 at Peking University. This dataset corresponds to the precise regulation of luminescence properties of rare earth nanomaterials in the corresponding research content.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于稀土微米晶的偏振上转换发光性质研究，具体包含LiYF4:Yb,Er微米晶的扫描电子显微镜照片、不同偏振角度下的上转换发光光谱及极坐标图。数据采集于2019年7月10日至9月15日在北京大学，旨在支持稀土纳米材料发光性能的精准调控，部分跃迁的偏振度接近1，表现出纯线偏光特性并与晶体取向高度关联。