Photoluminescence features and nonlinear-optical properties of the Ag0.05Ga0.05Ge0.95S2eEr2S3 glasses

Effect of Na doping on photoluminescence and laser stimulated nonlinear T optical features of ZnO nanostructures

In this work, nonlinear optical properties of Na: ZnO thin films (Na: ZnO) have been experimentally elaborated. The principal possibility to operate the nonlinear optical features using external laser beams is shown. The Na: ZnO films were synthesized by spray pyrolysis technique at a deposition temperature equal to about 400 C. XRD graph reveals that the grown films were polycrystalline in nature with a dominant peak corresponding to (0 0 2) plane. Despite the difference in the ionic radii of the Na and Zn, an angle shift in the XRD peak was not observed, whereas there was a significant chang…

CsPbBr(Cl,I)3 quantum dots in fluorophosphate glasses

For the first time the quantum dots CsPbX_3 (X=Cl, Br, I) in the fluorophosphate glasses were prepared. The samples were precipitated by two methods:(i) through self-crystallization during cooling of the glass melt and (ii) heat treatment of the glass. Controlled formation of CsPbX_3 quantum dots was realized by adjustment of cooling rate and heat-treatment conditions. The X-ray diffraction data was confirmed CsPbCl_3(Br_3, I_3) quantum dots formation. It was shown that, CsPbX_3 (X=Cl, I) quantum dots are formed in a cubic modification, while CsPbBr_3 in orthorhombic one. The photoluminescence…

沸石咪唑酯骨架玻璃发射白光

Zeolitic imidazolate framework glasses emit white light

本研究发现基于Zn的ZIF玻璃具有宽带白光发射特性，通过退火处理可显著增强其发光性能，并基于此制备了高效稳定的白光LED，证明了ZIF玻璃在光子材料领域的应用潜力。

大面积光子膜实现单层WSe2光致发光和二次谐波产生的均匀强增强

Large-Area Photonic Membranes Achieving Uniform and Strong Enhancement of Photoluminescence and Second-Harmonic Generation in Monolayer WSe2

本文提出一种大面积自支撑膜光子平台，利用准连续体束缚态在单层WSe2中实现光致发光和二次谐波产生的均匀强增强（分别达1158倍和378倍），并支持晶圆级结构表征与非线性耦合研究。

Mirror-Coupled Microsphere can narrow the Angular distribution of Photoluminescence from WS2 Monolayers

Engineering optical emission from two dimensional, transition metal dichalcogenides (TMDs) materials such as Tungsten disulphide (WS2) has implications in creating and understanding nanophotonic sources. One of the challenges in controlling the optical emission from 2D materials is to achieve narrow angular spread using a simple photonic geometry. In this paper, we study how the photoluminescence of a monolayer WS2 can be controlled when coupled to film coupled microsphere dielectric antenna. Specifically, by employing Fourier plane microscopy and spectroscopic techniques, we quantify the wave…

TeO2-ZnO-BaO三元体系中碲酸盐玻璃的光学、磁光性质及光纤拉制能力

Optical, magneto-optical properties and fiber-drawing ability of tellurite glasses in the TeO2-ZnO-BaO ternary system

本研究表征了TeO2-ZnO-BaO碲酸盐玻璃的光学与磁光性质，发现ZnO替代BaO可提升折射率和Verdet常数，并成功展示了其光纤拉制能力。