[HTML][HTML] Nonlinear optical effects in natural topaz

R Filosa, GS Elettivo, M Ferraro, S Procopio… - Journal of …, 2023 - Elsevier
We investigate the nonlinear optical properties of natural topaz. For the first time, the
observation of nonlinear phenomena related to multiphoton absorption effects, such as the …

The thermal stability of· S2-and· S3-radicals in afghanite

Y Rao, Q Guo, L Liao - Mineralogy and Petrology, 2024 - Springer
Polysulfide ions play a crucial role in both the lithospheric and biospheric sulfur cycles. This
study reveals the coexistence of various polysulfides (· S 2-,· S 3-and S 2 2−) alongside …

Relationship between the Coloration Mechanism and Gemological Properties of Purple Scapolite

Y Rao, Q Guo, S Zhang, L Liao - Crystals, 2023 - mdpi.com
Purple scapolite is a precious gemstone. In this paper, we compared the crystal structure
and spectral characteristics of purple scapolite before and after heat treatment with …

EPR Spectroscopic and Calorimetric Study of Minerals of the Amblygonite–Montebrasite Series from Rare-Metal Pegmatite of the Voron'i Tundras (Kola Peninsula) …

SV Vyatkin, YD Gritsenko, LP Ogorodova… - Geochemistry …, 2024 - Springer
The paper reports the first comprehensive physicochemical study of minerals of the
amblygonite LiAlPO4F–montebrasite LiAlPO4 (OH) series. An EPR spectroscopic and …

EPR spectroscopic and calorimetric study of minerals of the amblygonite–montebrasite series from rare-metal pegmatite of the Voroniye tundry (Kola peninsula) and …

SV Vyatkin, YD Gritsenko, LP Ogorodova… - …, 2024 - journals.rcsi.science
For the first time, a comprehensive physicochemical study of minerals of the amblygonite
LiAlPO 4 F—montebrasite LiAlPO 4 (OH) series was carried out. An EPR spectroscopic and …