Year: 2021
Type: article
Abstract: Optical properties of Yb-doped LiNbO3 crystals were investigated.The low temperature absorption and selective emission of LiNbO3:Yb 3+ crystals obtained by Montoya et al were reexamined.The LiNbO3:Yb 3+ crystals absorption and emission spectra show broad emission due to the presence of four non-equivalent sites: three octahedral sites (Li + (S1), Nb 5+ (S2), and a vacant octahedron(S3)) and an interstitial tetrahedral site(S4) .Considering the presence of these four Yb 3+ ion-occupied sites, and also the electron-phonon coupling processes, the majority of emission and absorption lines was assigned.For the different observed optical centers in LiNbO3, the experimental Stark energy levels of Yb 3+ ions were established.
Source: Optica Pura y Aplicada
Author: T. Kallel
Institution: Jouf University
Language: Spanish
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4200440797