Infrared absorption and laser spectroscopy of Ho3+ doped K2YF5 microparticles

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-03-25 DOI:10.1016/j.optmat.2025.116938

Pakwan Chanprakhon, Michael F. Reid, Jon-Paul R. Wells

引用次数: 0

Abstract

High-resolution absorption and laser spectroscopy are used to determine electronic energy levels for Ho

^{3 +}

ions in K

_{2}

_{5}

microparticles. A total of 72 crystal-field energy levels, distributed among 8 multiplets, are assigned. This optical data is used for crystal-field modelling of the electronic structure of Ho

^{3 +}

in K

_{2}

_{5}

. Partially-resolved hyperfine splittings are accurately reproduced by the model. The temperature dependence of the fluorescent lifetime of the

^{5}

_{5}

multiplet is measured and the temperature dependence of the non-radiative relaxation is modelled by a five-phonon process. Preliminary measurements of infra-red to visible upconversion in microparticles co-doped with Ho

^{3 +}

and Yb

^{3 +}

is reported.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.