Open AccessАп-конверсия инфракрасного излучения в щелочно-земельных фторидах, активированных Er-=SUP=-3+-=/SUP=-
Author(s) -
Е.А. Раджабов,
Р.Ю. Шендрик
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2020.11.50164.10-20
Subject(s) - photon upconversion , luminescence , excited state , excitation , ion , laser , analytical chemistry (journal) , materials science , yield (engineering) , infrared , chemistry , atomic physics , optoelectronics , optics , physics , organic chemistry , quantum mechanics , chromatography , metallurgy
Upconversion processes were studied in MeF2-ErF3 crystals (Me - Ca, Sr, Ba) in the range of ErF3 concentrations from 0.01 to 10 mol% when excited in infrared bands of the Er3 + ion by laser diodes of 808, 978, 1542 nm. Upon excitation of 1542 nm, the 4I11/2-4I15/2 band at 990 nm predominates in the luminescence spectrum of MeF2-Er; the fraction of visible bands is less than 0.1. The energy yield of the upconversion luminescence MeF2-10% ErF3 upon excitation of 1542 nm with a density of about 1 W/cm2 is in the range of 14-26%.