А.В. Астраханцева, А.А. Шавельев, С. В. Кузнецов, А. Г. Николаев, К. Н. Болдырев, Алексей Сергеевич Низамутдинов, Вадим Владимирович Семашко
{"title":"Оптическая спектроскопия ионов Er-=SUP=-3+-=/SUP=- в кристаллах BaY-=SUB=-1,8-=/SUB=-Lu-=SUB=-0,2-=/SUB=-F-=SUB=-8-=/SUB=-","authors":"А.В. Астраханцева, А.А. Шавельев, С. В. Кузнецов, А. Г. Николаев, К. Н. Болдырев, Алексей Сергеевич Низамутдинов, Вадим Владимирович Семашко","doi":"10.21883/os.2023.05.55708.61-22","DOIUrl":null,"url":null,"abstract":"The spectral and kinetic characteristics of Er3+ ions in heavily doped BaY1.8Lu0.2F8 mixed crystals have been studied. Absorption and luminescence spectra were recorded for BaY1.8Lu0.2F8 crystals with Er3+ ion concentrations of 20.0 and 30.0 at.%. The kinetic dependences of luminescence decay in the infrared range have also been studied. A model of the level populations of Er3+ ions is constructed on the basis of a three-level scheme for pumping the 4I11/2 state at a wavelength of 970 nm without taking into account up-conversion processes. The gain of BaY1.8Lu0.2F8 crystals with Er3+ ion concentrations of 20.0 and 30.0 at.% is estimated at different pump powers.","PeriodicalId":24059,"journal":{"name":"Оптика и спектроскопия","volume":"15 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Оптика и спектроскопия","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21883/os.2023.05.55708.61-22","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
The spectral and kinetic characteristics of Er3+ ions in heavily doped BaY1.8Lu0.2F8 mixed crystals have been studied. Absorption and luminescence spectra were recorded for BaY1.8Lu0.2F8 crystals with Er3+ ion concentrations of 20.0 and 30.0 at.%. The kinetic dependences of luminescence decay in the infrared range have also been studied. A model of the level populations of Er3+ ions is constructed on the basis of a three-level scheme for pumping the 4I11/2 state at a wavelength of 970 nm without taking into account up-conversion processes. The gain of BaY1.8Lu0.2F8 crystals with Er3+ ion concentrations of 20.0 and 30.0 at.% is estimated at different pump powers.
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