Broadband near-infrared luminescence at around 1.0 µm in Pr3+/Er3+ co-doped tellurite glass

Zhou, Mingjiong; Zhou, Yaxun; Zhu, Yarui; Su, Xiue; Li, Jun; Shao, Hua‐Chieh

doi:10.1016/j.jlumin.2018.07.021

Cited by 16 publications

(5 citation statements)

References 49 publications

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“…Firstly, broadband near-infrared luminescence at around 1000 nm in Pr 3+ /Er 3+ co-doped glass samples is due to two overlapped 4 I 11/2 → 4 I 15/2 (Er 3+ ) and 1 D 2 → 3 F 3,4 (Pr 3+ ) transitions. These phenomena were studied previously for fluorotellurite glass co-doped with Pr 3+ /Er 3+ ions 35 . Secondly, the near-infrared emission band at 1535 nm due to 4 I 13/2 → 4 I 15/2 (Er 3+ ) transition is overlapped with 1 G 4 → 3 H 5 transition of Pr 3+ in glass samples co-doped with Pr 3+ /Er 3+ .…”

Section: Resultsmentioning

confidence: 79%

Fluoroindate glasses co-doped with Pr3+/Er3+ for near-infrared luminescence applications

Pisarski¹,

Pisarska²,

Kuwik³

et al. 2020

Sci Rep

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Fluoroindate glasses co-doped with Pr3+/Er3+ ions were synthesized and their near-infrared luminescence properties have been examined under selective excitation wavelengths. For the Pr3+/Er3+ co-doped glass samples several radiative and nonradiative relaxation channels and their mechanisms are proposed under direct excitation of Pr3+ and/or Er3+. The energy transfer processes between Pr3+ and Er3+ ions in fluoroindate glasses were identified. In particular, broadband near-infrared luminescence (FWHM = 278 nm) associated to the 1G4 → 3H5 (Pr3+), 1D2 → 1G4 (Pr3+) and 4I13/2 → 4I15/2 (Er3+) transitions of rare earth ions in fluoroindate glass is successfully observed under direct excitation at 483 nm. Near-infrared luminescence spectra and their decays for glass samples co-doped with Pr3+/Er3+ are compared to the experimental results obtained for fluoroindate glasses singly doped with rare earth ions.

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Section: Resultsmentioning

confidence: 79%

Fluoroindate glasses co-doped with Pr3+/Er3+ for near-infrared luminescence applications

Pisarski¹,

Pisarska²,

Kuwik³

et al. 2020

Sci Rep

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“…Efficient near-infrared photo-luminescence has attracted more and more attention for the promising applications in optical fiber communication [1], remote sensor [2], biological imaging [3], and laser guide stars [4] , etc. So these laser materials have become study focus [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation

Zhang¹,

Wen²,

Pan³

et al. 2020

Mater. Res. Express

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Aerodynamic levitation method has been successfully used to prepare new Er 3+ /Yb 3+ co-doped La 2 O 3 -Nb 2 O 5 -Ta 2 O 5 glasses. 980 nm laser can be used to excite the glass for strong absorption of Yb 3+ ions. The glass show high infrared transmittance of ∼80%. Moreover, the OH − concentration is very low with the value of ∼7 ppm, indicating excellent infrared transmission. The glass performs good optical properties with refractive index of near 2.3. The plane sweeping of EDS reveals that Er 3+ and Yb 3+ are distributed homogeneously in the glass. Strong down-conversion luminescence centered at 1530 nm has been achieved from the glass excited at 980 nm. The near-infrared emission is due to the transition of 4 I 13/2 → 4 I 15/2 in Er 3+ ions. After fitting the decay curve, the lifetime of the near-infrared emission can be decided to be ∼5.517 ms. Such long lifetime is very helpful for rare earth ions to achieve strong emission. Figure 5. The schematic diagram of luminescence process.

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“…De acordo com Zhou et al (ZHOU et al, 2018) uma transferência de energia dos íons Pr 3+ para o Er 3+ também pode estar ocorrendo, pois a intensidade das bandas referentes aos íons Er 3+ se intensificam, ao passo que as bandas associadas ao Pr 3+ diminuem a medida que a concentração de Er 3+ nas amostras aumenta. Além disso, nos tantalatos de ítrio dopados com íons Er 3+ estudados previamente (BORGES, 2019), vemos que a banda em 980 nm apresentou baixa intensidade relativa de emissão, mesmo quando a concentração de íons Er 3+ atinge 5,0 % em mol.…”

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“…Em seguida, parte desses íons no estado excitado decaem rapidamente e não-radiativamente para o nível 4 S3/2 de menor energia e, em seguida decaem radiativamente para o nível 4 I11/2 dando origem a emissão em 1241 nm (ZHOU et al, 2018). Enquanto isso, outra parte dos íons no estado excitado 4 F5/2 decaem não-radiativamente ao nível 4 F7/2 e populam o nível inferior 4 I11/2 através do seguinte mecanismo de relaxação cruzada:…”

Section: ____________________________________________________________...unclassified

“…Porém, parte da populações do nível 4 F7/2 decairia não-radiativamente muito rápido para o estado metaestável 4 I13/2 devido a pequenas lacunas de energia entre o estado 4 F7/2 e os estados excitados inferiores do Er 3+ e assim, desativando as emissões a partir desse nível. Porém, na presença do íon Pr 3+ , a população do estado 4 I13/2 também ocorre através dos seguinte mecanismos de relaxação cruzada (ZHOU et al, 2018):…”

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Tantalatos de ítrio dopados com íons terras raras: avaliação das propriedades estruturais, fotoluminescentes e de cintilação para aplicações em fotônica e nanomedicina

Labaki¹

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Broadband near-infrared luminescence at around 1.0 µm in Pr3+/Er3+ co-doped tellurite glass

Cited by 16 publications

References 49 publications

Fluoroindate glasses co-doped with Pr3+/Er3+ for near-infrared luminescence applications

Fluoroindate glasses co-doped with Pr3+/Er3+ for near-infrared luminescence applications

Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation

Tantalatos de ítrio dopados com íons terras raras: avaliação das propriedades estruturais, fotoluminescentes e de cintilação para aplicações em fotônica e nanomedicina

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Broadband near-infrared luminescence at around 1.0 µm in Pr3+/Er3+ co-doped tellurite glass

Cited by 16 publications

References 49 publications

Fluoroindate glasses co-doped with Pr3+/Er3+ for near-infrared luminescence applications

Fluoroindate glasses co-doped with Pr3+/Er3+ for near-infrared luminescence applications

Study on optical properties and luminescence of Er3+/Yb3+ co-doped La2O3-Nb2O5-Ta2O5 glasses prepared by aerodynamic levitation

Tantalatos de ítrio dopados com íons terras raras: avaliação das propriedades estruturais, fotoluminescentes e de cintilação para aplicações em fotônica e nanomedicina

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Broadband near-infrared luminescence at around 1.0 µm in Pr3+/Er3+ co-doped tellurite glass

Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation