(n,γ)-Studien an Yb 172 und Yb 174 / (n,γ)-studies on Yb 172 and Yb 174
نویسندگان
چکیده
منابع مشابه
Low threshold Er/Yb
[email protected] An Erbium:Ytterbium codoped microcavity-based laser which is lithographically fabricated from sol-gel is demonstrated. Both single-mode and multimode lasing is observed in the C band (1550nm). The quality factor and pump threshold are experimentally determined for a series of erbium and ytterbium doping concentrations, verifying the interdependent relationship between the two dop...
متن کاملMulti - functional NaErF 4 : Yb
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متن کاملRoles for the Yb body components Armitage and Yb in primary piRNA biogenesis in Drosophila.
PIWI-interacting RNAs (piRNAs) protect genome integrity from transposons. In Drosophila ovarian somas, primary piRNAs are produced and loaded onto Piwi. Here, we describe roles for the cytoplasmic Yb body components Armitage and Yb in somatic primary piRNA biogenesis. Armitage binds to Piwi and is required for localizing Piwi into Yb bodies. Without Armitage or Yb, Piwi is freed from the piRNAs...
متن کامل1 Yb 3 + and Yb 3 + - Eu 3 + luminescent properties of the
The luminescence of Yb in the oxyborate Li2Lu5O4(BO3)3 is reported. At low temperature, in addition to the usual ytterbium infrared emission, this phosphor presents an emission in the ultraviolet (λmax= 345 nm) which corresponds to the transition from the charge transfer state (O-Yb) to the 4f levels of Yb. The temperature quenching Tq50% is equal to 120K. The infrared emission studied at room ...
متن کاملBlue upconversion emission of Tm–Yb in ZrO2 nanocrystals: Role of Yb ions
The effect of Yb ions on the blue upconversion (UPC) emission of Yb–Tm co-doped ZrO2 nanocrystals is reported. The blue (490 nm) UPC emission is due to G4– H6 transition of Tm 3+ and the pump power dependence of this UPC emission band are cubic indicating that three excitation photons are involved in the UPC process. An additional UPC emission band at 505 nm is observed when the Yb concentratio...
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ژورنال
عنوان ژورنال: Zeitschrift für Naturforschung A
سال: 1973
ISSN: 1865-7109,0932-0784
DOI: 10.1515/zna-1973-0212