TY - JOUR T1 - Up and Down Frequency-Conversion Properties of Eu3+ Doped Lead Fluorophosphate Nanoglass Ceramics TT - JF - ijop JO - ijop VL - 4 IS - 1 UR - http://ijop.ir/article-1-47-en.html Y1 - 2010 SP - 57 EP - 64 KW - Fluorophosphate glass KW - Frequency-conversion KW - Glass-ceramic KW - Nanocrystal KW - Photonics materials KW - Upconversion. N2 - Europium doped transparent lead fluorophosphate glass ceramics successfully were prepared with heat treatment of precourse glasses at temperature above glass transition (Tg). X-ray diffraction (XRD) experiment evidenced the formation of PbF2 nanocrystals in glassy matrix. The emission spectra investigation indicate that considerable amount of Eu3+ ions were trapped in crystalline phase, and therefore the efficient frequency-conversion was observed in glass ceramics samples. The investigated glass ceramics systems are potentially applicable as up and down frequency-conversion photonics materials. M3 ER -