Enhanced 20 μm emission and gain coefficient of transparent glass ceramic containing BaF_2: Ho^3+,Tm^3+ nanocrystals
نویسندگان
چکیده
منابع مشابه
Er3+-doped transparent glass ceramics containing micron-sized SrF2 crystals for 2.7 μm emissions
Er(3+)-doped transparent glass ceramics containing micron-sized SrF2 crystals were obtained by direct liquid-phase sintering of a mixture of SrF2 powders and precursor glass powders at 820 °C for 15 min. The appearance and microstructural evolution of the SrF2 crystals in the resulting glass ceramics were investigated using X-ray diffraction, field-emission scanning electron microscopy and tran...
متن کاملGlass-ceramic optical fiber containing Ba2TiSi2O8 nanocrystals for frequency conversion of lasers
A glass-ceramic optical fiber containing Ba2TiSi2O8 nanocrystals fabricated using a novel combination of the melt-in-tube method and successive heat treatment is reported for the first time. For the melt-in-tube method, fibers act as a precursor at the drawing temperature for which the cladding glass is softened while the core glass is melted. It is demonstrated experimentally that following he...
متن کاملComparative studies of the spectroscopic properties of Nd: YAG nanocrystals, transparent ceramic and single crystal
Detailed comparative spectroscopic studies of Nd doped YAG nanocrystals, transparent ceramic and single crystal have been performed. Although most of the radiative spectral properties of Nd are almost in good agreement between the three hosts, the non-radiative losses are significantly high in nanocrystals, which are attributed due to the presence of large amount of hydroxyl groups on the nanoc...
متن کاملinfluence of heat treatment on crystallization and transparency of glass-ceramics containing lithium-mica nanocrystals
in this study, the preparation of transparent glass-ceramics with lithium-mica nanocrystals by melting-quenching method was investigated. the effect of heat treatment time and temperature on the crystalline phases, microstructure and transparency of the samples were studied. in order to obtain a fine microstructure, an optimum condition for heat treatment has been found to be very important in ...
متن کاملRole of Yb3+ ions on enhanced ~2.9 μm emission from Ho3+ ions in low phonon oxide glass system
The foremost limitation of an oxide based crystal or glass host to demonstrate mid- infrared emissions is its high phonon energy. It is very difficult to obtain radiative mid-infrared emissions from these hosts which normally relax non-radiatively between closely spaced energy levels of dopant rare earth ions. In this study, an intense mid-infrared emission around 2.9 μm has been perceived from...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2009
ISSN: 1094-4087
DOI: 10.1364/oe.17.020952