Synthesized rare-earth doped oxide glasses for nonlinear optics

2002 ◽  
Vol 92 (5) ◽  
pp. 2260-2268 ◽  
Author(s):  
I. V. Kityk ◽  
J. Wasylak ◽  
S. Benet ◽  
D. Dorosz ◽  
J. Kucharski ◽  
...  
Keyword(s):  
Rare Earth ◽  
Nonlinear Optics ◽  
Oxide Glasses ◽  
Rare Earth Doped ◽  
Doped Oxide

NON-LINEAR OPTICAL EFFECTS IN THE RARE-EARTH DOPED OXIDE GLASSES

2002 ◽  
Vol 29 (2-3) ◽  
pp. 99-108 ◽  
Author(s):  
WASYLAK J. ◽  
DOROSZ D. ◽  
IMIOLEK W. ◽  
KRASOWSKI J. ◽  
I. V. KITYK ◽  
...  
Keyword(s):  
Rare Earth ◽  
Oxide Glasses ◽  
Optical Effects ◽  
Non Linear ◽  
Linear Optical ◽  
Rare Earth Doped ◽  
Doped Oxide ◽  
The Rare Earth

Integrated optical amplifiers based on rare-earth doped oxide glasses

2003 ◽  
Author(s):  
Giancarlo C. Righini ◽  
Massimo Brenci ◽  
Guaktiero N. Conti ◽  
Stefano Pelli ◽  
Maurizio Ferrari ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optical Amplifiers ◽  
Oxide Glasses ◽  
Integrated Optical ◽  
Rare Earth Doped ◽  
Doped Oxide

Light Emission Properties and Biological Applications of Lanthanide Doped Oxide Nanoparticles

2007 ◽  
Vol 1064 ◽  
Author(s):  
Genevieve Mialon ◽  
Domitille Giaume ◽  
Melanie Moreau ◽  
Didier Casanova ◽  
Thanh-Liem Nguyen ◽  
...  
Keyword(s):  
Rare Earth ◽  
Quantum Yield ◽  
Bulk Material ◽  
General Scheme ◽  
Hydroxyl Groups ◽  
Emission Properties ◽  
Biological Probes ◽  
Emission Lifetime ◽  
Rare Earth Doped ◽  
Doped Oxide

ABSTRACTRare-earth doped oxides as bulk materials are well known for their numerous applications in light emitting devices. Emission properties of nanoparticles, in association with their small size, open the way to new applications such as the elaboration of transparent luminescent devices or new biological labels. The key issue for such applications is the control of the surface state of the particles in order to preserve their dispersion state, to guarantee a strong emission and/or ensure strong interactions with specific target sites. Our work in this field mainly concerns yttrium vanadate particles (YVO4:Ln with Ln=Eu, Dy and Yb/Er) that are obtained as aqueous suspensions through a simple reaction of coprecipitation [1]. As compared to the bulk material, these particles (10-40 nm in diameter) exhibit the characteristic emission from the lanthanide dopant but with a lower efficiency (quantum yield of 15% and emission lifetime of 0.7 ms). The first part of our work is devoted to the improvement of the emission properties of particles. Our results show that the emission process is altered either by surface hydroxyl groups or by the poor cristallinity of the particles. We show that large improvement can be obtained following an original process which allows recovering the particles as colloidal dispersions after their thermal treatment at 1000°C. In the case of Eu3+ doped particles, quantum yield and emission lifetime were increased up to 40% and 0.8 ms respectively without notable increase of particle size. Moreover, the emission spectrum, either from colloidal suspensions or from single particles fits almost perfectly to the one from the bulk material. The second part of our work is devoted to the surface derivatization of the particles for applications as biological probes [2]. We chose a general scheme involving the coating of the nanoparticles with a thin layer of amino-silane. This process was chosen in order to allow further versatile grafting reactions trough the surface amino groups. This strategy will be detailed in the case of the coupling between our particles and a protein through the use of a homo-bifunctional cross-linker. The quantification of the number of attached proteins was achieved using dual-color microscopy and fluorescently-tagged proteins, by observing the step-like photobleaching of the organic fluorescent tag. The observation of labelled toxins interacting with living cells shows the high potentiality of rare-earth-doped oxide particles as new biological probes.

Luminescent Properties of Rare Earth Doped AlF3-Based Glasses

1991 ◽  
Vol 244 ◽  
Author(s):  
L. R. Copeland ◽  
W. A. Reed ◽  
M. R. Shahriari ◽  
T. Iqbal ◽  
P. Hajcak ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optical Fibers ◽  
Luminescent Properties ◽  
Rare Earth Ions ◽  
Ion Concentration ◽  
Fluoride Glass ◽  
Oxide Glasses ◽  
Low Loss ◽  
Rare Earth Ion ◽  
Rare Earth Doped

ABSTRACTRare earth ions can easily be incorporated into fluoride glasses in moderate to large concentrations and, due to their low phonon energy, these glasses appear to have many advantages over oxide glasses as hosts for rare earth ions used in optical amplifiers and lasers. We have therefore investigated the optical properties of Pr3+, Pr3+/Yb3+ and Pr3+/Yb3+/Lu3+ doped bulk AIF3-based glass samples as a function of rare earth ion concentration. We find that the addition of 2 wt% of Yb increases the fluorescence of Pr3+ at 1.32 μm by a factor of 35 when excited with 488 nm radiation. The fluorescence intensity and excited state lifetimes are found to be comparable to those measured for Pr in a ZBLAN host. Since it has also been demonstrated that optical fibers drawn from AIF3-based glasses exhibit relatively low loss (< 0.05 dB/m) and posses superior chemical durability compared to other fluotide glasses, it is possible that AIF3 glasses may become the fluoride glass of choice for practical fiber laser and amplifier applications.

Enhancing photovoltaic performance of dye-sensitized solar cell by rare-earth doped oxide of Lu2O3:(Tm3+, Yb3+)

2011 ◽  
Vol 56 (14) ◽  
pp. 4980-4984 ◽  
Author(s):  
Qingbei Li ◽  
Jianming Lin ◽  
Jihuai Wu ◽  
Zhang Lan ◽  
Yue Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solar Cell ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Rare Earth Doped ◽  
Doped Oxide

Luminescence properties of rare-earth doped oxide materials

2020 ◽  
pp. 345-364 ◽  
Author(s):  
Vinod Kumar ◽  
S.P. Tiwari ◽  
O.M. Ntwaeaborwa ◽  
Hendrik C. Swart
Keyword(s):  
Rare Earth ◽  
Luminescence Properties ◽  
Oxide Materials ◽  
Rare Earth Doped ◽  
Doped Oxide

Engineering rare-earth-doped heavy metal oxide glasses for 2-5 μm lasers

2010 ◽  
Author(s):  
Billy D. O. Richards ◽  
Animesh Jha ◽  
Vitaly Dorofeev ◽  
Tariq Manzur
Keyword(s):  
Heavy Metal ◽  
Rare Earth ◽  
Metal Oxide ◽  
Oxide Glasses ◽  
Rare Earth Doped

Rare-earth-doped lanthanum–gallium–sulfide–oxide glasses as new optically operated materials

2007 ◽  
Vol 9 (4) ◽  
pp. 315-319 ◽  
Author(s):  
B Claudet ◽  
V V Sokolov ◽  
B A Kolesov ◽  
L A Sheludyakova ◽  
I Yu Filatova
Keyword(s):  
Rare Earth ◽  
Oxide Glasses ◽  
Gallium Sulfide ◽  
Rare Earth Doped
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