Sol-Gel Synthesis of Rare-Earth-Doped Lanthanum Halides For Highly Efficient Optical Amplification

1997 ◽  
Author(s):  
John Ballato ◽  
Richard E. Riman ◽  
Elias Snitzer
Keyword(s):  
Rare Earth ◽  
Sol Gel ◽  
Optical Amplification ◽  
Highly Efficient ◽  
Sol Gel Synthesis ◽  
Rare Earth Doped

Sol-gel synthesis of rare-earth-doped fluoride glass thin films

1996 ◽  
Vol 11 (4) ◽  
pp. 841-849 ◽  
Author(s):  
John Ballato ◽  
Matthew Dejneka ◽  
Richard E. Riman ◽  
Elias Snitzer ◽  
Weimin Zhou
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Sol Gel ◽  
Fluoride Glass ◽  
Silicon Substrates ◽  
Fluorescence Studies ◽  
Glass Rods ◽  
Sol Gel Films ◽  
Sol Gel Synthesis ◽  
Rare Earth Doped

This paper describes ZBLA fluoride glass thin films produced via an inexpensive, low-temperature reactive atmosphere sol-gel approach. Luminescence from erbium at 1.55 μm has been observed in x-ray-amorphous doped films deposited on calcium fluoride, polyimide, sapphire, and silicon substrates. Fluorescence studies of the erbium 4S3/2 → 4I13/2 transition, a characteristic emission for a reduced phonon energy host, were conducted for both sol-gel-derived films and conventionally prepared glass rods. The peak intensity observed from the sol-gel films was blue-shifted by 16 nm with a FWHM value approximately half that measured for the melt-quenched rods. Excitation studies indicate that, unlike conventionally prepared glasses, sol-gel materials suffer from nonradiative relaxation of the 4S3/2 excited state to the 4I9/2 level, where subsequent radiative emission to the 4I15/2 ground state occurs. The proposed source of the quenching mechanism are remnant species inherent to the sol-gel process. While this causes the luminescence behavior of rare-earth-doped sol-gel-derived fluoride materials to be similar to oxide hosts, these remnant species modify the branching ratios, resultantly leading to a novel 824 nm emission when excited at 488 nm.

Rare-earth doped (Lu0.85Y0.15)2SiO5 nanocrystalline powders obtained by polymer assisted sol–gel synthesis

2010 ◽  
Vol 45 (3-6) ◽  
pp. 475-477 ◽  
Author(s):  
Željka Antić ◽  
Radenka Krsmanović ◽  
Milena Marinović-Cincović ◽  
Miodrag Mitrić ◽  
Miroslav D. Dramićanin
Keyword(s):  
Rare Earth ◽  
Sol Gel ◽  
Nanocrystalline Powders ◽  
Sol Gel Synthesis ◽  
Rare Earth Doped

Non-aqueous sol–gel synthesis of hybrid rare-earth-doped γ-Ga2O3nanoparticles with multiple organic–inorganic-ionic light-emission features

2015 ◽  
Vol 3 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Roberto Lorenzi ◽  
Alberto Paleari ◽  
Nikita V. Golubev ◽  
Elena S. Ignat'eva ◽  
Vladimir N. Sigaev ◽  
...  
Keyword(s):  
Rare Earth ◽  
Benzyl Alcohol ◽  
Blue Light ◽  
Light Emission ◽  
Sol Gel ◽  
Blue Light Emission ◽  
Capping Layer ◽  
Organic Capping ◽  
Sol Gel Synthesis ◽  
Rare Earth Doped

Pure and Eu-doped γ-Ga2O3nanopowders with an organic capping layer were obtained by a benzyl alcohol route. Photoluminescence experiments allowed assigning the strong blue light emission to an aromatic ketone derivative.

A Unique Approach to Characterization of Sol-Gel-Derived Rare-Earth-Doped Oxyfluoride Glass-Ceramics

2012 ◽  
Vol 96 (2) ◽  
pp. 476-480 ◽  
Author(s):  
Go Kawamura ◽  
Ryota Yoshimura ◽  
Kazunari Ota ◽  
Song-Yul Oh ◽  
Norio Hakiri ◽  
...  
Keyword(s):  
Rare Earth ◽  
Sol Gel ◽  
Glass Ceramics ◽  
Oxyfluoride Glass ◽  
Unique Approach ◽  
Rare Earth Doped

Structure and optical properties of rare earth doped Y2O3 waveguide films derived by sol–gel process

2004 ◽  
Vol 458 (1-2) ◽  
pp. 274-280 ◽  
Author(s):  
H. Guo ◽  
W. Zhang ◽  
L. Lou ◽  
A. Brioude ◽  
J. Mugnier
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Sol Gel ◽  
Sol Gel Process ◽  
Rare Earth Doped
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