scholarly journals Research Progress of Rare-earth Doped Laser Crystals in Visible Region

2019 ◽  
Vol 34 (6) ◽  
pp. 573 ◽  
Author(s):  
Na LI ◽  
Bin LIU ◽  
Jiao-Jiao SHI ◽  
Yan-Yan XUE ◽  
Heng-Yu ZHAO ◽  
...  
Keyword(s):  
Rare Earth ◽  
Visible Region ◽  
Research Progress ◽  
Laser Crystals ◽  
Rare Earth Doped

Engineering the Design of Brightly-Emitting Luminescent Nanostructured Photonic Composite Systems

2013 ◽  
Vol 66 (9) ◽  
pp. 1008 ◽  
Author(s):  
Mei Chee Tan ◽  
Dominik J. Naczynski ◽  
Prabhas V. Moghe ◽  
Richard E. Riman
Keyword(s):  
Rare Earth ◽  
Optical Waveguides ◽  
Impact Resistance ◽  
Synthesis Method ◽  
Research Progress ◽  
Design And Synthesis ◽  
Composite Systems ◽  
Rare Earth Doped

Rare-earth doped infrared emitting composites have extensive applications in integrated optical devices such as fibre amplifiers and waveguides for telecommunications, remote sensing, and optoelectronics. In addition, recent advancements in infrared optical imaging systems have expanded the biomedical applications for infrared-emitting composites in diagnosis and imaging of living tissue systems both in vitro and in vivo. Composite systems combine the advantages of polymers (light weight, flexibility, good impact resistance, improved biomedical compatibility, and excellent processability) and inorganic phosphor host materials (low phonon energy, intense emissions, chemical durability, and high thermal stability). This paper provides a brief review of our research progress in the design and synthesis of luminescent photonic nanocomposite systems comprised of rare-earth doped particulates dispersed in a continuous polymeric matrix. The design of brightly-emitting rare-earth doped materials and the influence of host and dopant chemistries on the emission properties are discussed. Methods used to assess and measure the phosphors’ performance are also evaluated in this work. This paper will also examine the solvothermal synthesis method used to control the physical and chemical characteristics of the rare-earth doped particles, and how these characteristics impact the infrared optical properties. Also presented here are recent advances reported with luminescent nanocomposite systems fabricated for optical waveguides and biomedical imaging.

Photoconductivity and Electro-Motive Force Study of Rare Earth Doped YSGG Laser Crystals

1996 ◽  
Author(s):  
M. A. Noginov ◽  
N. Kukhtarev ◽  
N. E. Noginova ◽  
H. J. Caulfield ◽  
P. Venkateswarlu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Motive Force ◽  
Ysgg Laser ◽  
Laser Crystals ◽  
Rare Earth Doped ◽  
Electro Motive Force

Investigation on Rare Earth Doped Nonlinear Optical Potassium Hydrogen Phthalate (KHP) Single Crystals

2012 ◽  
Vol 584 ◽  
pp. 56-59 ◽  
Author(s):  
S. Sudhahar ◽  
M. Krishna Kumar ◽  
R. Mohan Kumar
Keyword(s):  
Rare Earth ◽  
Single Crystals ◽  
Nonlinear Optical ◽  
Visible Region ◽  
Optical Transmittance ◽  
Spectral Studies ◽  
Potassium Hydrogen Phthalate ◽  
Hydrogen Phthalate ◽  
Potassium Hydrogen ◽  
Rare Earth Doped

Rare earth doped potassium hydrogen phthalate (KHP) single crystals have been grown by slow evaporation technique. Single and powder X-ray diffraction analysis confirms the structural and crystallinity of grown crystals. The functional groups of pure and doped KAP crystals have been identified by FTIR spectral studies. UV-Vis studies explore the optical transmittance of the grown crystals in the entire visible region. Nonlinear optical property of the pure and doped KHP crystals was confirmed by Kurtz-Perry powder test.

Research Progress of Rare Earth Doped Fluorophosphate Glass Fiber for 2-3 μm Fiber Laser Application

2019 ◽  
Vol 56 (17) ◽  
pp. 170608
Author(s):  
田颖 Ying Tian ◽  
徐时清 Shiqing Xu ◽  
黄飞飞 Feifei Huang ◽  
张军杰 Junjie Zhang
Keyword(s):  
Rare Earth ◽  
Fiber Laser ◽  
Glass Fiber ◽  
Research Progress ◽  
Laser Application ◽  
Fluorophosphate Glass ◽  
Rare Earth Doped

Rare-Earth Doped Silicon-Rich Silica: Evidence for Energy Transfer between Silicon Microclusters and Rare-Earth Ions

1994 ◽  
Vol 358 ◽  
Author(s):  
A.J. Kenyon ◽  
P.F. Trwoga ◽  
M. Federighi ◽  
C.W. Pitt
Keyword(s):  
Rare Earth ◽  
Visible Region ◽  
Rare Earth Ions ◽  
Excitation Wavelength ◽  
Rare Earth Ion ◽  
Absorption Bands ◽  
Strong Luminescence ◽  
Doped Silicon ◽  
Rare Earth Doped ◽  
The Rare Earth

ABSTRACTWe report the fabrication of rare-earth doped silicon-rich silica thin films by PECVD. The films exhibit absorption edges in the visible region of the optical spectrum consistent with the presence of silicon microclusters. Weak visible photoluminescence due to silicon microclusters is observed. In addition, strong luminescence from the rare-earth ion is obtained even when excited away from characteristic absorption bands; indeed, the luminescence intensity is largely independent of excitation wavelength below 514 nm. We ascribe this to excitation of silicon microclusters followed by an efficient transfer of energy to the rare-earth ions.The very broad absorption of this material opens up the possibility for flashlamp-pumped optoelectronic devices. In addition, we report the fabrication of silicon-rich silica films by PECVD. We show that the optical properties of these films are consistent with the presence of silicon microclusters and show absorption spectra similar to those of the rare-earth doped silicon-rich silica samples. This supports the hypothesis that the principal absorbing species in the rare-earth doped films is microclustered silicon

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