scholarly journals Memorized polarization-dependent light scattering in rare-earth-ion-doped glass

2000 ◽  
Vol 77 (13) ◽  
pp. 1940-1942 ◽  
Author(s):  
Jianrong Qiu ◽  
P. G. Kazanski ◽  
Jinhai Si ◽  
K. Miura ◽  
T. Mitsuyu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Light Scattering ◽  
Rare Earth Ion ◽  
Doped Glass

Multilayer optical memory using femtosecond-laser induced fluorescence in rare-earth ion doped glass

2008 ◽  
Vol 93 (1) ◽  
pp. 215-218 ◽  
Author(s):  
Ki-Soo Lim ◽  
Jongho Shin ◽  
Kyungsik Jang ◽  
Sunkyun Lee ◽  
Douglas S. Hamilton
Keyword(s):  
Rare Earth ◽  
Femtosecond Laser ◽  
Optical Memory ◽  
Laser Induced Fluorescence ◽  
Rare Earth Ion ◽  
Doped Glass

Multifunctional Y203:Yb3+/Tm3+/Li+ Nanocrystals with Enhanced Near-Infrared to Near-Infrared Upconversion Photoluminescence

2011 ◽  
Vol 197-198 ◽  
pp. 168-173
Author(s):  
Dong Yu Li ◽  
Jun Li ◽  
Yu Xiao Wang ◽  
Yang Kun ◽  
Xue Ru Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Light Scattering ◽  
Optical Imaging ◽  
Near Infrared ◽  
Biological Imaging ◽  
High Contrast ◽  
Light Penetration ◽  
Rare Earth Ion ◽  
Biological Specimen ◽  
Pl Intensity

Rare earth ion-doped Y2O3nanoparticles are attractive for biological imaging applications due to their non-toxicity, resistance to photobleaching, and possibility for upconversion. Y2O3:Yb3+/Tm3+nanocrystals display photoluminescence (PL) with a peak at ~811nm if excited at ~980nm. This Near-Infrared to Near-Infrared (NIR-to-NIR) upconversion (UC) process provides deeper light penetration into biological specimen and results in high contrast optical imaging due to absence of an autofluorescence background and decreased light scattering. Here, we report that NIR-to-NIR UC PL intensity of Y2O3:Yb3+/Tm3+nanocrystals are enhanced by doping with different Tm3+ions and Li+ions concentration. When the Tm3+ions concentration reaches 0.25 mol%, the NIR-to-NIR UC PL intensity is the strongest. And the NIR-to-NIR UC PL intensity of Y2O3:5 mol % Yb3+ions, 0.25mol% Tm3+ions and 5mol% Li+ions is maximum, which is more that about 14 times than that of no doped Li+ions. This material may show promise for use as probes for biological imaging.

Optical and Luminescence Properties of Trivalent Rare Earth Ion (Sm3+, Dy3+, and Eu3+) doped Glass for Laser Gain Medium Development : A Review

2020 ◽  
Vol 1 (2) ◽  
pp. 1-4
Author(s):  
Lia Yuliantini ◽  
Mitra Djamal ◽  
Rahmat Hidayat ◽  
Jakrapong Kaewkhao
Keyword(s):  
Rare Earth ◽  
Raw Materials ◽  
Optical Gain ◽  
Gain Medium ◽  
Rare Earth Ions ◽  
Luminescence Properties ◽  
Rare Earth Ion ◽  
Laser Gain ◽  
Trivalent Rare Earth ◽  
Doped Glass

Abstract –Recently, development of laser gain medium has been more attractive to be investigated due to the laser application in human daily life. For example, laser is used for medical treatment, surgery, security system, cutting, spectroscopy characterization and sensor. Laser is produced by the system including pump source, resonator, and an optical gain medium. This paper will be focused in a gain medium based on trivalent rare earth ions (Ln3+) such as Dy3+, Sm3+, and Eu3+ doped glass. The gain medium is developed by melt and quenching technique. The raw materials are a powder that is melted at the glass transition temperature. Afterwards, the glass liquid is poured at stainless steel at room temperature and annealed for several hours. After the annealing process, the bulk glass is cut and polished for characterization. Physical, optical, and luminescence properties of the gain medium are analyzed and discussed in this paper. The CIE 1931 chromaticity diagram coordinate is calculated to define the proper coordinate of glass sample emission light. The previous research shows that Dy3+, Sm3+ and Eu3+ in glass system can emit white, orange, and reddish-orange excited by 388 nm, 403 nm and 393 nm, respectively. From the results, trivalent rare earth ion doped glass possesses high potential to be developed for laser gain medium material. Keywords: glass, laser, luminescence, optic, Ln3+

Theory of Raman light scattering in the many-sublattice exchange-noncollinear magnetsUO2,RMnO3, andNd2CuO4(R=rare-earth ion)

1995 ◽  
Vol 51 (22) ◽  
pp. 15898-15919 ◽  
Author(s):  
Yu. G. Pashkevich ◽  
V. L. Sobolev ◽  
S. A. Fedorov ◽  
A. V. Eremenko
Keyword(s):  
Rare Earth ◽  
Light Scattering ◽  
Rare Earth Ion ◽  
Raman Light Scattering ◽  
The Many

scholarly journals Structure, Luminescence, and Magnetic Properties of Crystalline Manganese Tungstate Doped with Rare Earth Ion

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3717
Author(s):  
Jae-Young Jung ◽  
Soung-Soo Yi ◽  
Dong-Hyun Hwang ◽  
Chang-Sik Son
Keyword(s):  
Magnetic Field ◽  
Rare Earth ◽  
Sintering Temperature ◽  
Luminescent Properties ◽  
Concentration Quenching ◽  
Rare Earth Ions ◽  
Precipitation Method ◽  
Rare Earth Ion ◽  
Co Precipitation ◽  
Quenching Phenomenon

The precursor prepared by co-precipitation method was sintered at various temperatures to synthesize crystalline manganese tungstate (MnWO4). Sintered MnWO4 showed the best crystallinity at a sintering temperature of 800 °C. Rare earth ion (Dysprosium; Dy3+) was added when preparing the precursor to enhance the magnetic and luminescent properties of crystalline MnWO4 based on these sintering temperature conditions. As the amount of rare earth ions was changed, the magnetic and luminescent characteristics were enhanced; however, after 0.1 mol.%, the luminescent characteristics decreased due to the concentration quenching phenomenon. In addition, a composite was prepared by mixing MnWO4 powder, with enhanced magnetism and luminescence properties due to the addition of dysprosium, with epoxy. To one of the two prepared composites a magnetic field was applied to induce alignment of the MnWO4 particles. Aligned particles showed stronger luminescence than the composite sample prepared with unsorted particles. As a result of this, it was suggested that it can be used as phosphor and a photosensitizer by utilizing the magnetic and luminescent properties of the synthesized MnWO4 powder with the addition of rare earth ions.

scholarly journals Tb3+-doped fluorescent glass for biology

2021 ◽  
Vol 7 (2) ◽  
pp. eabd2529
Author(s):  
Kazuki Okamoto ◽  
Teppei Ebina ◽  
Naoki Fujii ◽  
Kuniaki Konishi ◽  
Yu Sato ◽  
...  
Keyword(s):  
Single Cell ◽  
Fluorescent Protein ◽  
Biological Research ◽  
Optical Investigation ◽  
Patch Clamp Recording ◽  
Rare Earth Ion ◽  
Cell Transcriptome ◽  
Green Fluorescent ◽  
Doped Glass

Optical investigation and manipulation constitute the core of biological experiments. Here, we introduce a new borosilicate glass material that contains the rare-earth ion terbium(III) (Tb3+), which emits green fluorescence upon blue light excitation, similar to green fluorescent protein (GFP), and thus is widely compatible with conventional biological research environments. Micropipettes made of Tb3+-doped glass allowed us to target GFP-labeled cells for single-cell electroporation, single-cell transcriptome analysis (Patch-seq), and patch-clamp recording under real-time fluorescence microscopic control. The glass also exhibited potent third harmonic generation upon infrared laser excitation and was usable for online optical targeting of fluorescently labeled neurons in the in vivo neocortex. Thus, Tb3+-doped glass simplifies many procedures in biological experiments.

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