Academic literature on the topic 'Y2O3:Eu3+'

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Journal articles on the topic "Y2O3:Eu3+"

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Ban, Se-Min, Mahboob Ullah, Kyeong Youl Jung, et al. "Y2O3:Eu3+ Nanophosphor-Coated Mica or TiO2/Mica as Red-Emitting Pearl Pigment: Coating Factors, Luminescent and Gloss Properties." Applied Sciences 11, no. 10 (2021): 4365. http://dx.doi.org/10.3390/app11104365.

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Red-emitted Y2O3:Eu3+ nanophosphor coated on a mica flake (Y2O3:Eu@MF) or on TiO2 having a rutile crystalline mica flake (Y2O3:Eu@TMF) has been prepared by an electrostatic interaction with the wet-coating method for the purpose of a pigment with luminescent and gloss properties. Aggregated Y2O3:Eu3+, prepared by the template method, was dispersed into nanosol by a controlled bead-mill wet process. The (+) charged Y2O3:Eu3+ nanosol was effectively coated on the (-) charged mica flake (MF) or the TiO2/mica flake (TMF) by an electrostatic interaction between the Y2O3:Eu3+ nanoparticles and MF or
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Chen, Honggang, Mingzhong Wang, Yao Qi, Yongbo Li, and Xiaopeng Zhao. "Relationship between the TC of Smart Meta-Superconductor Bi(Pb)SrCaCuO and Inhomogeneous Phase Content." Nanomaterials 11, no. 5 (2021): 1061. http://dx.doi.org/10.3390/nano11051061.

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A smart meta-superconductor Bi(Pb)SrCaCuO (B(P)SCCO) may increase the critical transition temperature (TC) of B(P)SCCO by electroluminescence (EL) energy injection of inhomogeneous phases. However, the increase amplitude ΔTC (ΔTC=TC−TC,pure) of TC is relatively small. In this study, a smart meta-superconductor B(P)SCCO with different matrix sizes was designed. Three kinds of raw materials with different particle sizes were used, and different series of Y2O3:Sm3+, Y2O3, Y2O3:Eu3+, and Y2O3:Eu3++Ag-doped samples and pure B(P)SCCO were prepared. Results indicated that the TC of the Y2O3 or Y2O3:S
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Anh, Tran Kim, Pham Thi Minh Chau, Nguyen Thi Quy Hai, and Le Quoc Minh. "Cathodo-, Thermo-, and Photoluminescent Properties of Nano-Y2O3:Eu3+Fabricated by Controlled Combustion Synthesis." Journal of Nanomaterials 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/637124.

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Y2O3:Eu3+nanophosphors were prepared through combustion reaction under controlled condition of the fuel ethylenediaminetetraacetic acid (EDTA-Na2) and in the temperature range from 350 to 700°C. The products were characterized by X-ray diffraction (XRD), field emission scattering electron microscopy (FESEM), and energy dispersive spectroscopy (EDS). The results showed that Y2O3:Eu3+nanoparticles were successfully synthesized by combustion method at low temperature and in short reaction time. The light-emitting ability of Y2O3:Eu3+nanoparticles upon the electron excitation has been studied at t
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Li, Su Wen, and Shu Guang Ju. "Fabrication and Luminescence Properties of Y2O3:Eu3+/AAO Composite." Advanced Materials Research 583 (October 2012): 199–202. http://dx.doi.org/10.4028/www.scientific.net/amr.583.199.

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Uniform Eu3+ doped Y2O3 nanowires with diameters of 50 nm in the anodic aluminum oxide template (AAO) have been fabricated. The Y2O3:Eu3+/AAO composite nanowires were characterized by using powder X-ray diffraction (XRD), scanning electron microscope (SEM) and spectrofluorometer techniques. The results indicate that with the increasing annealing temperature and time the excitation band of Eu3+ in Y2O3: Eu3+/AAO composite blue shifted, the intensity ratio of 5D0-7F2 to 5D0-7F1 decreased and the lifetime of the Eu3+ ions in composite became longer. In the composite annealed at 1000 °C, two spect
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Fang, Yueping, Li Su, Pingfang Tao, Xiaosong Zhou, and An-Wu Xu. "Fabrication of Photoluminescent S Doped Y2O3:Eu3 + Nanobelts." Journal of Nanoscience and Nanotechnology 8, no. 6 (2008): 3164–70. http://dx.doi.org/10.1166/jnn.2008.071.

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We have successfully fabricated the S doped Y(OH)3 nanobelts with 15–30 μm in length and 50–300 nm in width and S doped Y(OH)3:Eu3+ nanobelts with 4–15 μm in length and 80–500 nm in width (most between 100 and 200 nm) via a similar process for preparation of Y(OH)3 nanotubes. Photoluminescent (PL) nanobelts of S doped Y2O3:Eu3+ were obtained through dehydration of the S doped Y(OH)3:Eu3+ nanobelts at 450 °C in N2. The PL properties of the S doped Y2O3:Eu3+ nanobelts have been studied and evidenced that we have successfully synthesized functional S doped Y2O3:Eu3+ nanobelts with interesting pho
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Luo, Lijun, Fenfen Hu, Li Xiong, Xiaofan Li, Meili Zhou, and Zhengliang Wang. "Luminescent Properties of Y2O3:Eu3+Nanocrystals Prepared by Molten Salt Synthesis." Journal of Nanomaterials 2013 (2013): 1–4. http://dx.doi.org/10.1155/2013/952623.

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A series of red phosphors Y2O3:Eu3+were prepared by the molten salt method with different surfactants. Their structures, morphologies, and the photoluminescent properties were investigated at room temperature. The particles size of Y2O3:Eu3+can be controlled by adjusting the kinds of surfactants. The phosphor Y2O3:Eu3+prepared with NP-10 [polyoxyethylene (10) nonyl phenyl ether] shows regular morphology and higher crystallinity, and its average particle size is about 200 nm. Bright red light can be observed by naked eyes from the red phosphor under 254 nm excitation.
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Alcantar Mendoza, Alan Daniel, Felipe de Jesús Carrillo Romo, Antonieta García Murillo, Manuela Diaz Cruz, and María del Rosario González García. "Antenna effect of 2-thenoyltrifluoroacetone (TTA) on the luminescence of Y<sub>2</sub>O<sub>3</sub> co-doped with Eu<sup>3+</sup>;Tb<sup>3+</sup>." Superficies y Vacío 38 (May 20, 2025): 250501. https://doi.org/10.47566/2025_syv38_1-250501.

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Y2O3 gels co-doped with lanthanide ions (Ln3+) were synthesized based on the sol-gel process. Eu3+ was used in proportions of 2, 4, and 8 mol% and Tb3+ at a low and constant concentration of 0.075 mol% (Y2O3:Eu3+;Tb3+). The gels were subjected to supercritical drying (aerogel) at 73 bar and 34 °C and to thermal treatment at 800 °C to obtain crystalline materials (crystallized aerogels). Subsequently, each sample was sensitized in a novel way with 9 µmol of the compound 2-thenoyltrifluoroacetone (TTA) -- Y2O3:Eu3+;Tb3+/TTA, to provide an antenna effect in order to focus the morphological, struc
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Yu, Hongquan, Hongwei Song, Guohui Pan, et al. "Preparation and Luminescent Properties of Polymer Fibers Containing Y2O3:Eu Nanoparticles by Electrospinning." Journal of Nanoscience and Nanotechnology 8, no. 11 (2008): 6017–22. http://dx.doi.org/10.1166/jnn.2008.480.

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In this paper, composite fibers of polyvinylpyrrolidone (PVP) and Y2O3:Eu3+ nanocrytals were prepared by electrospinning and characterized by electron microscope, Fourier transform infrared spectra (FT-IR) and X-ray diffraction (XRD). The composite fibers are in random orientation and with average diameter of ∼300 nm and length up to several ten micrometers. The luminescent properties were investigated and compared with the pure Y2O3:Eu3+ nanocrystals. Due to certain weak interactions between nanocrystals and PVP matrix, charge transfer band in the excitation spectra show slightly red shift fo
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Liu, T. G., C. S. Chen, X. D. Xie, and C. Y. Qiu. "Preparation and Luminescence Property of Multi-Walled Carbon Nanotubes/Europium Doped Yttria Oxide Hybrids." Advanced Materials Research 535-537 (June 2012): 305–9. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.305.

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In order to improve their optical property, multi-walled carbon nanotubes (MWNTs) were decorated with europium doped yttria oxide (Y2O3:Eu3+) nanoparticles by co-deposition method, and the products were examined by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and luminescence spectroscopy. Experimental results illuminate that MWNTs can be decorated by the Y2O3:Eu3+ nanoparticles at annealed temperature of 600 and 750°C, respectively. The optical property of MWNTs/Y2O3:Eu3+ nanohybrids shows the most excellent when the MWNTs concentratin is
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Chen, Baojiu, Qingyu Meng, Haiyang Zhong, et al. "Quantum Efficiency and Surface Passivation Effect of Nanocrystalline Y2O3:Eu3+." Journal of Nanoscience and Nanotechnology 8, no. 3 (2008): 1165–69. http://dx.doi.org/10.1166/jnn.2008.18165.

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Cubic nano-crystalline Y2O3:Eu3+ powders with different grain sizes were produced by chemical auto-combustion, and their structure, morphology, and fluorescent spectra were characterized. The quantum efficiency of the 5D0 level of Eu3+ was estimated, taking into account the energy transfer between Eu3+ ions located at C2 and S6 sites. Ag+ ions were introduced into the synthesis of the nanosized particles to modify the surface defects, resulting in increased emission intensity. These results indicated that the nanosized Y2O3:Eu3+ exhibits maximum internal quantum efficiency close to 90% after A
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Dissertations / Theses on the topic "Y2O3:Eu3+"

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Williams, Diane Keith. "Particle Size Dependence on the Luminescence Spectra of Eu3+:Y2O3 and Eu3+:CaO." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/29719.

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Since the Eu3+ ion can occupy different cation sites in a host material, it can serve as a useful probe of nanocrystalline structures to gain more insight into the structural changes that can occur when the particle size is reduced from the bulk to nanometer regime. The use of laser spectroscopy to probe two nanocrystalline structures, Eu3+:Y2O3 and Eu3+:CaO, was investigated. The nanocrystalline structures were prepared by the laser-vaporization-gas-phase condensation of the bulk oxides. The particle size distribution and dominant particle diameters of the nanocrystals were determined by
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Krauser, Maike de Oliveira [UNESP]. "Efeito da microestrutura na cintilação de nanopartículas de Y2O3 : EU3+." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/97927.

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Made available in DSpace on 2014-06-11T19:29:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-02-25Bitstream added on 2014-06-13T19:38:16Z : No. of bitstreams: 1 krauser_mo_me_araiq.pdf: 1145204 bytes, checksum: 683766857936c0e93d62901593ab5343 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Neste trabalho avaliou-se o efeito da microestrutura na cintilação de nanopartículas de Y2O3:Eu3+. Neste contexto utilizam-se dois métodos de síntese, o método Pechini, que apresenta matéria orgânica remanescente de síntese, assim como, aglomerados micrométricos c
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Krauser, Maike de Oliveira. "Efeito da microestrutura na cintilação de nanopartículas de Y2O3 : EU3+ /." Araraquara : [s.n.], 2011. http://hdl.handle.net/11449/97927.

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Resumo: Neste trabalho avaliou-se o efeito da microestrutura na cintilação de nanopartículas de Y2O3:Eu3+. Neste contexto utilizam-se dois métodos de síntese, o método Pechini, que apresenta matéria orgânica remanescente de síntese, assim como, aglomerados micrométricos constituídos de partículas nanométricas com variação da forma e tamanho. Utilizando o método de precipitação homogênea modificado, estudou-se a influência de partículas com estreita distribuição de tamanho e morfologia esférica. A estrutura apresenta simetria cubica (grupo espacial Ia3) e com os estudos espectroscópicos caracte
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Nuñez, Patrícia Ysabel Poma. "Sínteses e caracterizações óptica e estrutural de nanopartículas de LaF3:Yb3+/Ho3+e LaF3:Yb3+/Tm3+ e cerâmicas transparentes de Y2O3:Eu3+e Y2O3:Tm3+." Universidade Federal de Alagoas, 2015. http://www.repositorio.ufal.br/handle/riufal/1703.

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Rare-earth ions co-doped lanthanum fluoride (LaF3) nanoparticles (NPs) were synthesized and the effect of different annealing temperatures investigated. We have also investigated the thermo-optical properties of Tm3+ and Eu3+ doped Y2O3 transparent ceramics. The LaF3:Yb3+/Ho3+ and LaF3:Yb3+/Tm3+ NPs were treated thermally by 3 hs at 300, 500, 700, and 900 °C and then characterized with respect to crystalline structures, sizes, shapes, presence of other crystalline phases and luminescent properties. From the experimental results, optimization of optical and structural properties were obtained f
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Saltoun, Kelly Yecheskel. "An investigation of the synthesis and properties of nano crystalline Y2O3:Eu3+ (prepared using micelle-based precursors)." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/8759.

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The work described in this thesis was aimed at understanding the reactions taking place on heating Y2O3:Eu3+ phosphor precursors in the nano particle size regime. Herein combustion syntheses to prepare nanometer sized crystallites of cubic Y2O3:Eu3+ using precursors containing sacrificial long chain alkylammonium cations (the fuel) are reported. Using this method it proved possible to produce cubic Y2O3:Eu3+ crystallites in the 20-70nm size range. The presence of CO2 bands in the infra red spectra of the surface of the cubic Y2O3:Eu3+ crystallites are also reported. These bands are identical i
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TORRES, GOMEZ NAYELY 411770, and GOMEZ NAYELY TORRES. "Nanoestructuras híbridas fe3o4-ag-y2o3:eu3+: evaluación de sus propiedades físicas y su posible aplicación en Sensado." Tesis de doctorado, Universidad Autónoma del Estado de México, 2017. http://hdl.handle.net/20.500.11799/67870.

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Tesis Doctoral del Posgrado en Ciencia de Materiales<br>Se desarrolló un material híbrido a partir de estructuras unidimensionales (1D) de óxido de itrio dopado con varias concentraciones de europio (Y2O3:Eu3+), decoradas con magnetita (Fe3O4) y plata (Ag) nanoestructurada, utilizando un método de síntesis hidrotermal. Cada uno de los materiales se sintetizó por separado y se caracterizó por diferentes técnicas; espectroscopia Infrarroja (IR), espectroscopia Raman (Rm), espectroscopia de fluorescencia (PL), difracción de rayos X (XRD), microscopía electrónica de barrido (SEM), espectroscopi
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Corral, Jessica Olga. "Preparation of rare-earth (Eu3+, Tb3+, and Yb3+) doped Y2O3 luminescent ceramics by the use of reverse micelles." abstract and full text PDF (free order & download UNR users only), 2004. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1434067.

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Joffin, Nicolas. "Synthèse par pyrolyse d'aérosol et caractérisation de luminophores : Y2O3:Eu3+ et An2SiO4:Mn2+ pour application dans les panneaux à plasma." Toulouse, INPT, 2004. http://www.theses.fr/2004INPT012G.

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Cette thèse a pour objet la synthèse par pyrolyse d'aérosol et l'optimisation des luminophores rouge et vert : Y2O3:Eu3+ et An2SiO4:Mn2+ pour l'application panneaux à plasma. Nous avons conçu et réalisé un prototype industriel de pyrolyse d'aérosol pouvant produire jusqu'à 300g/j. Parallèlement à l'échelle du laboratoire nous avons montré qu'il était possible de préparer le luminophore rouge avec des caractéristiques équivalentes au luminophore commercial, tout en interprétant les variations des rendements de luminescence sous différentes excitations en fonction de la micro et macrostructure d
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Shinohara, Gabriel Mamoru Marques. "Influência do agente complexante nas propriedades estruturais e fotoluminescentes do luminóforo vermelho nanoestruturado Y2O3:Eu3+ via método Pechini modificado monitorado por ferramentas de quimiometria /." Araraquara, 2016. http://hdl.handle.net/11449/143769.

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Orientador: Ana Maria Pires<br>Banca: Marian Rosaly Davolos<br>Banca: Maria Aparecida Zaghete Bertochi<br>Banca: Edenir Rodrigues Pereira Filho<br>Banca: Diogo Paschoalini Volanti<br>Resumo: Neste trabalho investigou-se a influência da concentração dos agentes complexantes etilenoglicol (EG) e sorbitol (SB) nas propriedades estruturais e fotoluminescentes do luminóforo Y2O3:Eu3+ (2 mol%) obtido pelo método Pechini modificado. A quimiometria, em especial, planejamento de experimentos (Design of Experiments - DOE), foi aplicada para planejar a proporção dos precursores dos luminóforos. Todos os
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Shinohara, Gabriel Mamoru Marques [UNESP]. "Influência do agente complexante nas propriedades estruturais e fotoluminescentes do luminóforo vermelho nanoestruturado Y2O3:Eu3+ via método Pechini modificado monitorado por ferramentas de quimiometria." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/143769.

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Submitted by Gabriel Mamoru Marques Shinohara (shinohara@fct.unesp.br) on 2016-09-01T07:03:59Z No. of bitstreams: 1 Tese_Doutorado_Gabriel_Mamoru_Marques_Shinohara.pdf: 7611898 bytes, checksum: 7047b413755e309ae225c6adc00005a2 (MD5)<br>Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-09-02T13:56:07Z (GMT) No. of bitstreams: 1 shinohara_gmm_dr_araiq_par.pdf: 5169602 bytes, checksum: e9ff84ff42bb20906dae94562a15b2a6 (MD5)<br>Made available in DSpace on 2016-09-02T13:56:07Z (GMT). No. of bitstreams: 1 shinohara_gmm_dr_araiq_par.pdf: 5169602 bytes, c
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Book chapters on the topic "Y2O3:Eu3+"

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Kuzmann, E., A. Vértes, G. Bohus, V. Hornok, A. Oszkó, and I. Dékány. "151Eu Mössbauer study of luminescent Y2O3:Eu3 + core-shell nanoparticles." In ISIAME 2012. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-6491-0_24.

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Khale, Monika, Anusha Upadhya, Sapna Raghuwashi, Prachi Tadge, and Sudeshna Ray. "Solution Synthesis, Characterization, Photoluminescence and Afterglow Studies of Y2O3:Eu3+, Ho3+ Phosphor." In Engineering, Science, and Sustainability. CRC Press, 2023. http://dx.doi.org/10.4324/9781003388982-18.

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van Schaik, W. "The Influence of Impurities on the Quantum Yield of Y2O3: 3%Eu3+." In Optical Properties of Excited States in Solids. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3044-2_26.

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Concas, G., F. Congiu, G. Spano, M. Bettinelli, and A. Speghini. "Investigation of Eu3+ Site Occupancy and Eu-O Covalency in Nanocrystalline Y2O3 by Mössbauer Spectroscopy." In Hyperfine Interactions (C). Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0281-3_12.

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Conference papers on the topic "Y2O3:Eu3+"

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Gangrskaia, Elizaveta, Alessandra Bellissimo, Valentina Shumakova, et al. "Spatially and Spectrally Selective Excitation of Magnetic Dipole Transitions in Eu3+ Doped Yttrium Oxide." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jtu2a.132.

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Combining Stimulated Raman Scattering and spectral focusing, we generate narrowband tunable pulses for selective excitation of electric or magnetic dipole transitions in FIB-fabricated Eu3+Y2O3 nanostructures. Spatial electivity is enhanced by implementing azimuthally polarized beams.
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Shivaramu, N. J., B. N. Lakshminarasappa, and Fouran Singh. "Photoluminescence studies of gamma irradiated Y2O3:Eu3+ nanophosphor." In DAE SOLID STATE PHYSICS SYMPOSIUM 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4980368.

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Bartholomew, John G., Karmel de Oliveira Lima, Alban Ferrier, and Philippe Goldner. "Toward bulk crystal coherence times in Eu3+:Y2O3 nanocrystals." In CLEO: QELS_Fundamental Science. OSA, 2016. http://dx.doi.org/10.1364/cleo_qels.2016.fm4c.3.

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Gangrskaia, Elizaveta, Alessandra Bellissimo, Valentina Shumakova, et al. "Spectrally Selective Excitation of Electric Dipole and Magnetic Dipole Transitions in Eu3+Y2O3 Nanostructures." In Compact EUV & X-ray Light Sources. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/euvxray.2024.jtu4a.3.

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Implementing Stimulated Raman Scattering in a hollow-core fiber and spectral focusing in a long nonlinear crystal, we generate narrowband tunable ultrafast pulses for selective excitation of electric or magnetic dipole transitions in a FIB-fabricated Eu3+Y2O3 nanostructure.
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Deng, Bin, Haiying Huang, and Ruijin Yu. "Preparation of Y(OH)3:Eu3+ and Y2O3:Eu3+ with Nanotube Morphology by a Facile Hydrothemal Method." In 2015 International Symposium on Energy Science and Chemical Engineering. Atlantis Press, 2015. http://dx.doi.org/10.2991/isesce-15.2015.18.

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Shivaramu, N. J., E. Coetsee, and H. C. Swart. "TL and OSL characterization of Eu3+ doped Y2O3: Application in dosimetry." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5032543.

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Bryant, Alvin, Sacharia Albin, A. M. Buoncristiani, and R. S. Rogowski. "Luminescence of Eu3+ :Y2O3 Powder Thermally Diffused into an Optical Fiber for Distributed Thermal Sensing." In Inaugural Forum for the Research Center for Optical Physics. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/rcop.1993.tpfoscd82.

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The lifetime, the linewidth and the integrated intensity of emission from lanthanide rare earths ions, substitutionally doped into crystalline hosts is sensitive to changes in the temperature and provides a good basis for thermometry. We have begun development of distributed temperature sensor integrated into an optical fiber using this temperature dependent emission spectra. Eu3+: Y2O3 powder was thermally diffused into an optical fiber; the fiber was placed in an oven, optically pumped, and the resulting luminescence entrained within the fiber was measured as it emerged from the fiber. We re
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Vo, Thoai Phu, and Nguyen Doan Quoc Anh. "Effect of Y2O3:Eu3+ phosphor powder size on the performance of white LED lamp." In 2016 5th International Symposium on Next-Generation Electronics (ISNE). IEEE, 2016. http://dx.doi.org/10.1109/isne.2016.7543325.

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Quoc Anh, Nguyen Doan, and Thoai Phu Vo. "Improvement of color rendering ability for multi-chip LED packages by using Y2O3:Eu3+ phosphor." In 2016 5th International Symposium on Next-Generation Electronics (ISNE). IEEE, 2016. http://dx.doi.org/10.1109/isne.2016.7543324.

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Sreejaya, T. S., and Deepthi N. Rajendran. "Structural and optical studies of Er3+, Eu3+: Y2O3 phosphors synthesized by citrate sol gel method." In 3RD INTERNATIONAL CONFERENCE ON MATHEMATICAL TECHNIQUES AND APPLICATIONS (e-ICMTA-2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0158625.

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