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Artículos de revistas sobre el tema "Ytterbium borure"

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Autor: Grafiati

Publicado: 8 de noviembre de 2023

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1

Huppertz, Hubert. "Multianvil High-Pressure Synthesis And Crystal Structure Of β-YbBO3". Zeitschrift für Naturforschung B 56, n.º 8 (1 de agosto de 2001): 697–703. http://dx.doi.org/10.1515/znb-2001-0801.

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β-Ytterbium borate (β-YbBO3) was synthesized under high-pressure in a Walker-type multianvil apparatus at 2.2 GPa and 1400 °C. The title-compound crystallizes in the trigonal calcite structure, space group R3̄̄c. Single crystal X-ray data yielded a = 492.1(2), c = 1630.5(9) pm, wR2 = 0.0344 for 165 F2 values and 11 variable parameters. Within the trigonal planar BO3 groups the B-O distance is 137.8(4) pm. The ytterbium atoms have a slightly distorted octahedral oxygen coordination (Yb-O: 224.4(2) pm)

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2

Galutskiy, Valeriy V., Elena V. Stroganova y Nikolay A. Yakovenko. "A Comparative Analysis of Ytterbium-Erbium Media for 1.5 μm Lasers". Advanced Materials Research 660 (febrero de 2013): 40–46. http://dx.doi.org/10.4028/www.scientific.net/amr.660.40.

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To increase efficiency of continuous 1.5 μm laser radiation crystal laser media should be used instead of the glass ones. Generation efficiency in major laser crystals with ytterbium and erbium is at a disadvantage in relation to phosphate glasses. A cause of this phenomenon is a reverse energy transfer. Could be found crystals comparable in efficiency with Yb-Er phosphate glasses? At present a number of investigations on the use of ions relaxators Се 3+ in crystals Ca2Al2Si07 with ytterbium and erbium have been carried out to solve the problem of the reverse energy transfer in crystals [1,2]. It has been determined [1-3] that high content of cerium is needed to depress the reverse energy transfer. But cerium and ytterbium are in different ends of a lanthanide series, so silicate crystals with more isomorphic capacity such as Yb,Er,Ce:CaGdSiO (CGCS) have been proposed [3]. A sufficient solubility of Се 3+ ions in these crystals gives fast excitation relaxation on a laser level and guards against the reverse energy transfer from Er3+ to donor ions. Furthermore, a number of crystal media on the base of borate crystals with a developed phonon spectrum have been proposed [4,5]. They lack the reverse energy transfer, fast multiphonon nonradiative relaxation shunts the 4I11/2 – 4I13/2 Er3+ transfer. New crystals on the base of anhydrous borates – calcium-yttrium oxyorthoborates - Ca4YO(BO3)3 (YCOB) with ytterbium appeared recently [6], which showed high efficiency of generation, as well as calcium-barium fluor-orthoborates YbEr:Ca BaFBO3 (CBFB), in which ytterbium ions formed centers of luminescence with excellent characteristics [6]. Unfortunately, erbium ions in YCOB are characterized by high three level parameter [6], therefore the efficiency of generation Er,Yb:YCOB is not high. It has been determined recently that erbium ions in crystals CBFB have outstanding spectroscopic parameters, besides, between ytterbium and erbium ions fast energy transfer of electronic excitation takes place [7]. Since the efficiency of a sensitized laser medium depends on joint characteristics of the Yb and Er centres and the efficiency of their interactions, then available data allow considering crystals CBFB as a considerably promising matrix for an effective 1.5 μm laser. In order to obtain the most promising laser crystals and to answer the question cited above, it should be made their comparative analysis on basic spectroscopic and generative parameters. One of the important parameters related directly to the efficiency of the laser medium is an energy density of the generation threshold. Given spectroscopic parameters of active centers in crystals, the generation threshold of the one-activated laser medium (in an idealized model without passive losses) with a tree-level or quasi-four-level scheme of generation is specified by properties of active centers and can be easily determined by a simple formula [8]. The results obtained by this method are often used for determination of limiting parameters of the three-level laser media, the ytterbium media, for instance, and their comparative analysis [8]. There are known calculations of sensitized media generation parameters, among them the ytterbium-erbium glasses with a tube pumping [9], which although can be used for a diode pumping, nonetheless they are too unwieldy for simple estimation and comparative analysis. Hence there is a demand for simple analytical expressions such as [8] to calculate the lower limit of generation of the sensitized two-activated laser media with a diode pumping. The work reports the growing of single crystals CBFB and YCOB doped with erbium and ytterbium with erbium, and single crystals Yb,Er,Ce:CGS as well. We have made a comparative analysis of an ytterbium-erbium media for 1.5 μm lasers with a diode pumping on the base of simple expressions for limiting generation thresholds of the idealized sensitized media with a three-level scheme of generation, obtained in the approximation of balance equations without considering nonlinear and cumulative processes.

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3

Ivanov, V. Yu, A. M. Kuzmenko y A. A. Mukhin. "Magnetoelectric effect in ytterbium aluminum borate YbAl3(BO3)4". JETP Letters 105, n.º 7 (abril de 2017): 435–41. http://dx.doi.org/10.1134/s0021364017070074.

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4

Rabe, Gerd W., Florian A. Riederer, Mei Zhang-Preße y Glenn P. A. Yap. "Heteroleptic lanthanide terphenyl/tris(pyrazolyl)borate compounds of ytterbium". Inorganica Chimica Acta 364, n.º 1 (diciembre de 2010): 255–58. http://dx.doi.org/10.1016/j.ica.2010.08.011.

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5

Wang, Pu, Judith M. Dawes, Peter Dekker y James A. Piper. "Highly efficient diode-pumped ytterbium-doped yttrium aluminum borate laser". Optics Communications 174, n.º 5-6 (febrero de 2000): 467–70. http://dx.doi.org/10.1016/s0030-4018(99)00686-0.

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6

Lu, Dazhi, Xiaoheng Li, Haohai Yu, Huaijin Zhang y Jiyang Wang. "Review of the Yb3+:ScBO3 Laser Crystal Growth, Characterization, and Laser Applications". Applied Sciences 11, n.º 22 (17 de noviembre de 2021): 10879. http://dx.doi.org/10.3390/app112210879.

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Passive Q-switching is an effective approach for generating pulsed lasers, owing to its compact and additional modulation-free design. However, to compare favorably with active Q-switching and multi-stage amplification, the output energy needs to be enhanced for practical applications. Kramers Ytterbium ion (Yb3+)-doped borate crystals, with their excellent energy storage capacity, have been proven to be high-potential laser gain mediums for achieving pulsed lasers with moderate and high output energy using passive Q-switching technology. In this study, the growth, characterization, and laser generation of one Yb3+-doped borate crystal, the Yb3+:ScBO3 crystal, are systematically reviewed. The continuous-wave and passive Q-switching laser characteristics are presented in detail, and the self-pulsations derived from intrinsic ground-state reabsorption are also demonstrated. The specific characteristics and experiments confirm the potential of the Yb3+:ScBO3 crystal for future pulsed laser applications with moderate or even high energy output.

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7

Sablayrolles, J., V. Jubera, F. Guillen, R. Decourt, M. Couzi, J. P. Chaminade y A. Garcia. "Infrared and visible spectroscopic studies of the ytterbium doped borate Li6Y(BO3)3". Optics Communications 280, n.º 1 (diciembre de 2007): 103–9. http://dx.doi.org/10.1016/j.optcom.2007.07.034.

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8

Guo, Rui, Yicheng Wu, Peizhen Fu y Fangli Jing. "Growth and spectroscopic properties of ytterbium-doped lanthanum calcium borate (Yb3+:La2CaB10O19) crystal". Optics Communications 244, n.º 1-6 (enero de 2005): 321–25. http://dx.doi.org/10.1016/j.optcom.2004.09.041.

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9

Litlabø, Rannveig, Kuburat Saliu, Michael J. Ferguson, Robert McDonald, Josef Takats y Reiner Anwander. "Monomeric Tetraalkylaluminates of Divalent Ytterbium Stabilized by a Bulky Tris(pyrazolyl)borate Ligand". Organometallics 28, n.º 23 (14 de diciembre de 2009): 6750–54. http://dx.doi.org/10.1021/om900744k.

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10

Sablayrolles, J., V. Jubera, M. Delaigue, I. Manek-Hönninger, J. P. Chaminade, J. Hejtmanek, R. Decourt y A. Garcia. "Thermal properties and cw-laser operation of the ytterbium doped borate Li6Y(BO3)3". Materials Chemistry and Physics 115, n.º 2-3 (junio de 2009): 512–15. http://dx.doi.org/10.1016/j.matchemphys.2009.02.011.

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11

Guélou, Gabin, Maya Martirossyan, Kazuo Ogata, Isao Ohkubo, Yohei Kakefuda, Naoyuki Kawamoto, Yuuki Kitagawa et al. "Rapid deposition and thermoelectric properties of ytterbium boride thin films using hybrid physical chemical vapor deposition". Materialia 1 (septiembre de 2018): 244–48. http://dx.doi.org/10.1016/j.mtla.2018.06.003.

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12

Rabe, Gerd W., Florian A. Riederer, Mei Zhang-Preße y Arnold L. Rheingold. "Monomeric tris(pyrazolyl)borate compounds of samarium and ytterbium stabilized by a donor-functionalized terphenyl moiety". Inorganica Chimica Acta 457 (marzo de 2017): 103–6. http://dx.doi.org/10.1016/j.ica.2016.11.019.

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13

Wang, Pu, Judith M. Dawes, Peter Dekker, David S. Knowles, James A. Piper y Baosheng Lu. "Growth and evaluation of ytterbium-doped yttrium aluminum borate as a potential self-doubling laser crystal". Journal of the Optical Society of America B 16, n.º 1 (1 de enero de 1999): 63. http://dx.doi.org/10.1364/josab.16.000063.

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14

Haberer, Almut y Hubert Huppertz. "High-pressure synthesis, crystal structure, and structural relationship of the first ytterbium fluoride borate Yb5(BO3)2F9". Journal of Solid State Chemistry 182, n.º 4 (abril de 2009): 888–95. http://dx.doi.org/10.1016/j.jssc.2009.01.023.

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15

Beeby, Andrew, Benjamin P. Burton-Pye, Stephen Faulkner, Graham R. Motson, John C. Jeffery, Jon A. McCleverty y Michael D. Ward. "Synthesis and near-IR luminescence properties of neodymium(iii) and ytterbium(iii) complexes with poly(pyrazolyl)borate ligands". Journal of the Chemical Society, Dalton Transactions, n.º 9 (3 de abril de 2002): 1923–28. http://dx.doi.org/10.1039/b200519k.

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16

Ebothé, J., I. V. Kityk, J. Kisielewski, T. Lukasiewicz, R. Diduszko y A. Majchrowski. "Optically induced linear electro-optic effects in ytterbium-doped strontium yttrium borate Sr3Y(BO3)3:Yb nanocrystallites incorporated into polymer matrices". Applied Physics Letters 89, n.º 13 (25 de septiembre de 2006): 131106. http://dx.doi.org/10.1063/1.2357035.

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17

Gorbachenya, K. N., V. E. Kisel, A. S. Yasukevich, E. V. Koporulina, E. A. Volkova, V. V. Maltsev, N. I. Leonyuk y N. V. Kuleshov. "High Power Diode-Pumped Erbium Laser Emitting at Near 1.5 μm". Devices and Methods of Measurements 12, n.º 2 (25 de junio de 2021): 91–97. http://dx.doi.org/10.21122/2220-9506-2021-12-2-91-97.

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Solid-state lasers emitting in the 1.5–1.6 μm spectral range are very promising for eye-safe laser range finding, ophthalmology, fiber-optic communication systems, and optical location. The aim of this work is the investigation of spectrosposcopic and laser properties of gain medium based on borate crystal for abovementioned lasers.Spectroscopic and laser properties of Er,Yb:YAl3(BO3)4 crystals with different concentrations of dopants were investigated. Polarized absorption and emission cross-section spectra were determined. The ytterbium- erbium energy transfer efficiency was estimated. The maximal energy transfer efficiency up to 97 % was obtained for Er(4 at.%),Yb(11 at.%):YAl3(BO3)4 crystal.The laser operation of heavily doped crystals with erbium concentration up to 4 аt.% (2.2^1020 cm^3) was realized. By using of Er(2 at.%),Yb(11 at.%):YAl3(BO3)4 crystal a maximal continuous- wave (CW) output power of 1.6 W was obtained at 1522 nm with slope efficiency of 32 %. By using of Er(4 at.%),Yb(11 at.%):YAl3(BO3)4 crystal a maximal peak output power up to 2.2 W with slope efficiency of 40 % was realized in quasi-continuous-wave regime of operation. The spatial profile of the output beam was close to TEM00 mode with M2 < 1.2 during all laser experiments.Based on the obtained results, it can be concluded that Er,Yb:YAl3(BO3)4 crystals are promising active media for lasers emitting in the spectral range of 1.5-1.6 pm for the usage in laser rangefinder and laser- induced breakdown spectroscopy systems, and LIDARs.

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18

Jubera, Véronique, Marie Chavoutier, Alla Artemenko, Philippe Veber, Matias Velazquez y Alain Garcia. "Correlation between Luminescence and EPR Spectroscopy as Evidence of Ytterbium Pair Formation in Li 6 Ln(BO 3 ) 3 :Yb 3+ (Ln=Gd, Y) Borate Single Crystals". ChemPhysChem 12, n.º 7 (19 de abril de 2011): 1288–93. http://dx.doi.org/10.1002/cphc.201100059.

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19

Hill, Tara G., Robert A. Godfroid, James P. White y Sheldon G. Shore. "Reduction of borane THF by alkali metal (potassium, rubidium, cesium) and ytterbium mercury amalgams to form salts of octahydrotriborate(1-); a simple procedure for the synthesis of tetraborane(10)". Inorganic Chemistry 30, n.º 14 (julio de 1991): 2952–54. http://dx.doi.org/10.1021/ic00014a024.

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20

Marzouk, S. Y., M. A. Azooz, H. M. Elsaghier, Nehad A. Zidan y W. Abbas. "Structural and optical properties of barium titanium borate glasses doped with ytterbium". Journal of Materials Science: Materials in Electronics, 21 de julio de 2022. http://dx.doi.org/10.1007/s10854-022-08665-0.

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AbstractBarium titanium borate glasses doped with ytterbium ions were fabricated via standard melt quenching technique. The building structure of the glass matrices doped with ascendant ratios of ytterbium ions were studied using Raman and FTIR spectroscopies. The UV–Vis–NIR optical absorption spectra were investigated and used to calculate optical bandgaps, Urbach energies, refractive indices, metallization criterion, optical basicity, and dispersion parameters. The absorption and emission cross-sections and gain spectra for 2F5/2 → 2F7/2 transition of ytterbium ions were investigated. The high values of the emission cross-sections of the studied glasses make them strong candidates for laser and amplifier applications.

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21

Shi, Xianghui, Peng Deng, Thayalan Rajeshkumar, Lanxiao Zhao, Laurent Maron y Jianhua Cheng. "A mononuclear divalent ytterbium hydrido complex supported by a super-bulky scorpionate ligand". Chemical Communications, 2021. http://dx.doi.org/10.1039/d1cc04488e.

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The first mononuclear divalent ytterbium hydride complex [(TpAd,iPr)Yb(H)(THF)] (TpAd,iPr = hydrotris(3-adamantyl-5-isopropyl-pyrazolyl)borate) (2) bearing a terminal hydrido ligand was obtained by hydrogenolysis of the benzyl precursor in hexane.

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22

Haberer, Almut y Hubert Huppertz. "ChemInform Abstract: High-Pressure Synthesis, Crystal Structure, and Structural Relationship of the First Ytterbium Fluoride Borate Yb5(BO3)2F9." ChemInform 40, n.º 27 (7 de julio de 2009). http://dx.doi.org/10.1002/chin.200927017.

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