Search results for "Erbium"

showing 10 items of 253 documents

Finely tunable laser based on a bulk silicon wafer for gas sensing applications

2016

In this work a very simple continuously tunable laser based on an erbium ring cavity and a silicon wafer is presented. This laser can be tuned with very fine steps, which is a compulsory characteristic for gas sensing applications. Moreover the laser is free of mode hopping within a spectral range sufficiently wide to match one of the ro-vibrational lines of a target molecule. Here the proposed laser reached, at ∼1530 nm, a continuous tuning range of around 950 pm (>100 GHz) before mode hopping occurred, when a silicon wafer of 355 μm thickness was used. Additionally, the laser can be finely tuned with small tuning steps of <12 pm, achieving a resolution of 84.6 pm °C-1 and by using a therm…

Range (particle radiation)Materials sciencePhysics and Astronomy (miscellaneous)Hybrid silicon laserbusiness.industrychemistry.chemical_element02 engineering and technologyLaser01 natural scienceslaw.invention010309 opticsErbiumWavelength020210 optoelectronics & photonicsOpticschemistrylaw0103 physical sciences0202 electrical engineering electronic engineering information engineeringWaferbusinessInstrumentationFabry–Pérot interferometerTunable laserLaser Physics Letters
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Design of Radiation-Hardened Rare-Earth Doped Amplifiers through a Coupled Experiment/Simulation Approach

2013

International audience; We present an approach coupling a limited experimental number of tests with numerical simulations regarding the design of radiation-hardened (RH) rare earth (RE)-doped fiber amplifiers. Radiation tests are done on RE-doped fiber samples in order to measure and assess the values of the principal input parameters requested by the simulation tool based on particle swarm optimization (PSO) approach. The proposed simulation procedure is validated by comparing the calculation results with the measured degradations of two amplifiers made with standard and RH RE-doped optical fibers, respectively. After validation, the numerical code is used to theoretically investigate the …

Rare-Earth ionsOptical fiberMaterials scienceoptical fiberschemistry.chemical_elementlaw.inventionErbiumlawElectronic engineeringSensitivity (control systems)FiberYtterbiumrare-earth ionsOptical FibersCouplingparticle swarm optimizationAmplifierOptique / photoniqueParticle swarm optimizationytterbiumAtomic and Molecular Physics and OpticsAmplifiers erbium optical fibers particle swarm optimization radiation effects rare-earth ions ytterbiumAmplifiersRadiation EffectserbiumchemistryParticle Swarm Optimizationoptical fiber Rare-earth ions optical amplifier radiation induced absortpion Particle swarm optimization[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonicradiation effectsErbiumSpace environment
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Effectiveness of a new method of disinfecting the root canal, using Er, Cr:YSGG laser to kill Enterococcus faecalis in an infected tooth model.

2013

Some lasers have demonstrated to provide effective disinfection when used as adjunctive device to the conventional treatment. The aim of this in vitro study was to determine the effectiveness of the erbium, chromium:yttrium scandium gallium garnet (Er, Cr:YSGG) laser by measuring its bactericidal effect inside the root canal experimentally colonized with Enterococcus faecalis. The laser was tested at different irradiation times (30 and 60 s) and energy of impulses (75 and 25 mJ). A total of 52 single-rooted extracted human teeth were endodontically prepared with rotary instrumentation. All were sterilized and inoculated with a suspension of E. faecalis (105 bacteria/ml). The teeth were rand…

Sodium HypochloriteRoot canalRoot canalsDentistryDermatologyIrradiation timeLasers Solid-StateDental CariesEnterococcus faecalislaw.inventionchemistry.chemical_compoundSettore MED/28 - Malattie OdontostomatologichelawmedicineEnterococcus faecalisHumansIrradiationTooth RootGram-Positive Bacterial InfectionsPeriodontal Diseasesbiologybusiness.industryLasersbiology.organism_classificationLaserBactericidal effectModels DentalE. faecaliRoot Canal TherapyDisinfectionEr Cr:YSGG lasermedicine.anatomical_structurechemistrySodium hypochloriteSurgeryRotary instrumentationDental Pulp CavitybusinessNuclear chemistryDisinfectantsErbiumLasers in medical science
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CCDC 2036265: Experimental Crystal Structure Determination

2020

Related Article: Tanmoy Kumar Ghosh, Souvik Maity, Júlia Mayans, Ashutosh Ghosh|2021|Inorg.Chem.|60|438|doi:10.1021/acs.inorgchem.0c03129

Space GroupCrystallography(mu-nitrato)-(mu-2-({[1-({[2-(oxy)phenyl]methylidene}amino)propan-2-yl]imino}methyl)-6-(methoxy)phenolato)-aqua-bis(nitrato)-copper-terbium acetonitrile solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 866940: Experimental Crystal Structure Determination

2013

Related Article: E.Colacio, J.Ruiz, A.J.Mota, M.A.Palacios, E.Ruiz, E.Cremades, M.M.Hanninen, R.Sillanpaa, E.K.Brechin|2012|Comptes Rendus Chimie|15|878|doi:10.1016/j.crci.2012.08.001

Space GroupCrystallography(mu~2~-Acetato)-(mu~2~-22'-((methylimino)bis(ethane-21-diyl(methylimino)methylene))bis(4-methyl-6-methoxyphenolato))-bis(nitrato)-cobalt-terbiumCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 801155: Experimental Crystal Structure Determination

2011

Related Article: A.Jana, S.Majumder, L.Carrella, M.Nayak, T.Weyhermueller, S.Dutta, D.Schollmeyer, E.Rentschler, R.Koner, S.Mohanta|2010|Inorg.Chem.|49|9012|doi:10.1021/ic101445n

Space GroupCrystallography(mu~2~-NN'-bis(3-Ethoxysalicylidene)-12-cyclohexanediamine)-tris(nitrato-OO')-copper(ii)-terbium(iii)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 801158: Experimental Crystal Structure Determination

2011

Related Article: A.Jana, S.Majumder, L.Carrella, M.Nayak, T.Weyhermueller, S.Dutta, D.Schollmeyer, E.Rentschler, R.Koner, S.Mohanta|2010|Inorg.Chem.|49|9012|doi:10.1021/ic101445n

Space GroupCrystallography(mu~2~-NN'-bis(3-Ethoxysalicylidene)-12-cyclohexanediamine)-tris(nitrato-OO')-copper(ii)-ytterbium(iii)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 995944: Experimental Crystal Structure Determination

2015

Related Article: Maria-Gabriela Alexandru, Diana Visinescu, Marius Andruh, Nadia Marino, Donatella Armentano, Joan Cano, Francesc Lloret, Miguel Julve|2015|Chem.-Eur.J.|21|5429|doi:10.1002/chem.201406088

Space GroupCrystallographyCrystal System(mu-22'-(propane-13-diylbis(nitrilomethylylidene))bis(6-methoxyphenolato))-bis(mu-cyano)-bis(110-phenanthroline)-tetra-aqua-hexacyano-copper-di-iron-terbium nitrate heptahydrateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1979785: Experimental Crystal Structure Determination

2020

Related Article: Elena A. Mikhalyova, Matthias Zeller, Jerry P. Jasinski, Raymond J. Butcher, Luca M. Carrella, Alexander E. Sedykh, Konstantin S. Gavrilenko, Sergey S. Smola, Michael Frasso, Sebastian Calderon Cazorla, Kuluni Perera, Anni Shi, Habib G. Ranjbar, Casey Smith, Alexandru Deac, Youlin Liu, Sean M. McGee, Vladimir P. Dotsenko, Michael U. Kumke, Klaus Müller-Buschbaum, Eva Rentschler, Anthony W. Addison, Vitaly V. Pavlishchuk|2020|Dalton Trans.|49|7774|doi:10.1039/D0DT00600A

Space GroupCrystallographyCrystal SystemCrystal Structure(mu-14-bis(3-acetylacetonato)benzene)-tetrakis(hydrogen tripyrazolylborate)-di-terbium toluene solvateCell ParametersExperimental 3D Coordinates
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CCDC 2036266: Experimental Crystal Structure Determination

2020

Related Article: Tanmoy Kumar Ghosh, Souvik Maity, Júlia Mayans, Ashutosh Ghosh|2021|Inorg.Chem.|60|438|doi:10.1021/acs.inorgchem.0c03129

Space GroupCrystallographyCrystal SystemCrystal Structure(mu-nitrato)-(mu-2-({[2-({[2-(oxy)phenyl]methylidene}amino)propyl]imino}methyl)-6-(methoxy)phenolato)-aqua-bis(nitrato)-copper-terbium acetonitrile solvateCell ParametersExperimental 3D Coordinates
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