The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
S Ohara - One of the best experts on this subject based on the ideXlab platform.
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Passive mode-locking of a monolithic waveguide laser with simultaneous Q-switching
2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR), 2013Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, S OharaAbstract:A compact waveguide laser in ytterbium doped Bismuthate glass is demonstrated. Mode-locked pulses of 1.55 GHz pulse repetition rate are obtained within a Q-switched pulse envelope that follows at a repetition rate of 450 kHz.
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q switched modelocking using carbon nanotubes in an ultrafast laser inscribed ytterbium doped Bismuthate glass waveguide laser
Photonics, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, D Popa, Tawfique Hasan, Andrea Ferrari, S OharaAbstract:Passive modelocking using carbon nanotubes is achieved in a linear cavity waveguide laser realized by ultrafast laser inscription in ytterbium doped Bismuthate glass. The pulses observed under a Q-switched envelope have a repetition rate of 1.5 GHz.
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compact highly efficient ytterbium doped Bismuthate glass waveguide laser
Optics Letters, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, Robert R. Thomson, D Jaque, S OharaAbstract:Laser slope efficiencies close to the quantum defect limit and in excess of 78% have been obtained from an ultrafast laser inscribed buried channel waveguide fabricated in a ytterbium-doped Bismuthate glass. The simultaneous achievement of low propagation losses and preservation of the fluorescence properties of ytterbium ions is the basis of the outstanding laser performance.
R. Mary - One of the best experts on this subject based on the ideXlab platform.
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1 94 ghz cw modelocked ytterbium doped Bismuthate glass waveguide laser
Advanced Solid State Lasers (2015) paper AM5A.22, 2015Co-Authors: Adam Lancaster, R. Mary, Amol Choudhary, D P ShepherdAbstract:A 1.94 GHz CW modelocked ytterbium-doped Bismuthate waveguide laser is presented. The waveguide was fabricated using the ultrafast laser inscription technique. Pulse energy of 30.9 pJ and pulse duration of 1.1 ps are inferred from the spectral width.
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Passive mode-locking of a monolithic waveguide laser with simultaneous Q-switching
2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR), 2013Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, S OharaAbstract:A compact waveguide laser in ytterbium doped Bismuthate glass is demonstrated. Mode-locked pulses of 1.55 GHz pulse repetition rate are obtained within a Q-switched pulse envelope that follows at a repetition rate of 450 kHz.
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q switched modelocking using carbon nanotubes in an ultrafast laser inscribed ytterbium doped Bismuthate glass waveguide laser
Photonics, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, D Popa, Tawfique Hasan, Andrea Ferrari, S OharaAbstract:Passive modelocking using carbon nanotubes is achieved in a linear cavity waveguide laser realized by ultrafast laser inscription in ytterbium doped Bismuthate glass. The pulses observed under a Q-switched envelope have a repetition rate of 1.5 GHz.
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compact highly efficient ytterbium doped Bismuthate glass waveguide laser
Optics Letters, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, Robert R. Thomson, D Jaque, S OharaAbstract:Laser slope efficiencies close to the quantum defect limit and in excess of 78% have been obtained from an ultrafast laser inscribed buried channel waveguide fabricated in a ytterbium-doped Bismuthate glass. The simultaneous achievement of low propagation losses and preservation of the fluorescence properties of ytterbium ions is the basis of the outstanding laser performance.
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Yb-doped Bismuthate Glass waveguide laser fabricated by Ultrafast Laser Inscription
Lasers Sources and Related Photonic Devices, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, Robert R. ThomsonAbstract:We demonstrate laser action from an ultrafast laser inscribed Yb doped Bismuthate glass waveguide. When pumped using a 975 nm diode laser, efficient lasing was observed at 1059 nm with a maximum output power of 148 mW and a slope efficiency of 64%.
Stephen J. Beecher - One of the best experts on this subject based on the ideXlab platform.
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Passive mode-locking of a monolithic waveguide laser with simultaneous Q-switching
2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR), 2013Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, S OharaAbstract:A compact waveguide laser in ytterbium doped Bismuthate glass is demonstrated. Mode-locked pulses of 1.55 GHz pulse repetition rate are obtained within a Q-switched pulse envelope that follows at a repetition rate of 450 kHz.
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q switched modelocking using carbon nanotubes in an ultrafast laser inscribed ytterbium doped Bismuthate glass waveguide laser
Photonics, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, D Popa, Tawfique Hasan, Andrea Ferrari, S OharaAbstract:Passive modelocking using carbon nanotubes is achieved in a linear cavity waveguide laser realized by ultrafast laser inscription in ytterbium doped Bismuthate glass. The pulses observed under a Q-switched envelope have a repetition rate of 1.5 GHz.
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compact highly efficient ytterbium doped Bismuthate glass waveguide laser
Optics Letters, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, Robert R. Thomson, D Jaque, S OharaAbstract:Laser slope efficiencies close to the quantum defect limit and in excess of 78% have been obtained from an ultrafast laser inscribed buried channel waveguide fabricated in a ytterbium-doped Bismuthate glass. The simultaneous achievement of low propagation losses and preservation of the fluorescence properties of ytterbium ions is the basis of the outstanding laser performance.
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Yb-doped Bismuthate Glass waveguide laser fabricated by Ultrafast Laser Inscription
Lasers Sources and Related Photonic Devices, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, Robert R. ThomsonAbstract:We demonstrate laser action from an ultrafast laser inscribed Yb doped Bismuthate glass waveguide. When pumped using a 975 nm diode laser, efficient lasing was observed at 1059 nm with a maximum output power of 148 mW and a slope efficiency of 64%.
G. Brown - One of the best experts on this subject based on the ideXlab platform.
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Passive mode-locking of a monolithic waveguide laser with simultaneous Q-switching
2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR), 2013Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, S OharaAbstract:A compact waveguide laser in ytterbium doped Bismuthate glass is demonstrated. Mode-locked pulses of 1.55 GHz pulse repetition rate are obtained within a Q-switched pulse envelope that follows at a repetition rate of 450 kHz.
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q switched modelocking using carbon nanotubes in an ultrafast laser inscribed ytterbium doped Bismuthate glass waveguide laser
Photonics, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, D Popa, Tawfique Hasan, Andrea Ferrari, S OharaAbstract:Passive modelocking using carbon nanotubes is achieved in a linear cavity waveguide laser realized by ultrafast laser inscription in ytterbium doped Bismuthate glass. The pulses observed under a Q-switched envelope have a repetition rate of 1.5 GHz.
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compact highly efficient ytterbium doped Bismuthate glass waveguide laser
Optics Letters, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, Robert R. Thomson, D Jaque, S OharaAbstract:Laser slope efficiencies close to the quantum defect limit and in excess of 78% have been obtained from an ultrafast laser inscribed buried channel waveguide fabricated in a ytterbium-doped Bismuthate glass. The simultaneous achievement of low propagation losses and preservation of the fluorescence properties of ytterbium ions is the basis of the outstanding laser performance.
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Yb-doped Bismuthate Glass waveguide laser fabricated by Ultrafast Laser Inscription
Lasers Sources and Related Photonic Devices, 2012Co-Authors: R. Mary, Stephen J. Beecher, G. Brown, Robert R. ThomsonAbstract:We demonstrate laser action from an ultrafast laser inscribed Yb doped Bismuthate glass waveguide. When pumped using a 975 nm diode laser, efficient lasing was observed at 1059 nm with a maximum output power of 148 mW and a slope efficiency of 64%.
E.o. Nashchochin - One of the best experts on this subject based on the ideXlab platform.
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strontium Bismuthate sr 3 bi 2 o 6 thermostimulated change of optical properties and its analysis from the point of view of urbach rule
International Conference on Electrical Engineering, 2019Co-Authors: E.o. Nashchochin, P.s. Goncharova, D.s. Shtarev, A.v. Shtareva, A.v. Syuy, T.v. Bakiev, ANDREI VIKTOROVICH FILIMONOVAbstract:Data on the temperature dependence of the optical properties of Sr 3 Bi 2 O 6 strontium Bismuthate are given. Several linear sections were found on the diffuse reflection spectra on a logarithmic scale. It was shown that additional linear regions can be associated with electrons localized at deep biographical defects of the crystal lattice. For all detected linear sections, the main parameters of electron-phonon interactions are determined.
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on the influence of strontium carbonate on improving the photo catalytic activity of strontium Bismuthate sr6bi2o11
Catalysis Today, 2019Co-Authors: D.s. Shtarev, A.v. Shtareva, Ju V Mikhailovski, E.o. NashchochinAbstract:Abstract The issue of obtaining heterostructures from strontium Bismuthate and strontium carbonate is discussed. Effect of increase of photocatalytic activity of such heterostructures at the certain weight ratio of strontium carbonate is discovered. It is shown that increase of photocatalytic activity is correlating to opposite migrations of bismuth and carbon atoms through the interface.
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About Photocatalytic Properties of some Heterostructures Based on Strontium Bismuthate
Key Engineering Materials, 2019Co-Authors: D.s. Shtarev, A.v. Shtareva, A.v. Syuy, Maxim S. Molokeev, E.o. NashchochinAbstract:In the work, some heterostructures consisting of two different strontium Bismuthates from the following series are investigated: Sr2Bi2O5, Sr3Bi2O6 and Sr6Bi2O11. It is shown that the creation of such heterostructures affects both optical and photocatalytic properties. The results obtained are promising for the further development and research of new heterostructures based on two different strontium Bismuthates and for studying the characteristics of their photocatalytic activity.
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Strontium Bismuthate Sr3Bi2O6: Thermostimulated Change of Optical Properties and its Analysis from the Point of View of Urbach Rule
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech), 2019Co-Authors: E.o. Nashchochin, P.s. Goncharova, D.s. Shtarev, A.v. Shtareva, A.v. Syuy, T.v. Bakiev, ANDREI VIKTOROVICH FILIMONOVAbstract:Data on the temperature dependence of the optical properties of Sr3Bi2O6 strontium Bismuthate are given. Several linear sections were found on the diffuse reflection spectra on a logarithmic scale. It was shown that additional linear regions can be associated with electrons localized at deep biographical defects of the crystal lattice. For all detected linear sections, the main parameters of electron-phonon interactions are determined.
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Strontium Bismuthates Sr2Bi2O5 and Sr6Bi2O11: Temperature Dependencies of Urbach Energy and Location of «Urbach Focus»
Defect and Diffusion Forum, 2018Co-Authors: E.o. Nashchochin, D.s. Shtarev, A.v. Shtareva, A.v. SyuyAbstract:We present information about temperature dependence of optical properties of two different strontium Bismuthates. We demonstrate that temperature dependencies of Urbach energy of two strontium Bismuthates differ radically. Abnormal behavior of Urbach focus of strontium Bismuthate Sr2Bi2O5 is observed. We assume existence of phase transit in strontium Bismuthate Sr2Bi2O5 at the temperature around 305 K.