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Thibaut Sylvestre - One of the best experts on this subject based on the ideXlab platform.
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supercontinuum generation in heavy metal Oxide Glass based suspended core photonic crystal fibers
arXiv: Optics, 2019Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:We investigate supercontinuum generation in several suspended-core soft-Glass photonic crystal fibers pumped by an optical parametric oscillator tunable around 1550 nm. The fibers were drawn from lead-bismuth-gallium-cadmium-Oxide Glass (PBG-81) with a wide transmission window from 0.5-2.7 micron and a high nonlinear refractive index up to 4.3.10^(-19) m^2/W. They have been specifically designed with a microscale suspended hexagonal core for efficient supercontinuum generation around 1550 nm. We experimentally demonstrate two supercontinuum spectra spanning from 1.07-2.31 micron and 0.89-2.46 micron by pumping two PCFs in both normal and anomalous dispersion regimes, respectively. We also numerically model the group velocity dispersion curves for these fibers from their scanning electron microscope images. Results are in good agreement with numerical simulations based on the generalized nonlinear Schrodinger equation including the pump frequency chirp.
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supercontinuum generation in suspended core heavy metal Oxide Glass photonic crystal fibers
Advanced Photonics 2018 (BGPP IPR NP NOMA Sensors Networks SPPCom SOF) (2018) paper SoTh3H.2, 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:Supercontinuum generation from 0.9 μm up to 2.48 μm is experimentally demonstrated in suspended-core heavy metal Oxide photonic crystal fibers pumped in both the normal and anomalous dispersion regimes.
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supercontinuum generation in suspended core heavy metal Oxide Glass photonic crystal fibers
Micro-Structured and Specialty Optical Fibres V, 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:ABSTRACT In this paper we investigate supercontinuum (SC) generation in several suspended-core soft-Glass photonic crystal fibers (PCFs) pumped by an optical parametric oscillator (OPO) tunable around 1550 nm. The fibers were drawn from leadbismuth- gallium-cadmium-Oxide Glass (PBG81) featuring a wide transmission window from 0.5 μm till 2.7 μm and a high nonlinear refractive index up to 43×10 -20 m 2 /W. They have been specifically designed with a microscale suspended hexagonal core for efficient pumping around 1550 nm. This microstructure geometry also prevents from Glass recrystallization and provides higher mechanical durability. We experimentally demonstrate two SC spectra spanning from 1.07 μm to 2.31 μm and 0.89 μm to 2.46 μm by pumping two PCFs in both normal and anomalous dispersion regimes at 1550 nm and 1580 nm, respectively. We further show a number of nonlinear phenomena such as spectral broadening due to self-phase modulation, soliton generation, and Raman soliton self-frequency shift in the fiber at the pumping wavelengths. We also numerically simulate the group velocity dispersion curves for these fibers from their scanning electron microscope (SEM) images.
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Supercontinuum generation in heavy-metal Oxide Glass based suspended-core photonic crystal fibers
Journal of the Optical Society of America B (JOSA B), 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:In this paper we investigate supercontinuum generation in several suspended-core soft-Glass photonic crystal fibers pumped by an optical parametric oscillator tunable around 1550 nm. The fibers were drawn from lead-bismuth-gallium-cadmium-Oxide Glass (PBG-81) featuring a wide transmission window from 0.5 to 2.7 μm and a high nonlinear refractive index up to 4.3·1019 m2/W. They have been specifically designed with a microscale suspended hexagonal core for efficient supercontinuum generation around 1550 nm. We experimentally demonstrate two supercontinuum spectra spanning from 1.07 to 2.31 μm and 0.89 to 2.46 μm by pumping two PCFs in both normal and anomalous dispersion regimes, respectively. We also numerically model the group velocity dispersion curves for these fibers from their scanning electron microscope images. The results are in good agreement with numerical simulations based on the generalized nonlinear Schrödinger equation including the pump frequency chirp.
Ryszard Buczynski - One of the best experts on this subject based on the ideXlab platform.
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supercontinuum generation in heavy metal Oxide Glass based suspended core photonic crystal fibers
arXiv: Optics, 2019Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:We investigate supercontinuum generation in several suspended-core soft-Glass photonic crystal fibers pumped by an optical parametric oscillator tunable around 1550 nm. The fibers were drawn from lead-bismuth-gallium-cadmium-Oxide Glass (PBG-81) with a wide transmission window from 0.5-2.7 micron and a high nonlinear refractive index up to 4.3.10^(-19) m^2/W. They have been specifically designed with a microscale suspended hexagonal core for efficient supercontinuum generation around 1550 nm. We experimentally demonstrate two supercontinuum spectra spanning from 1.07-2.31 micron and 0.89-2.46 micron by pumping two PCFs in both normal and anomalous dispersion regimes, respectively. We also numerically model the group velocity dispersion curves for these fibers from their scanning electron microscope images. Results are in good agreement with numerical simulations based on the generalized nonlinear Schrodinger equation including the pump frequency chirp.
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supercontinuum generation in suspended core heavy metal Oxide Glass photonic crystal fibers
Advanced Photonics 2018 (BGPP IPR NP NOMA Sensors Networks SPPCom SOF) (2018) paper SoTh3H.2, 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:Supercontinuum generation from 0.9 μm up to 2.48 μm is experimentally demonstrated in suspended-core heavy metal Oxide photonic crystal fibers pumped in both the normal and anomalous dispersion regimes.
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supercontinuum generation in suspended core heavy metal Oxide Glass photonic crystal fibers
Micro-Structured and Specialty Optical Fibres V, 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:ABSTRACT In this paper we investigate supercontinuum (SC) generation in several suspended-core soft-Glass photonic crystal fibers (PCFs) pumped by an optical parametric oscillator (OPO) tunable around 1550 nm. The fibers were drawn from leadbismuth- gallium-cadmium-Oxide Glass (PBG81) featuring a wide transmission window from 0.5 μm till 2.7 μm and a high nonlinear refractive index up to 43×10 -20 m 2 /W. They have been specifically designed with a microscale suspended hexagonal core for efficient pumping around 1550 nm. This microstructure geometry also prevents from Glass recrystallization and provides higher mechanical durability. We experimentally demonstrate two SC spectra spanning from 1.07 μm to 2.31 μm and 0.89 μm to 2.46 μm by pumping two PCFs in both normal and anomalous dispersion regimes at 1550 nm and 1580 nm, respectively. We further show a number of nonlinear phenomena such as spectral broadening due to self-phase modulation, soliton generation, and Raman soliton self-frequency shift in the fiber at the pumping wavelengths. We also numerically simulate the group velocity dispersion curves for these fibers from their scanning electron microscope (SEM) images.
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Supercontinuum generation in heavy-metal Oxide Glass based suspended-core photonic crystal fibers
Journal of the Optical Society of America B (JOSA B), 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:In this paper we investigate supercontinuum generation in several suspended-core soft-Glass photonic crystal fibers pumped by an optical parametric oscillator tunable around 1550 nm. The fibers were drawn from lead-bismuth-gallium-cadmium-Oxide Glass (PBG-81) featuring a wide transmission window from 0.5 to 2.7 μm and a high nonlinear refractive index up to 4.3·1019 m2/W. They have been specifically designed with a microscale suspended hexagonal core for efficient supercontinuum generation around 1550 nm. We experimentally demonstrate two supercontinuum spectra spanning from 1.07 to 2.31 μm and 0.89 to 2.46 μm by pumping two PCFs in both normal and anomalous dispersion regimes, respectively. We also numerically model the group velocity dispersion curves for these fibers from their scanning electron microscope images. The results are in good agreement with numerical simulations based on the generalized nonlinear Schrödinger equation including the pump frequency chirp.
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infrared supercontinuum generation in soft Glass photonic crystal fibers pumped at 1560 nm
Optical Materials Express, 2014Co-Authors: Grzegorz Sobon, Mariusz Klimczak, Jaroslaw Sotor, Karol Krzempek, Dariusz Pysz, Ryszard Stepien, Tadeusz Martynkien, Krzysztof M Abramski, Ryszard BuczynskiAbstract:In this work we present results on supercontinuum (SC) generation in a photonic crystal fiber (PCF) fabricated from lead-bismuth-gallium-Oxide Glass (PBG-08). Due to high refractive index, high nonlinearity and high transmittance, the PBG-08 Glass-based fibers seem to be excellent media for broad supercontinuum generation in the infrared spectral region. In our experiment, a short-length piece of PCF (5-6 cm) is pumped by a femtosecond chirped pulse amplification (CPA) setup, which may be seeded by two different fiber-based oscillators. This compact and cost-effective system allows to generate SC spanning from 900 to 2400 nm. The paper describes in detail the fabrication process of the fiber, as well as the SC generation results.
Tzuchien Wei - One of the best experts on this subject based on the ideXlab platform.
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immobilization of poly n vinyl 2 pyrrolidone capped platinum nanoclusters on indium tin Oxide Glass and its application in dye sensitized solar cells
Journal of Physical Chemistry C, 2007Co-Authors: Tzuchien Wei, Chichao Wan, Yungyun Wang, Chihming Chen, Hansheng ShiuAbstract:Poly(N-vinyl-2-pyrrolidone) (PVP)-capped Pt nanoclusters were deposited on indium−tin Oxide Glass via a simple two-step dip-coating process. This new type of electrode was examined by atomic force microscopy, inductively coupled plasma−atomic emission spectroscopy, electrochemical impedance spectroscopy, and cyclic voltammetry. The results reveal that the Pt nanoclusters sized about 10−20 nm show a noticeable catalytic effect on tri-iodide reduction although they are surrounded by PVP entanglements. The new electrolyte can serve as a counter electrode in dye-sensitized solar cells (DSSCs). In addition, we have found a counter action between the nanosized effect and the hindrance effect by PVP entanglement on both catalytic kinetics and ion diffusivity. Finally, at certain PVP levels, the so-prepared electrode's performance is similar to a smooth Pt metal sheet electrode. So this process could potentially reduce manufacturing costs for DSSCs, which further enhances the feature of DSSCs in furnishing low co...
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poly n vinyl 2 pyrrolidone capped platinum nanoclusters on indium tin Oxide Glass as counterelectrode for dye sensitized solar cells
Applied Physics Letters, 2006Co-Authors: Tzuchien Wei, C C Wan, Y Y WangAbstract:Poly(N-vinyl-2-pyrrolidone)-capped platinum nanoclusters were deposited on indium tin Oxide Glass as a counterelectrode for dye-sensitized solar cells using a “two-step dip coating” process at room temperature. Compared to sputtered-Pt electrodes, an electrode produced by this technique exhibited ultralow Pt-loading at 4.89μg∕cm2 and an acceptable charge-transfer resistance of 5.66Ωcm2. Current-voltage characteristics of the DSSC at this stage stand at 0.66V on VOC, 10.5mA∕cm2 on ISC, 0.41 on fill factor, and 2.84% cell efficiency under AM1.5, 100mW∕cm2 illumination.
Y Y Wang - One of the best experts on this subject based on the ideXlab platform.
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poly n vinyl 2 pyrrolidone capped platinum nanoclusters on indium tin Oxide Glass as counterelectrode for dye sensitized solar cells
Applied Physics Letters, 2006Co-Authors: Tzuchien Wei, C C Wan, Y Y WangAbstract:Poly(N-vinyl-2-pyrrolidone)-capped platinum nanoclusters were deposited on indium tin Oxide Glass as a counterelectrode for dye-sensitized solar cells using a “two-step dip coating” process at room temperature. Compared to sputtered-Pt electrodes, an electrode produced by this technique exhibited ultralow Pt-loading at 4.89μg∕cm2 and an acceptable charge-transfer resistance of 5.66Ωcm2. Current-voltage characteristics of the DSSC at this stage stand at 0.66V on VOC, 10.5mA∕cm2 on ISC, 0.41 on fill factor, and 2.84% cell efficiency under AM1.5, 100mW∕cm2 illumination.
Mariusz Klimczak - One of the best experts on this subject based on the ideXlab platform.
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supercontinuum generation in heavy metal Oxide Glass based suspended core photonic crystal fibers
arXiv: Optics, 2019Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:We investigate supercontinuum generation in several suspended-core soft-Glass photonic crystal fibers pumped by an optical parametric oscillator tunable around 1550 nm. The fibers were drawn from lead-bismuth-gallium-cadmium-Oxide Glass (PBG-81) with a wide transmission window from 0.5-2.7 micron and a high nonlinear refractive index up to 4.3.10^(-19) m^2/W. They have been specifically designed with a microscale suspended hexagonal core for efficient supercontinuum generation around 1550 nm. We experimentally demonstrate two supercontinuum spectra spanning from 1.07-2.31 micron and 0.89-2.46 micron by pumping two PCFs in both normal and anomalous dispersion regimes, respectively. We also numerically model the group velocity dispersion curves for these fibers from their scanning electron microscope images. Results are in good agreement with numerical simulations based on the generalized nonlinear Schrodinger equation including the pump frequency chirp.
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supercontinuum generation in suspended core heavy metal Oxide Glass photonic crystal fibers
Advanced Photonics 2018 (BGPP IPR NP NOMA Sensors Networks SPPCom SOF) (2018) paper SoTh3H.2, 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:Supercontinuum generation from 0.9 μm up to 2.48 μm is experimentally demonstrated in suspended-core heavy metal Oxide photonic crystal fibers pumped in both the normal and anomalous dispersion regimes.
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supercontinuum generation in suspended core heavy metal Oxide Glass photonic crystal fibers
Micro-Structured and Specialty Optical Fibres V, 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:ABSTRACT In this paper we investigate supercontinuum (SC) generation in several suspended-core soft-Glass photonic crystal fibers (PCFs) pumped by an optical parametric oscillator (OPO) tunable around 1550 nm. The fibers were drawn from leadbismuth- gallium-cadmium-Oxide Glass (PBG81) featuring a wide transmission window from 0.5 μm till 2.7 μm and a high nonlinear refractive index up to 43×10 -20 m 2 /W. They have been specifically designed with a microscale suspended hexagonal core for efficient pumping around 1550 nm. This microstructure geometry also prevents from Glass recrystallization and provides higher mechanical durability. We experimentally demonstrate two SC spectra spanning from 1.07 μm to 2.31 μm and 0.89 μm to 2.46 μm by pumping two PCFs in both normal and anomalous dispersion regimes at 1550 nm and 1580 nm, respectively. We further show a number of nonlinear phenomena such as spectral broadening due to self-phase modulation, soliton generation, and Raman soliton self-frequency shift in the fiber at the pumping wavelengths. We also numerically simulate the group velocity dispersion curves for these fibers from their scanning electron microscope (SEM) images.
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Supercontinuum generation in heavy-metal Oxide Glass based suspended-core photonic crystal fibers
Journal of the Optical Society of America B (JOSA B), 2018Co-Authors: Amar Nath Ghosh, Mariusz Klimczak, Ryszard Buczynski, J M Dudley, Thibaut SylvestreAbstract:In this paper we investigate supercontinuum generation in several suspended-core soft-Glass photonic crystal fibers pumped by an optical parametric oscillator tunable around 1550 nm. The fibers were drawn from lead-bismuth-gallium-cadmium-Oxide Glass (PBG-81) featuring a wide transmission window from 0.5 to 2.7 μm and a high nonlinear refractive index up to 4.3·1019 m2/W. They have been specifically designed with a microscale suspended hexagonal core for efficient supercontinuum generation around 1550 nm. We experimentally demonstrate two supercontinuum spectra spanning from 1.07 to 2.31 μm and 0.89 to 2.46 μm by pumping two PCFs in both normal and anomalous dispersion regimes, respectively. We also numerically model the group velocity dispersion curves for these fibers from their scanning electron microscope images. The results are in good agreement with numerical simulations based on the generalized nonlinear Schrödinger equation including the pump frequency chirp.
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infrared supercontinuum generation in soft Glass photonic crystal fibers pumped at 1560 nm
Optical Materials Express, 2014Co-Authors: Grzegorz Sobon, Mariusz Klimczak, Jaroslaw Sotor, Karol Krzempek, Dariusz Pysz, Ryszard Stepien, Tadeusz Martynkien, Krzysztof M Abramski, Ryszard BuczynskiAbstract:In this work we present results on supercontinuum (SC) generation in a photonic crystal fiber (PCF) fabricated from lead-bismuth-gallium-Oxide Glass (PBG-08). Due to high refractive index, high nonlinearity and high transmittance, the PBG-08 Glass-based fibers seem to be excellent media for broad supercontinuum generation in the infrared spectral region. In our experiment, a short-length piece of PCF (5-6 cm) is pumped by a femtosecond chirped pulse amplification (CPA) setup, which may be seeded by two different fiber-based oscillators. This compact and cost-effective system allows to generate SC spanning from 900 to 2400 nm. The paper describes in detail the fabrication process of the fiber, as well as the SC generation results.
