The Experts below are selected from a list of 3321 Experts worldwide ranked by ideXlab platform
Daisuke Sonobe - One of the best experts on this subject based on the ideXlab platform.
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synthesis of cdwo4 thin films showing photoluminescence at room temperature by pulsed laser Ablation using photoluminescenceless cdo wo3 mixed oxide targets effect of Plume forming condition and target substrate distance
Applied Surface Science, 1999Co-Authors: Katsumi Tanaka, Daisuke SonobeAbstract:Abstract Photoluminescent CdWO4 thin films were synthesized by pulsed laser Ablation using targets of CdO/WO3 mixed oxide. The Ablation Plume was controlled in the same length by three conditions with different ambient O2 pressure and laser fluence. In addition, target-substrate distance was changed. Properties of photoluminescence, crystal structure, angular distribution of Cd/W ratio and that of W intensity in the films were studied.
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Synthesis of CdWO4 thin films showing photoluminescence at room temperature by pulsed laser Ablation using photoluminescenceless CdO/WO3 mixed oxide targets: effect of Plume forming condition and target-substrate distance
Applied Surface Science, 1999Co-Authors: Katsumi Tanaka, Daisuke SonobeAbstract:Abstract Photoluminescent CdWO4 thin films were synthesized by pulsed laser Ablation using targets of CdO/WO3 mixed oxide. The Ablation Plume was controlled in the same length by three conditions with different ambient O2 pressure and laser fluence. In addition, target-substrate distance was changed. Properties of photoluminescence, crystal structure, angular distribution of Cd/W ratio and that of W intensity in the films were studied.
Tsuneyuki Ozaki - One of the best experts on this subject based on the ideXlab platform.
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Observation of single high-harmonic enhancement by quasi-resonance with a tellurium ion in a laser-Ablation Plume at 29.44 nm
Journal of the Optical Society of America B, 2007Co-Authors: Masayuki Suzuki, Hiroto Kuroda, Rashid A. Ganeev, Motoyoshi Baba, Tsuneyuki OzakiAbstract:We demonstrate the intensity enhancement of a single high-order harmonic (27th harmonic) at 29.44 nm by using lowly charged tellurium ions in a laser-Ablation Plume. The enhancement of a single harmonic is due to multiphoton resonance with a Te II transition having strong oscillator strength. By tuning the wavelength of the pump laser, we found that the enhancement factor depends on the difference between the wavelength of the enhanced harmonic and that of the strong radiative transition. For tellurium, we show that intense single harmonic generation can be generated when the wavelength of the 27th harmonic is closer to the wavelength of the strong transition.
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Enhancement of single high harmonic generation from Sn and Sb Ion in laser-Ablation Plume at XUV region
2007 Quantum Electronics and Laser Science Conference, 2007Co-Authors: Masayuki Suzuki, Hiroto Kuroda, Rashid A. Ganeev, Motoyoshi Baba, Tsuneyuki OzakiAbstract:We demonstrated a single-high-harmonic enhancement at 47 and 37 nm by using the laser-Ablation Plume. Such an enhancement was caused by the multiphoton resonance with the strong radiative transition of the Sn and Sb ions.
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anomalous enhancement of a single high order harmonic by using a laser Ablation tin Plume at 47 nm
Optics Letters, 2006Co-Authors: Masayuki Suzuki, Hiroto Kuroda, Rashid A. Ganeev, Motoyoshi Baba, Tsuneyuki OzakiAbstract:We have successfully demonstrated intensity enhancement of a single high-order harmonic at a wavelength of 46.76 nm by using low-ionized tin ions in a laser-Ablation Plume as the nonlinear medium. The Ablation Plume was produced by irradiating a solid tin target with a 10 mJ energy picosecond laser pulse. Strong 17th-harmonic generation at a wavelength of 46.76 nm was observed with a conversion efficiency of about 10−4. We attribute the strong enhancement of the single high-order harmonic to multiphoton resonance with a strong radiative transition of the Sn II ion.
Masayuki Suzuki - One of the best experts on this subject based on the ideXlab platform.
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Graphene-containing plasma: a medium for the coherent extreme ultraviolet light generation
JETP Letters, 2014Co-Authors: Rashid A. Ganeev, Masayuki Suzuki, M. Baba, Sh. Yoneya, Hiroto KurodaAbstract:We demonstrate the high-order harmonic generation of femtosecond pulses in the laser Ablation Plume containing the graphene nanoparticles. The harmonics up to the 33rd order were observed. The presence of graphene nanoparticles in the laser plasma was confirmed during the analysis of Ablation debris. The comparative studies of harmonic generation from the Ablation of graphene, carbon nanotubes, and diamond nanoparticles showed the advanced properties of the latter medium.
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Observation of single high-harmonic enhancement by quasi-resonance with a tellurium ion in a laser-Ablation Plume at 29.44 nm
Journal of the Optical Society of America B, 2007Co-Authors: Masayuki Suzuki, Hiroto Kuroda, Rashid A. Ganeev, Motoyoshi Baba, Tsuneyuki OzakiAbstract:We demonstrate the intensity enhancement of a single high-order harmonic (27th harmonic) at 29.44 nm by using lowly charged tellurium ions in a laser-Ablation Plume. The enhancement of a single harmonic is due to multiphoton resonance with a Te II transition having strong oscillator strength. By tuning the wavelength of the pump laser, we found that the enhancement factor depends on the difference between the wavelength of the enhanced harmonic and that of the strong radiative transition. For tellurium, we show that intense single harmonic generation can be generated when the wavelength of the 27th harmonic is closer to the wavelength of the strong transition.
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Enhancement of single high harmonic generation from Sn and Sb Ion in laser-Ablation Plume at XUV region
2007 Quantum Electronics and Laser Science Conference, 2007Co-Authors: Masayuki Suzuki, Hiroto Kuroda, Rashid A. Ganeev, Motoyoshi Baba, Tsuneyuki OzakiAbstract:We demonstrated a single-high-harmonic enhancement at 47 and 37 nm by using the laser-Ablation Plume. Such an enhancement was caused by the multiphoton resonance with the strong radiative transition of the Sn and Sb ions.
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seventy first harmonic generation from doubly charged ions in preformed laser Ablation vanadium Plume at 110 ev
Optics Express, 2007Co-Authors: Masayuki Suzuki, Rashid A. Ganeev, Motoyoshi Baba, Luc Bertrand Elouga Bom, T Ozaki, H KurodaAbstract:We have demonstrated a generation of 71st harmonic at a photon energy of 110 eV (wavelength 11.2 nm) using low ionized vanadium ions in a laser-Ablation Plume. The conversion efficiency of this harmonic was estimated to be 1.6×10-7. Such high harmonic generation occurred from the interaction of a femtosecond laser pulse with a doubly charged ion, which has high third ionization potential. This work shows the extension of HHG cutoff energy can be achieved by using the doubly charged ion.
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anomalous enhancement of a single high order harmonic by using a laser Ablation tin Plume at 47 nm
Optics Letters, 2006Co-Authors: Masayuki Suzuki, Hiroto Kuroda, Rashid A. Ganeev, Motoyoshi Baba, Tsuneyuki OzakiAbstract:We have successfully demonstrated intensity enhancement of a single high-order harmonic at a wavelength of 46.76 nm by using low-ionized tin ions in a laser-Ablation Plume as the nonlinear medium. The Ablation Plume was produced by irradiating a solid tin target with a 10 mJ energy picosecond laser pulse. Strong 17th-harmonic generation at a wavelength of 46.76 nm was observed with a conversion efficiency of about 10−4. We attribute the strong enhancement of the single high-order harmonic to multiphoton resonance with a strong radiative transition of the Sn II ion.
Rashid A. Ganeev - One of the best experts on this subject based on the ideXlab platform.
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Graphene-containing plasma: a medium for the coherent extreme ultraviolet light generation
JETP Letters, 2014Co-Authors: Rashid A. Ganeev, Masayuki Suzuki, M. Baba, Sh. Yoneya, Hiroto KurodaAbstract:We demonstrate the high-order harmonic generation of femtosecond pulses in the laser Ablation Plume containing the graphene nanoparticles. The harmonics up to the 33rd order were observed. The presence of graphene nanoparticles in the laser plasma was confirmed during the analysis of Ablation debris. The comparative studies of harmonic generation from the Ablation of graphene, carbon nanotubes, and diamond nanoparticles showed the advanced properties of the latter medium.
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Enhanced high-order-harmonic generation in a carbon Ablation Plume
Physical Review A, 2012Co-Authors: Rashid A. Ganeev, Tobias Witting, C. Hutchison, F. Frank, P. V. Redkin, W. A. Okell, Dang Yuan Lei, Tyler Roschuk, Stefan A. Maier, Jon P. MarangosAbstract:We report on the observation of enhanced high harmonics from a carbon plasma using sub-5-fs laser pulses. The efficiency of harmonic generation in the range of 14\char21{}25 eV was up to five times higher in the case of a plasma medium (graphite Ablation) compared with gas (argon) under similar experimental conditions. The harmonic enhancement can be attributed to the presence of carbon nanoparticles in the Ablation Plumes.
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Observation of single high-harmonic enhancement by quasi-resonance with a tellurium ion in a laser-Ablation Plume at 29.44 nm
Journal of the Optical Society of America B, 2007Co-Authors: Masayuki Suzuki, Hiroto Kuroda, Rashid A. Ganeev, Motoyoshi Baba, Tsuneyuki OzakiAbstract:We demonstrate the intensity enhancement of a single high-order harmonic (27th harmonic) at 29.44 nm by using lowly charged tellurium ions in a laser-Ablation Plume. The enhancement of a single harmonic is due to multiphoton resonance with a Te II transition having strong oscillator strength. By tuning the wavelength of the pump laser, we found that the enhancement factor depends on the difference between the wavelength of the enhanced harmonic and that of the strong radiative transition. For tellurium, we show that intense single harmonic generation can be generated when the wavelength of the 27th harmonic is closer to the wavelength of the strong transition.
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Enhancement of single high harmonic generation from Sn and Sb Ion in laser-Ablation Plume at XUV region
2007 Quantum Electronics and Laser Science Conference, 2007Co-Authors: Masayuki Suzuki, Hiroto Kuroda, Rashid A. Ganeev, Motoyoshi Baba, Tsuneyuki OzakiAbstract:We demonstrated a single-high-harmonic enhancement at 47 and 37 nm by using the laser-Ablation Plume. Such an enhancement was caused by the multiphoton resonance with the strong radiative transition of the Sn and Sb ions.
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seventy first harmonic generation from doubly charged ions in preformed laser Ablation vanadium Plume at 110 ev
Optics Express, 2007Co-Authors: Masayuki Suzuki, Rashid A. Ganeev, Motoyoshi Baba, Luc Bertrand Elouga Bom, T Ozaki, H KurodaAbstract:We have demonstrated a generation of 71st harmonic at a photon energy of 110 eV (wavelength 11.2 nm) using low ionized vanadium ions in a laser-Ablation Plume. The conversion efficiency of this harmonic was estimated to be 1.6×10-7. Such high harmonic generation occurred from the interaction of a femtosecond laser pulse with a doubly charged ion, which has high third ionization potential. This work shows the extension of HHG cutoff energy can be achieved by using the doubly charged ion.
Katsumi Tanaka - One of the best experts on this subject based on the ideXlab platform.
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synthesis of cdwo4 thin films showing photoluminescence at room temperature by pulsed laser Ablation using photoluminescenceless cdo wo3 mixed oxide targets effect of Plume forming condition and target substrate distance
Applied Surface Science, 1999Co-Authors: Katsumi Tanaka, Daisuke SonobeAbstract:Abstract Photoluminescent CdWO4 thin films were synthesized by pulsed laser Ablation using targets of CdO/WO3 mixed oxide. The Ablation Plume was controlled in the same length by three conditions with different ambient O2 pressure and laser fluence. In addition, target-substrate distance was changed. Properties of photoluminescence, crystal structure, angular distribution of Cd/W ratio and that of W intensity in the films were studied.
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Synthesis of CdWO4 thin films showing photoluminescence at room temperature by pulsed laser Ablation using photoluminescenceless CdO/WO3 mixed oxide targets: effect of Plume forming condition and target-substrate distance
Applied Surface Science, 1999Co-Authors: Katsumi Tanaka, Daisuke SonobeAbstract:Abstract Photoluminescent CdWO4 thin films were synthesized by pulsed laser Ablation using targets of CdO/WO3 mixed oxide. The Ablation Plume was controlled in the same length by three conditions with different ambient O2 pressure and laser fluence. In addition, target-substrate distance was changed. Properties of photoluminescence, crystal structure, angular distribution of Cd/W ratio and that of W intensity in the films were studied.
