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Ablation Plume

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Daisuke Sonobe – One of the best experts on this subject based on the ideXlab platform.

Tsuneyuki Ozaki – One of the best experts on this subject based on the ideXlab platform.

Masayuki Suzuki – One of the best experts on this subject based on the ideXlab platform.

Rashid A. Ganeev – One of the best experts on this subject based on the ideXlab platform.

  • Graphene-containing plasma: a medium for the coherent extreme ultraviolet light generation
    JETP Letters, 2014
    Co-Authors: Rashid A. Ganeev, Masayuki Suzuki, M. Baba, Sh. Yoneya, Hiroto Kuroda
    Abstract:

    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.

  • Enhanced high-order-harmonic generation in a carbon Ablation Plume
    Physical Review A, 2012
    Co-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. Marangos
    Abstract:

    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.

  • 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, 2007
    Co-Authors: Masayuki Suzuki, Motoyoshi Baba, Hiroto Kuroda, Rashid A. Ganeev, Tsuneyuki Ozaki
    Abstract:

    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.

Katsumi Tanaka – One of the best experts on this subject based on the ideXlab platform.