E
Eiji J. Takahashi
Researcher at Kanazawa Medical University
Publications - 259
Citations - 4260
Eiji J. Takahashi is an academic researcher from Kanazawa Medical University. The author has contributed to research in topics: Laser & High harmonic generation. The author has an hindex of 30, co-authored 237 publications receiving 3855 citations. Previous affiliations of Eiji J. Takahashi include National Institutes of Natural Sciences, Japan & Iwate Medical University.
Papers
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Journal ArticleDOI
Attosecond nonlinear optics using gigawatt-scale isolated attosecond pulses
TL;DR: A robust generation method of intense isolated attosecond pulses is proposed and demonstrated, which enable us to perform a nonlinear attose Cond optics experiment and is the shortest and highest-energy pulse ever with the ability to induce nonlinear phenomena.
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Coherent water window x ray by phase-matched high-order harmonic generation in neutral media.
TL;DR: The precept of the design parameter for a single-shot live-cell imaging by contact microscopy is presented and the proposed generation scheme, combining a 1.6 microm laser driver and a neutral Ne gas medium, is efficient and scalable in output yields of the water window x ray.
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Generation of highly coherent submicrojoule soft x rays by high-order harmonics
TL;DR: In this article, the authors demonstrated the energy scaling of high-order harmonics using a self-guided beam under the phase-matched condition, and achieved a total output harmonic energy as high as $0.7 \ensuremath{\mu}mathrm{J}$.
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Production of Doubly Charged Helium Ions by Two-Photon Absorption of an Intense Sub-10-fs Soft X-Ray Pulse at 42 eV Photon Energy
TL;DR: The observation of doubly charged helium ions produced by a nonlinear interaction between a helium atom and photons with a photon energy of 42 eV which are generated with the 27th harmonic of a femtosecond pulse from a Ti:sapphire laser is reported.
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Infrared Two-Color Multicycle Laser Field Synthesis for Generating an Intense Attosecond Pulse
TL;DR: The proposed method enables the requirements for the pump pulse duration to be relaxed but also to reduce ionization of the harmonic medium, which opens the door to create an intense isolated attosecond pulse using a conventional femtosecond laser system.