K. Koyama

Demonstration of quasi-monoenergetic electron-beam generation in laser-driven plasma acceleration

Eisuke Miura, K. Koyama, Susumu Katō et al. · Applied Physics Letters · 2005 · 134 citations

Photonics, Free-electron Lasers, Electron Density +15

Unusually Small Electrical Resistance of Three-Dimensional Nanoporous Gold in External Magnetic Fields

Takeshi Fujita, Hironari Okada, K. Koyama et al. · Physical Review Letters · 2008 · 87 citations

Engineering, Metal Nanoparticles, Metallic Nanomaterials +19

Direct electron acceleration by stochastic laser fields in the presence of self-generated magnetic fields

M. Tanimoto, Susumu Katō, Eisuke Miura et al. · Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics · 2003 · 42 citations

Free-electron Lasers, Engineering, Physics +15

Monoenergetic electron beam generation from a laser-plasma accelerator

K. Koyama, Masahiro Adachi, Eisuke Miura et al. · Laser and Particle Beams · 2006 · 40 citations

Electron Density, Laser-produced Wakefield, Engineering +11

Inspection of cracks using laser-induced ultrasound with shadow method: Modeling and validation

Cuixiang Pei, Kazuyuki Demachi, Haitao Zhu et al. · Optics & Laser Technology · 2011 · 30 citations

Medical Ultrasound, Engineering, Power Ultrasound +7