Kazuaki Sakoda

Summary

Affiliation: National Institute for Materials Science
Country: Japan

Publications

  1. doi request reprint Proof of the universality of mode symmetries in creating photonic Dirac cones
    Kazuaki Sakoda
    Photonic Materials Unit, National Institute for Materials Science, 1 1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 20:25181-94. 2012
  2. doi request reprint Double Dirac cones in triangular-lattice metamaterials
    Kazuaki Sakoda
    Photonic Materials Unit, National Institute for Materials Science, 1 1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 20:9925-39. 2012
  3. ncbi request reprint Dirac cone in two- and three-dimensional metamaterials
    Kazuaki Sakoda
    Photonic Materials Unit, National Institute for Materials Science, 1 1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 20:3898-917. 2012
  4. pmc Effects of low-temperature capping on the optical properties of GaAs/AlGaAs quantum wells
    Masafumi Jo
    National Institute for Materials Science, 1 2 1 Sengen, Tsukuba, Ibaraki 305 0047, Japan
    Nanoscale Res Lett 6:76. 2011
  5. doi request reprint Role of structural electromagnetic resonances in a steerable left-handed antenna
    Kazuaki Sakoda
    Quantum Dot Research Center, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
    Opt Express 18:27371-86. 2010
  6. doi request reprint Analytical study of two-dimensional degenerate metamaterial antennas
    Kazuaki Sakoda
    Photonic Materials Unit, National Institute for Materials Science, 1 1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 19:13899-921. 2011
  7. ncbi request reprint Self-assembly of concentric quantum double rings
    Takaaki Mano
    Nanomaterials Laboratory, National Institute for Materials Science, 1 2 1 Sengen, Tsukuba, Ibaraki 305 0047, Japan
    Nano Lett 5:425-8. 2005
  8. ncbi request reprint Doubly enhanced spontaneous emission due to increased photon density of states at photonic band edge frequencies
    Keiji Kuroda
    Quantum Dot Research Center, National Institute for Materials Science, 1 1 Namiki Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 17:13168-77. 2009

Collaborators

Detail Information

Publications8

  1. doi request reprint Proof of the universality of mode symmetries in creating photonic Dirac cones
    Kazuaki Sakoda
    Photonic Materials Unit, National Institute for Materials Science, 1 1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 20:25181-94. 2012
    ..All these findings clearly show that the presence or absence of the Dirac cone in the zone center is solely determined by the spatial symmetry of the two modes...
  2. doi request reprint Double Dirac cones in triangular-lattice metamaterials
    Kazuaki Sakoda
    Photonic Materials Unit, National Institute for Materials Science, 1 1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 20:9925-39. 2012
    ..To the best of the author's knowledge, this is the first prediction of the presence of a double Dirac cone in metamaterials...
  3. ncbi request reprint Dirac cone in two- and three-dimensional metamaterials
    Kazuaki Sakoda
    Photonic Materials Unit, National Institute for Materials Science, 1 1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 20:3898-917. 2012
    ..This is the first theoretical prediction of the presence of the Dirac cone in the three-dimensional periodic structure...
  4. pmc Effects of low-temperature capping on the optical properties of GaAs/AlGaAs quantum wells
    Masafumi Jo
    National Institute for Materials Science, 1 2 1 Sengen, Tsukuba, Ibaraki 305 0047, Japan
    Nanoscale Res Lett 6:76. 2011
    ..In addition, the optical quality can be restored by post-growth annealing without any structural change, except for the 200°C-capped sample...
  5. doi request reprint Role of structural electromagnetic resonances in a steerable left-handed antenna
    Kazuaki Sakoda
    Quantum Dot Research Center, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
    Opt Express 18:27371-86. 2010
    ..We also show that the refraction angle can be designed by changing the lattice constant of the arrayed unit structures, since the band width is modified due to the change in the electromagnetic transfer integral...
  6. doi request reprint Analytical study of two-dimensional degenerate metamaterial antennas
    Kazuaki Sakoda
    Photonic Materials Unit, National Institute for Materials Science, 1 1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 19:13899-921. 2011
    ..This design of metamaterial steerable antennas is advantageous in the optical frequency...
  7. ncbi request reprint Self-assembly of concentric quantum double rings
    Takaaki Mano
    Nanomaterials Laboratory, National Institute for Materials Science, 1 2 1 Sengen, Tsukuba, Ibaraki 305 0047, Japan
    Nano Lett 5:425-8. 2005
    ..Varying the growth process conditions can control each ring's size. Photoluminescence spectra emitted from an individual quantum ring complex show peculiar quantized levels that are specified by the carriers' orbital trajectories...
  8. ncbi request reprint Doubly enhanced spontaneous emission due to increased photon density of states at photonic band edge frequencies
    Keiji Kuroda
    Quantum Dot Research Center, National Institute for Materials Science, 1 1 Namiki Tsukuba, Ibaraki 305 0044, Japan
    Opt Express 17:13168-77. 2009
    ..Theoretical emission profiles given by the weak modulation approximation agreed well with the experimental observations...