Photonic crystal and quantum dot technologies for all-optical switch and logic device

Kiyoshi Asakawa, Yoshimasa Sugimoto, Yoshinori Watanabe, +16

New Journal of Physics

Quantum PhotonicsOptical MaterialsEngineeringOptoelectronic DevicesIntegrated Circuits +23

Silicon nanowhiskers grown on a hydrogen-terminated silicon {111} surface

Nobuhiko Ozaki, Yutaka Ohno, Seiji Takeda

Applied Physics Letters

Materials ScienceEngineeringHydrogen-terminated SiNanoscale ChemistryNanomaterials +11

Suppression of ferromagnetism due to hole doping in Zn1−xCrxTe grown by molecular-beam epitaxy

Nobuhiko Ozaki, I. Okabayashi, T. Kumekawa, +4

Applied Physics Letters

Magnetic PropertiesEngineeringMagnetic MaterialsMagnetoresistanceBand Gap +17

Broadband waveguide intersection with low crosstalk in two-dimensional photonic crystal circuits by using topology optimization

Yoshinori Watanabe, Yoshimasa Sugimoto, Naoki Ikeda, +5

Optics Express

Photonic DevicePhotonicsEngineeringOptical PropertiesTopology Optimization +10

High transmission recovery of slow light in a photonic crystal waveguide using a hetero groupvelocity waveguide

Nobuhiko Ozaki, Yoshinori Kitagawa, Yoshiaki Takata, +5

Optics Express

PhotonicsEngineeringPhotonic Crystal WaveguideOptical Transmission SystemHigh Transmission +12

Growth and magnetic properties of novel ferromagnetic semiconductor (Zn, Cr)Te

Shinji Kuroda, Nobuhiko Ozaki, Nozomi Nishizawa, +3

Science and Technology of Advanced Materials

Magnetic PropertiesEngineeringAbstractabstractmagnetic PropertiesZn1–xcrxte Thin FilmsMagnetic Materials +15

Misleading fringes in TEM images and diffraction patterns of Si nanocrystallites

Hideo Kohno, Nobuhiko Ozaki, Hideto Yoshida, +2

Crystal Research and Technology

EngineeringMicroscopyElectron DiffractionSilicon On InsulatorElectron Microscopy +16

Superluminescent diode with a broadband gain based on self-assembled InAs quantum dots and segmented contacts for an optical coherence tomography light source

Nobuhiko Ozaki, David Childs, J. Sarma, +8

Journal of Applied Physics

Optical MaterialsQuantum PhotonicsEngineeringOptoelectronic DevicesIntegrated Circuits +21

Topology optimization of waveguide bends with wide, flat bandwidth in air-bridge-type photonic crystal slabs

Yoshinori Watanabe, Naoki Ikeda, Yoshimasa Sugimoto, +5

Journal of Applied Physics

Photonic DevicePhotonicsEngineeringWaveguide BendsOptical Properties +12

Gallium Nitride Superluminescent Light Emitting Diodes for Optical Coherence Tomography Applications

Graham R. Goldberg, Aleksandr Boldin, Sophia M. L. Andersson, +7

IEEE Journal of Selected Topics in Quantum Electronics

EngineeringBespoke Gan SledsBiomedical EngineeringSuper-resolution ImagingOptical Properties +19