Continuous Wave Operation of GaN Vertical Cavity Surface Emitting Lasers at Room Temperature

Toshikazu Onishi, O. Imafuji, Kentaro Nagamatsu, +3

IEEE Journal of Quantum Electronics

Wide-bandgap SemiconductorShort Wavelength OpticEngineeringLaser ScienceLaser Physics +14

Optical-loss suppressed InGaN laser diodes using undoped thick waveguide structure

Masao Kawaguchi, O. Imafuji, Shinichiro Nozaki, +4

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Ingan LdsPhotonicsElectrical EngineeringOptical MaterialsEngineering +12

600 mW CW single-mode GaAlAs triple-quantum-well laser with a new index guided structure

O. Imafuji, T. Takayama, H. Suguira, +4

IEEE Journal of Quantum Electronics

EngineeringLaser ScienceLaser ApplicationsLaser PhysicsLaser Material +15

Structural investigation of sapphire surface after nitridation

Tadao Hashimoto, Yoshitami Terakoshi, Masahiro Ishida, +5

Journal of Crystal Growth

Materials ScienceSurface CharacterizationAluminium NitrideEngineeringCorrosion +4

Reduction of Threading Dislocations in GaN on Sapphire by Buffer Layer Annealing in Low-Pressure Metalorganic Chemical Vapor Deposition

Tadao Hashimoto Tadao Hashimoto, Masaaki Yuri, Masahiro Ishida, +4

Japanese Journal of Applied Physics

Materials ScienceMaterials EngineeringWide-bandgap SemiconductorEngineeringSurface Science +6

High power subterahertz electromagnetic wave radiation from GaN photoconductive switch

O. Imafuji, Brahm Pal Singh, Yutaka Hirose, +2

Applied Physics Letters

Short Wavelength OpticEngineeringPower ElectronicsHigh-power LasersAbsolute Energy +14

Drastic reduction of threading dislocation in GaN regrown on grooved stripe structure

M. Ishida, Makoto Ogawa, Kenji Orita, +4

Journal of Crystal Growth

Materials EngineeringMaterials ScienceWide-bandgap SemiconductorEngineeringDislocation Interaction +9

High-power and high-temperature operation of an InGaN laser over 3 W at 85 °C using a novel double-heat-flow packaging technology

Shinichiro Nozaki, Shinji Yoshida, Kazuhiko Yamanaka, +4

Japanese Journal of Applied Physics

EngineeringLaser ScienceLaser ApplicationsLaser MaterialHigh-power Lasers +14

100-mW high-power angled-stripe superluminescent diodes with a new real refractive-index-guided self-aligned structure

T. Takayama, O. Imafuji, Y. Kouchi, +3

IEEE Journal of Quantum Electronics

Photonic DevicePhotonicsSolid-state LightingEngineeringPlanar Active Layer +10

Quantitative study of nitridated sapphire surfaces by x-ray photoelectron spectroscopy

Tadao Hashimoto, Yoshitami Terakoshi, Masaaki Yuri, +4

Journal of Applied Physics

Aluminium NitrideX-ray SpectroscopyEngineeringSmall Diffusion CoefficientMaterials Science +15