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Takahiko Kawahara

Observed names: Kawahara, Takahiko, T. Kawahara
ORCID: 0009-0006-1907-268X
Observed ORCID: 0009-0006-1907-268X
OpenAlex ID: A5037478355
Sputter epitaxy of ScAlN films on GaN high electron mobility transistor structures
2025 · Tomoya Okuda, Shunsuke Ota, et al. · Applied Physics Letters · 21
Effect of growth temperature on the structural and electrical properties of sputter-epitaxial ScAlN on AlGaN/AlN/GaN heterostructures
2025 · Shunsuke Ota, Tomoya Okuda, et al. · APL Materials · 11
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Highly reliable AlGaInAs buried heterostructure lasers for uncooled 10 Gb/s direct modulation
2005 · N. Ikoma, T. Kawahara, et al. · Optical Fiber Communication Conference · 8
High performance type II superlattice focal plane array with 6μm cutoff wavelength
2016 · Kouhei Miura, Ken-ichi Machinaga, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 7
Structural evolution in sputter-epitaxial ScAlN films on GaN/SiC substrates
2025 · Seiya Fukuda, Takahiko Kawahara, et al. · Japanese Journal of Applied Physics · 6
Recent development of SWIR focal plane array with InGaAs/GaAsSb type-II quantum wells
2016 · Hiroshi Inada, Kenichi Machinaga, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 6
InGaAs/GaAsSb type-II quantum-well focal plane array with cutoff-wavelength of 2.5 μm
2017 · T. Kawahara, K. Machinaga, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 5
Enhanced transport properties in GaN heterostructures with sputter-epitaxy-grown ScAlN barriers via thermal annealing
2025 · Tomoya Okuda, Shunsuke Ota, et al. · Applied Physics Letters · 4
Scattering mechanism of 2DEG in ScAlN/GaN heterostructures grown by plasma-assisted molecular beam epitaxy
2026 · Kouei Kubota, Yusuke Wakamoto, et al. · Applied Physics Letters · 3
High-performance extended SWIR photodetectors using strain compensated InGaAs/GaAsSb type-II quantum wells
2019 · Kazuya Sugimura, Takashi Go, et al. · Quantum Sensing and Nano Electronics and Photonics · 3
Stray light suppression in InGaAs/GaAsSb type-II FPA
2016 · Sundararajan Balasekaran, Masaki Migita, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2
High-density two-dimensional electron gas in ScAlN/GaN heterostructures grown by sputter epitaxy with enhanced metal supply
2026 · Tomoya Okuda, Kouei Kubota, et al. · Applied Physics Express · 1
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Development of InGaAs/GaAsSb type-II QW SWIR focal plane array with cutoff-wavelength of 2.5 µm (Conference Presentation)
2017 · Hiroshi Inada, Kenichi Machinaga, et al. · 1
Effect of Sc-composition sequence on the structural properties of sputter-epitaxial ScAlN multilayers on GaN
2026 · Nobuto Mimasaka, Kazuhisa Ikeda, et al. · Japanese Journal of Applied Physics
Supplementary Material
2026 · Kouei Kubota, Yusuke Wakamoto, et al. · AIP Publishing
Scattering mechanism of 2DEG in ScAlN/GaN Heterostructures Grown by Plasma-Assisted Molecular Beam Epitaxy
2026 · Takuya Maeda, Takahiko Kawahara, et al. · AIP Publishing
Erratum: “Enhanced transport properties in GaN heterostructures with sputter-epitaxy-grown ScAlN barriers via thermal annealing” [Appl. Phys. Lett. 127 , 182103 (2025)]
2026 · Tomoya Okuda, Shunsuke Ota, et al. · Applied Physics Letters
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Enhanced transport properties in GaN heterostructures withsputter-epitaxy-grown ScAlN barriers via thermal annealing
2026 · Toyama, Satoko, Kawahara, Takahiko, et al. · AIP Publishing
Demonstration of sputtered ScAlN/MOVPE-AlGaN/AlN/GaN HEMT
2025 · Takuya Maeda, Yusuke Wakamoto, et al. · Conference digest
Temperature dependence of dark current characteristics of InAs/GaSb type-II superlattice photodiode
2016 · Sundararajan Balasekaran, K. Miura, et al. · The Japan Society of Applied Physics
Recent development of SWIR focal plane array with InGaAs/GaAsSb type-II quantum wells
2016 · Hiroshi Inada, Ken-ichi Machinaga, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Works count: 25
Citation count: 78
H-index: 6
I10-index: 2
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