Dr. Ronel Christian Roca Profile

Dr. Ronel Christian Roca

Assistant Professor at Toyota Technological Institute

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Author

Publications (4)

Proceedings Article | 12 March 2024 Presentation + Paper

Optical spin injection and detection in submonolayer InAs/GaAs nanostructures

Ronel Christian Roca, Itaru Kamiya

Proceedings Volume 12874, 1287409 (2024) https://doi.org/10.1117/12.3002062

KEYWORDS: Nanostructures, Gallium arsenide, Polarization, Indium arsenide, Luminescence, Emission wavelengths, Quantum spin, Wave plates, Spin polarization, Optical testing, Quantum dots, Molecular beam epitaxy, Spintronics, Photoluminescence

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Proceedings Article | 8 March 2024 Poster + Paper

ArF excimer laser activation of Mg-doped GaN small area mesa device

Maria Emma Villamin, Ronel Christian Roca, Itaru Kamiya, Naotaka Iwata

Proceedings Volume 12886, 128860F (2024) https://doi.org/10.1117/12.3002082

KEYWORDS: Laser irradiation, Annealing, Gallium nitride, Excimer lasers, Semiconducting wafers, Atomic force microscopy, Ultraviolet radiation, Sapphire, Resistance, Pulsed laser operation

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Proceedings Article | 6 September 2017 Presentation + Paper

Progress in the room temperature operation of GaAs-based lateral-type spin-PD in near-infrared wavelength region

R. Roca, N. Nishizawa, K. Nishibayashi, H. Munekata

Proceedings Volume 10357, 103571C (2017) https://doi.org/10.1117/12.2275577

KEYWORDS: Semiconductors, Electrons, Spintronics, Polarization, Integrated optical circuits, Photonic devices, Heterojunctions, Photodiodes

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Proceedings Article | 8 September 2015 Paper

Spin-photonic devices based on crystalline-AlOx / GaAs for emission and detection of circular polarized light

H. Munekata, M. Aoyama, R. Roca, K. Nishibayashi, N. Nishizawa

Proceedings Volume 9551, 955120 (2015) https://doi.org/10.1117/12.2187003

KEYWORDS: Iron, Switching, Light emitting diodes, Electroluminescence, Crystals, Polarization, Gallium arsenide, Electrodes, Electrons, Spin polarization

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