Prof. Junko Ishi-Hayase Profile

Prof. Junko Ishi-Hayase

Associate Professor at Keio Univ

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Publications (7)

Proceedings Article | 8 March 2024 Presentation + Paper

Improved efficiency of generating femtosecond photon echoes from quantum dots using chirped pulses and time resolved measurement by frequency up-conversion technique

Yuta Kochi, Yutaro Kinoshita, Sunao Kurimura, Kouichi Akahane, Junko Ishi-Hayase

Proceedings Volume 12884, 128840E (2024) https://doi.org/10.1117/12.3002122

KEYWORDS: Quantum memory, Pulse signals, Quantum dots, Femtosecond phenomena, Quantum efficiency, Quantum reading, Quantum measurement, Inhomogeneities, Quantum signals

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Proceedings Article | 15 March 2023 Poster + Paper

Femtosecond time-bin pulse transfer and retrieval on photon-echo-based quantum memory using quantum dots

Yuta Kochi, Yutaro Kinoshita, Sunao Kurimura, Kouichi Akahane, Junko Ishi-Hayase

Proceedings Volume 12430, 1243014 (2023) https://doi.org/10.1117/12.2649556

KEYWORDS: Quantum memory, Quantum dots, Pulse signals, Femtosecond phenomena, Femtosecond pulse shaping, Quantum reading, Picosecond phenomena, Time correlated photon counting, Inhomogeneities, Quantum data

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Wide-field AC magnetic field imaging using continuous-wave optically detected magnetic resonance of nitrogen-vacancy centers in diamond

Karl J. Hallbäck, Tatsuma Yamaguchi, Yuichiro Matsuzaki, Hideyuki Watanabe, Norikazu Mizuochi, Junko Ishi-Hayase

Proceedings Volume 11700, 117004A (2021) https://doi.org/10.1117/12.2577024

KEYWORDS: Magnetism, Magnetic sensors, Diamond, Magnetic resonance imaging, Continuous wave operation, Signal detection, Cameras, CCD cameras, Time metrology, Spatial resolution

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Proceedings Article | 5 March 2019 Presentation

Photon echo generation using chirped pulses in quantum dots (Conference Presentation)

Masanari Watanabe, Naoto Aonuma, Kouichi Akahane, Junko Ishi-Hayase

Proceedings Volume 10916, 109160G (2019) https://doi.org/10.1117/12.2508198

KEYWORDS: Quantum information, Quantum dots, Interfaces, Information technology, Terahertz radiation, Telecommunications, Excitons, Femtosecond phenomena, Numerical simulations

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Proceedings Article | 4 March 2019 Paper

Quantum state tomography of ultrafast optical pulses at telecom wavelength by broadband balanced homodyne detection

Terence Blésin, Rei Matsushita, Kouichi Akahane, Junko Ishi-Hayase

Proceedings Volume 10933, 109330V (2019) https://doi.org/10.1117/12.2507827

KEYWORDS: Homodyne detection, Photons, Oscillators, Ultrafast phenomena, Signal detection, Quantum dots, Reconstruction algorithms, Radon transform, Quantum communications, Tomography

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Proceedings Article | 10 September 2007 Paper

Strain-compensated quantum dots emitting at 1.5 micron: resonant nonlinear optical properties and exciton dynamics

Junko Ishi-Hayase, Kouichi Akahane, Naokatsu Yamamoto, Mamiko Kujiraoka, Kazuhiro Ema, Masahide Sasaki

Proceedings Volume 6779, 677903 (2007) https://doi.org/10.1117/12.732348

KEYWORDS: Excitons, Polarization, Anisotropy, Spectroscopy, Quantum dots, Indium arsenide, Telecommunications, Picosecond phenomena, Crystals, Four wave mixing

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Proceedings Article | 28 February 2006 Paper

Exciton dephasing in strain-compensated self-assembled InAs quantum dots

Junko Ishi-Hayase, Kouichi Akahane, Naokatsu Yamamoto, Mamiko Kujiraoka, Kazuhiro Ema, Masahide Sasaki

Proceedings Volume 6115, 61151O (2006) https://doi.org/10.1117/12.661300

KEYWORDS: Excitons, Indium arsenide, Quantum dots, Picosecond phenomena, Polarization, Gallium arsenide, Anisotropy, Four wave mixing, Crystals, Neodymium

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Showing 5 of 7 publications

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