Keio University

Presentations

Hayase, Junko

1-20 items (total 494)
2026.08

Interlayer Exciton Dynamics in WS2/WSe2 Heterobilayer Resonantly Probed by Transient Reflectance Spectroscopy

Speaker
R. Tamaki, T. Akazawa, Z. Li, S. Matano, K. Watanebe, T. Taniguchi, K. Matsuda and J. Ishi-Hayase
Conference Title
[Conference Category International presentation] Conference Title The 37th International Conference on the Physics of Semiconductors 2026 Dates 2026.08.16 - 2026.08.21
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Poster presentation
2026.08

Wide-range Frequency-Tunable CW Magnetometry beyond 100 MHz via RF-Dressed States of NV Centers under a Strong Transverse Magnetic Field

Speaker
R. Okaniwa, Y. Matsuzaki, R. Suzuki, N. Tokuda and J. Ishi-Hayase
Conference Title
[Conference Category International presentation] Conference Title The 37th International Conference on the Physics of Semiconductors 2026 Dates 2026.08.16 - 2026.08.21
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Poster presentation
2026.08

Analysis of Point Sensing at a Fixed Microwave Frequency Using RF-Dressed States in Diamond NV Centers

Speaker
R. Suzuki, T. Mikawa, R. Okaniwa, Y. Matsuzaki, N. Tokuda and J. Ishi-Hayase
Conference Title
[Conference Category International presentation] Conference Title The 37th International Conference on the Physics of Semiconductors 2026 Dates 2026.08.16 - 2026.08.21
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Poster presentation
2026.08

Enhancement of Femtosecond Photon Echoes in InAs Quantum Dots Using Chirped Pulses and Time-Resolved Measurements via Frequency Up-conversion

Speaker
Y. Kochi, R. Ishihara, S. Kurimura, K. Akahane, and J. Ishi-Hayase
Conference Title
[Conference Category International presentation] Conference Title The 37th International Conference on the Physics of Semiconductors 2026 Dates 2026.08.16 - 2026.08.21
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Oral presentation (general)
2026.08

Frequency and Axis Selective AC Magnetic Field Imaging by Continuous-Wave Scanning NV Magnetometry Using Erectoron spin RF-dressed States

Speaker
S. Komuro, R. Okaniwa, K. Okura, K. Hayashi, T. An, and J. Ishi-Hayase
Conference Title
[Conference Category International presentation] Conference Title The 37th International Conference on the Physics of Semiconductors 2026 Dates 2026.08.16 - 2026.08.21
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Poster presentation
2026.08

Rapid and High Sensitivity Temperature Imaging Using Electron-spin RF-Dressed States of Diamond NV Centers

Speaker
Y. Nagao, Y. Itabashi, Y. Matsuzaki, N. Tokuda and J. Ishi-Hayase
Conference Title
[Conference Category International presentation] Conference Title The 37th International Conference on the Physics of Semiconductors 2026 Dates 2026.08.16 - 2026.08.21
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Poster presentation
2026.08

High-SNR and Femtosecond-Resolved Measurement of Photon Echoes from InAs Quantum Dots Using Up-Conversion Single-Photon Lock-In Detection

Speaker
R. Ishihara, Y. Kochi, R. Tamaki, S. Kurimura, K. Akahane and J. Ishi-Hayase
Conference Title
[Conference Category International presentation] Conference Title The 37th International Conference on the Physics of Semiconductors 2026 Dates 2026.08.16 - 2026.08.21
Invitation Status
Without
Presentation Format
International presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Poster presentation
2026.07

量子ドット量子メモリと超高速単一光子検出技術

Speaker
石原 怜,河内 優太,玉置 亮,中川 桂一,栗村 直,赤羽 浩一,早瀬 潤子
Conference Title
[Conference Category Domestic presentation] Dates 2026.07.03 - 2026.07.03
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Poster presentation
2026.07

ダイヤモンド中電子スピンの二重共鳴現象を用いた量子センシング

Speaker
長尾 結希,板橋 佑真,岡庭 龍聖,小室 俊太郎,鈴木 琉生,大倉 和真,松崎 雄一郎,徳田 規夫,林 都隆,安 東秀,早瀬 潤子
Conference Title
[Conference Category Domestic presentation] Dates 2026.07.03 - 2026.07.03
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Poster presentation
2026.05

Formation and Spatial Distribution Analysis of Nitrogen-Vacancy Centers in Diamond on {111}-Faceted Inverted Pyramid Holes

Speaker
K. Imuta, Y. Oikawa, R. Suzuki, K. Hayashi, N. Tokuda, H. Watanabe, J. Ishi-Hayase
Conference Title
[Conference Category Domestic presentation] Conference Title OIST-Keio Showcase Talk Series Vol. 11: Resonance Matters - Micro-Optical Resonators for Quantum, Bio, and Energy Applications Dates 2026.05.11 - 2026.05.11
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Poster presentation
2026.05

Analysis of CW-ODMR Signals in Ensemble Nitrogen-Vacancy Center Systems

Speaker
R. Suzuki, T. Mikawa, R. Okaniwa, Y. Matsuzaki, N. Tokuda, J. Ishi-Hayase
Conference Title
[Conference Category Domestic presentation] Conference Title OIST-Keio Showcase Talk Series Vol. 11: Resonance Matters - Micro-Optical Resonators for Quantum, Bio, and Energy Applications Dates 2026.05.11 - 2026.05.11
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Poster presentation
2026.05

超放射を用いた量子計測のノイズ耐性評価

Speaker
佐久間 泰成,松崎 雄一郎,Hoi-Kwan Lau,早瀬 潤子
Conference Title
[Conference Category Domestic presentation] Dates 2026.05.27 - 2026.05.29
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Oral presentation (general)
2026.05

遠隔イオントラップ系間のGottesman-Kitaev-Preskill もつれ生成

Speaker
青木 陽,丹治 和史,桐生 翔平,武岡 正裕,早瀬 潤子
Conference Title
[Conference Category Domestic presentation] Dates 2026.05.27 - 2026.05.29
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Oral presentation (general)

Coherent Storage of Femtosecond Weak Signals in InAs Quantum Dots and Time Resolving Measurement via Frequency Up-conversion

Speaker
Y. Kochi, M. C. Hornauer, S. Kurimura, K. Akahane, J. Ishi-Hayase
Conference Title
[Conference Category International presentation] Conference Title Hybrid Quantum Systems and Nanotechnologies 2025 Dates 2025.10.27 - 2025.10.29
Invitation Status
With
Presentation Format
International presentation
Language of Publication
English
International Co-authorship
No
Conference Category
Oral presentation (invited, special)
2026.03

アンシラ駆動ブラインド変分量子固有値ソルバーの実験実証

Speaker
田上 真嗣,宇都宮 健太,清水 耀 ,永井 雅貴,早瀬 潤子,佐藤 貴彦,武岡 正裕
Conference Title
[Conference Category Domestic presentation] Dates 2026.03.15 - 2026.03.18
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Oral presentation (general)
2026.03

単一光子ロックイン検出を用いたInAs量子ドット集合体からの微弱フェムト秒フォトンエコー信号高時間分解測定

Speaker
河内 優太,石原 怜,栗村 直,赤羽 浩一,早瀬 潤子
Conference Title
[Conference Category Domestic presentation] Dates 2026.03.15 - 2026.03.18
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Oral presentation (general)
2026.03

周波数上方変換を用いたフェムト秒空間多重単一光子パルスの計測

Speaker
石原 怜,河内 優太,玉置 亮,栗村 直,島田 啓太郎,中川 桂一,早瀬 潤子
Conference Title
[Conference Category Domestic presentation] Dates 2026.03.15 - 2026.03.18
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Oral presentation (general)
2026.03

単層ヘテロWS2/WSe2における低温顕微過渡反射分光

Speaker
玉置 亮,赤澤 徹,Zhiwei Li,俣野 眞一朗,渡邊 賢司,谷口 尚,松田 一成,早瀬 潤子
Conference Title
[Conference Category Domestic presentation] Dates 2026.03.15 - 2026.03.18
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Oral presentation (general)
2026.03

強垂直磁場とドレスト状態を利用した連続波方式による数百MHzの広帯域磁場センシング

Speaker
岡庭 龍聖,松崎 雄一郎,鈴木 琉生,徳田 規夫,早瀬 潤子
Conference Title
[Conference Category Domestic presentation] Dates 2026.03.15 - 2026.03.18
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Oral presentation (general)
2026.03

ダイヤモンド量子センサーヘッドを用いた磁場イメージセンシング

Speaker
吉田 翔太朗,板橋 佑真,早瀬 潤子,林 寛,徳田 規夫,岸田 裕司
Conference Title
[Conference Category Domestic presentation] Dates 2026.03.15 - 2026.03.18
Invitation Status
Without
Presentation Format
Domestic presentation
Language of Publication
Japanese
International Co-authorship
No
Conference Category
Oral presentation (general)