Generation and control of time-reversal-symmetry-broken quantum systems by vector electric-field shaped pulses
| Project/Area Number |
15H02117
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
Kazuhiko Misawa 東京農工大学, 工学(系)研究科(研究院), 教授 (80251396)
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| Co-Investigator(Kenkyū-buntansha) |
香取 浩子 東京農工大学, 工学(系)研究科(研究院), 教授 (10211707)
野村 晋太郎 筑波大学, 数理物質系, 准教授 (90271527)
佐藤 正寛 茨城大学, 理学部, 准教授 (90425570)
岡 隆史 大阪大学, 理学(系)研究科(研究院), 研究員 (50421847)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥43,290,000 (Direct Cost: ¥33,300,000、Indirect Cost: ¥9,990,000)
Fiscal Year 2017: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2016: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2015: ¥22,750,000 (Direct Cost: ¥17,500,000、Indirect Cost: ¥5,250,000)
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| Keywords | ベクトル波形整形 / キラリティ電磁場 / エンベロープヘリシティ / 時間反転対称性の破れ / 半導体中キャリアのTHz応答 / 二次元電子系 / 時間分解偏光分光法 / ベクトル波形整形パルス / ねじれ偏光パルス / 偏光状態任意操作 / 時間反転対称性 / ベクトル電場波形整形 |
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| Outline of Final Research Achievements |
We have worked on improvement of vectorial electric field waveform shaping technology and established it as a light source useful for control of chirality-induced quantum systems. To use high pulse energies, we developed a vectorial electric field waveform shaping apparatus using a diffraction grating pair and a Michelson interferometer.
We tried to measure and control the carrier dynamics of the two dimensional electron system under irradiation of the vector-field shaped pulses. Inversion of the direction in photo-current was observed by changing the envelope helicity of the incident pulses.
We consider that this is a successful demonstaration of control in two-dimensional electron system by vector-field shaped pulses proposed in this research plan.
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] Circularly polarized near-field scanning optical microscope for investigations of edge states of a two-dimensional electron system2015
Author(s)
Shintaro Nomura, Syuhei Mamyouda, Hironori Ito, Yusuke Shibata, Tomoya Ohira, Luno Yoshikawa, Youiti Ootuka, Satoshi Kashiwaya, Masumi Yamaguchi, Hiroyuki Tamura, Tatsushi Akazaki
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Journal Title
Appl. Phys. A
Volume: 121
Issue: 4
Pages: 1341-1345
DOI
NAID
Related Report
Peer Reviewed / Open Access
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