Control of spin-orbit interaction of optical pulses in the mono-cycle regime and its application
| Project/Area Number |
23360024
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
MORITA Ryuji 北海道大学, 工学(系)研究科(研究院), 教授 (30222350)
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| Co-Investigator(Kenkyū-buntansha) |
TODA Yasunori 北海道大学, 大学院工学研究院, 教授 (00313106)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
Fiscal Year 2013: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2011: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
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| Keywords | 光量子科学 / 量子エレクトロニクス / 高性能レーザー / モノサイクル光パルス / スピン軌道相互作用 / 位相特異性 / 偏光特異性 / 軌道角運動量 / スピン角運動量 / レーザー加工 / 周波数分解計測 / 環状ビーム |
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| Research Abstract |
Few-cycle optical-vortex pulse generation and over-mJ intense, 27 fs optical-vortex pulse generation with programmable topological-charge control were first performed. Furthermore, the measurement of the orbital-angular-momentum spectra of ultra-broadband optical-vortex pulses with high precision was demonstrated in quasi-real time. The time-resolved nonlinear spectroscopy technique using optical vortices as a pump and a probe was developed, enabling us to evaluate the relaxation time of orbital angular momentum of the GaN exciton. In addition, chiral nanostructures of metal were first fabricated by using spin- and orbital-angular momentum controlled optical-vortex pulses.
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Report
(4 results)
Research Products
(119 results)
