Generation of intense topological light waves in the mono-cycle regime by coherent beam combining and their application
| Project/Area Number |
26286056
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Optical engineering, Photon science
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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) |
戸田 泰則 北海道大学, 工学(系)研究科(研究院), 教授 (00313106)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2014: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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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 / コヒーレントビーム結合 / 位相特異性 / 偏光特異性 / トポロジカル光波 / 光渦 / 軸対称偏光 / 軌道角運動量 |
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| Outline of Final Research Achievements |
Over 1 mJ pulse intense optical vortex pulses (duration of 27 fs) were generated with programmable topological-charge control. Ultra-broadband polarization vortex pulses (wavelength range of 750 to 880 nm) were successfully synthesized from two orthogonally polarized optical vortex pulses by using coherent beam combining. Moreover, the extended Stokes parameters were newly introduced, enabling one to precisely evaluate polarization symmetry and spatial polarization purity for ultra-broadband polarization vortex pulses. Furthermore, snap-shot polarization spectroscopy through four-wave mixing signals from GaN by use of radially polarized ultrashort pulses was performed, giving high sensitivity and high precision.
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Report
(4 results)
Research Products
(87 results)
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[Presentation] 軸対称偏光ビームの空間位相解析2015
Author(s)
山根啓作, 横瀬尚也, 鈴木雅人, 戸田泰則, 森田隆二
Organizer
第62回応用物理学会春季学術講演会
Place of Presentation
東海大学湘南キャンパス（神奈川県平塚市）
Year and Date
2015-03-12
Related Report
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[Presentation] 光渦が創るシリコン螺旋円錐体2014
Author(s)
高橋冬都, 滝澤隼, 藤原穂波, 宮本克彦, 森田隆二, 尾松孝茂
Organizer
日本光学会年次学術講演会 Optics & Photonics Japan 2014
Place of Presentation
筑波大学東京キャンパス（東京都文京区）
Year and Date
2014-11-05
Related Report
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