| Project/Area Number |
23246019
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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 |
Applied optics/Quantum optical engineering
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
MIDORIKAWA Katsumi 独立行政法人理化学研究所, 緑川レーザー物理工学研究室, 主任研究員 (40166070)
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| Co-Investigator(Renkei-kenkyūsha) |
NABEKAWA Yasuo 独立行政法人理化学研究所, 緑川レーザー物理工学研究室, 専任研究員 (90344051)
TAKAHASI Eiji 独立行政法人理化学研究所, 緑川レーザー物理工学研究室, 専任研究員 (80360577)
LSHIKAWA Kennichi 東京大学, 工学研究科研究院, 准教授 (70344025)
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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 |
¥47,320,000 (Direct Cost: ¥36,400,000、Indirect Cost: ¥10,920,000)
Fiscal Year 2013: ¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2012: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Fiscal Year 2011: ¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
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| Keywords | 量子エレクトロニクス / 非線形光学 / アト秒パルス / 高次高調波 / 高強度レーザー物理 / 極端紫外光 |
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| Research Abstract |
We have generated high energy isolated attosecond pulses, which are intense enough to induce the nonlinear phenomena in atoms and molecules. The pulse width was direct characterized by autocorrelation measurement based on two-photon double ionization in nitrogen molecules. By carefully designing the generation configurations, we obtained isolated attosecond pulses with energy up to 1.3 micro Joule/pulse, thus showing its energy enhancement from 100- to 1000-fold compared with the previous report so far. From a 500-as pulse duration determined by the autocorrelation method, the peak power of this isolated attosecond pulse was evaluated to be 2.6 GW. The presented method paves the way for the intense attosecond science frontier, which will certainly bring a great leap forward in research on ultrafast phenomena and nonlinear optics.
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