2013 Fiscal Year Final Research Report
Generation of isolated attosecond pulses by a two-color laser field synthesis
| Project/Area Number |
23760057
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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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 |
TAKAHASHI Eiji 独立行政法人理化学研究所, 光量子工学研究領域, 専任研究員 (80360577)
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| Project Period (FY) |
2011 – 2012
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| Keywords | レーザー / 高次高調波発生 / アト秒パルス |
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| Research Abstract |
We propose and demonstrate a robust generation method of intense isolated attosecond pulses (IAP), which enable us to perform a nonlinear attosecond optics experiment. Our generation scheme is based on the two-color infrared laser field synthesis and the energy-scaling method of HHG. By using our robust generation method, the maximum pulse energy of the IAP reaches as high as 1.3 uJ. The generated pulse with a duration of 500 as, as characterized by a nonlinear autocorrelation measurement, is the shortest and highest-energy pulse ever with the ability to induce nonlinear phenomena. The peak power of our tabletop light source reaches 2.6GW, which even surpasses that of an extreme-ultraviolet free-electron laser.
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