2011 Fiscal Year Final Research Report
Ultrafast manipulation of spins using the light-shift effect
| Project/Area Number |
22654035
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | Kobe University |
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Principal Investigator |
KOHMOTO Toshiro 神戸大学, 大学院・理学研究科, 准教授 (70192573)
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| Research Collaborator |
MORIYASU Takeshi 神戸大学, 理学研究科, 学術研究員
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| Project Period (FY) |
2010 – 2011
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| Keywords | スピン制御 / レーザー |
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| Research Abstract |
We developed an all-optical ultrafast magnetic-resonance method with using femtosecond optical pulses but without using microwave. We observed optically induced spin precession and spin echoes and demonstrated the optical manipulation of spin coherence in rare-earth ions in crystals. We also generated the fictitious magnetic field using the light-shift effect and demonstrated the phase control of spin precession and the pure spin rotation about an arbitrary axis.
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