2015 Fiscal Year Final Research Report
Spin wave excitation by ultrafast magnetic field pulse for magnonics
| Project/Area Number |
25390057
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied materials
|
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| Research Institution | Setsunan University (2014-2015)
Osaka University (2013) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | テラヘルツ分光 / スピン波 / 光パルス / 反強磁性体 |
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| Outline of Final Research Achievements |
An novel scheme for spin wave excitations using near magnetic field pulses induced by optical pulse illumination was proposed and invesigated.
Terahertz radiation spectroscopy and optical pump - terahertz magneto-optical effect probe system were developed to study the mechanism of the optically excited spin waves. The excitation of the spin waves in YIG by the magetic field pulses generated by optically excited TGG was examined.
During the course of this research, characteristic terahertz pulse radaition from TGG excited by the optical pulses was found. To calrify the origin of the radiation from TGG, the transmission of terahretz waves through TGG was investigated.
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| Free Research Field |
テラヘルツ波工学
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