Ultrafast Coherent Control of Spin Precession Motion by Terahertz Magnetic Pulses
Ultrafast Coherent Control of Spin Precession Motion by Terahertz Magnetic Pulses
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DOI：
10.12693/aphyspola.121.343
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发表时间：
2012-02
影响因子：
0.7
通讯作者：
M. Nakajima;K. Yamaguchi;T. Suemoto
中科院分区：
文献类型：
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作者：
M. Nakajima;K. Yamaguchi;T. Suemoto
我们证明了由于超短太赫兹脉冲的磁场分量引起的铁磁共振而对自旋进动运动进行相干控制。进动的幅度可以通过双脉冲激励技术的脉冲间隔时间来控制。我们成功地观测到了自旋和光子系统之间的能量传递，当进动幅度被抵消时，自旋系统的能量瞬间返回到第二太赫兹脉冲。
We demonstrated coherent control of spin precession motion due to the ferromagnetic resonance induced by magnetic field component of ultrashort terahertz pulses. The amplitude of the precession can be controlled by the pulse separation time of the double pulse excitation technique. We succeeded in observing the energy transfer between spin and photon systems, and the energy of the spin system is returned to the second terahertz pulses instantaneously when the precession amplitude is cancelled.