Terahertz radiation from antiferromagnetic MnO

被引：0
|
作者：
Nishitani, Junichi [1 ]
Nagashima, Takeshi [1 ]
Hangyo, Masanori [1 ]
机构：
[1] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan
来源：
2011 36TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2011年
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have observed terahertz radiation from antiferromagnetic MnO excited by femtosecond laser pulses. The oscillations following the main pulse are radiation from optically excited antiferromagnetic magnons. The origin of the main pulse radiation can be attributed to second-order nonlinear optical effects in bulk and/or at surface with antiferromagnetic spin order.
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