Junichi Nishitani
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Junichi Nishitani has a total of 2 co-authors. Here are the top co-authors by number of shared publications:
Masanori Hangyo
Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
2 shared publications- Takeshi Nagashima
Faculty of Science and Engineering, Setsunan University, 17-8 Ikeda-Nakamachi, Neyagawa, Osaka 572-8508, Japan
2 shared publications
Latest Publications
- 19 August 2013
- Published by AIP Publishing in Applied Physics Letters
- Vol. 103 (8) , 081907
Terahertz radiation from antiferromagnetic MnO excited by optical laser pulses
Terahertz (THz) radiation from antiferromagnetic (AFM) MnO excited by femtosecond laser pulses has been investigated. The radiated THz pulse consists of a single-cycle broadband pulse and an oscillating component with a frequency of 0.83 THz at 10 K. The oscillations are magnetic dipole radiation from optically excited AFM magnons. We found that the peak amplitude of the broadband pulse from MnO increases as the temperature decreases and is significantly enhanced below AFM order temperature. The origin of the broadband pulse radiation observed below AFM order temperature can be attributed to second-order nonlinear optical effects depending on the AFM order.
- 19 August 2013
- Published by AIP Publishing in Applied Physics Letters
- Vol. 103 (8) , 081907
Terahertz radiation from antiferromagnetic MnO excited by optical laser pulses
Terahertz (THz) radiation from antiferromagnetic (AFM) MnO excited by femtosecond laser pulses has been investigated. The radiated THz pulse consists of a single-cycle broadband pulse and an oscillating component with a frequency of 0.83 THz at 10 K. The oscillations are magnetic dipole radiation from optically excited AFM magnons. We found that the peak amplitude of the broadband pulse from MnO increases as the temperature decreases and is significantly enhanced below AFM order temperature. The origin of the broadband pulse radiation observed below AFM order temperature can be attributed to second-order nonlinear optical effects depending on the AFM order.
- 30 May 2012
- Published by American Physical Society (APS) in Physical Review B
- Vol. 85 (17)
Coherent control of terahertz radiation from antiferromagnetic magnons in NiO excited by optical laser pulses
We investigated terahertz (THz) radiation from twinned NiO(110) single crystals excited by optical laser pulses with various polarization states. We found that the polarity of THz radiation from optically excited coherent antiferromagnetic (AFM) magnons can be controlled by switching the helicity of circular polarization and by rotating the direction of linear polarization of the laser pulses. The dependence of THz radiation on the polarization of the laser pulses suggests that AFM magnons are excited by the inverse Faraday effect in a twinned crystal with linear magnetic birefringence.
- 30 May 2012
- Published by American Physical Society (APS) in Physical Review B
- Vol. 85 (17)
Coherent control of terahertz radiation from antiferromagnetic magnons in NiO excited by optical laser pulses
We investigated terahertz (THz) radiation from twinned NiO(110) single crystals excited by optical laser pulses with various polarization states. We found that the polarity of THz radiation from optically excited coherent antiferromagnetic (AFM) magnons can be controlled by switching the helicity of circular polarization and by rotating the direction of linear polarization of the laser pulses. The dependence of THz radiation on the polarization of the laser pulses suggests that AFM magnons are excited by the inverse Faraday effect in a twinned crystal with linear magnetic birefringence.