2010 - 2011 Effects of resonant coupling on terahertz-range coherent phenomena in semiconductor superlattices
2009 - 2009 超格子ミニバンド構造における光励起キャリアの充填機構
Papers (34):
Takayuki Hasegawa. Quantum beat of heavy-hole and light-hole excitons originating from interband Stark-ladder transitions in a biased GaAs/AlAs superlattice. Applied Physics Express. 2023. 16. 2. 021007-1-021007-4
Takayuki Hasegawa, Osamu Kojima. Control of electric field screening effects induced by photogenerated carriers for studies on ultrafast transient phenomena. Journal of the Japan Society of Infraed Science and Technology. 2023. 32. 2. 52-57
Takayuki Hasegawa, Masaya Marui, Yoshihito Tanaka. Electric field dependence of terahertz wave emission in temperature-controlled GaAs epitaxial films. Applied Physics Express. 2022. 15. 5. 051001-051001
Takayuki Hasegawa, Yuta Okushima, Yoshihito Tanaka. Characteristics of terahertz wave emissions under the coexistence of different sub-picosecond transient phenomena in GaAs epitaxial films. Applied Physics Express. 2021. 14. 041005