Observation of Third Harmonic Generation in Two-Dimensional MoS2 Semiconductor Using Terahertz Free-Electron Laser
- Resource Type
- Conference
- Authors
- Wang, Youwei; Ota, Masato; Agulto, Verdad C.; Mag-Usara, Valynn Katrine; Nishitani, Mikihiko; Isoyama, Goro; Asakawa, Makoto; Nakajima, Makoto
- Source
- 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Infrared, Millimeter and Terahertz Waves (IRMMW-THz),2022 47th International Conference on. :1-2 Aug, 2022
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Semiconductor lasers
Free electron lasers
Frequency conversion
Laser excitation
Pulsed laser deposition
Sulfur
Molybdenum
- Language
- ISSN
- 2162-2035
This study presents the third harmonic generation (THG) in two-dimensional MoS 2 deposited on Si/SiO 2 substrate. Intense terahertz pulses from a free-electron laser were used as pump. The pump central frequency is 3.5 THz, and the THG peak is observed around 10 THz. The THG intensity dependence on excitation density follows the $I_{3 \omega} \propto I_{\omega}^{3}$ relation which further confirms the THG.