発表者名 |
村田 拡輝 |
指導教員名 |
芦原 聡 教授 |
発表題目(英語) |
Optical Amplification of High Repetition Rate Mid-IR Ultrafast Pulses for High Harmonic Generation in Solids |
要旨(英語) |
The evolution of high-power ultrafast lasers pioneered non-perturbative strong-field phenomenon. Recently, high harmonic generation (HHG), a representative strong-field phenomena, has been found to occur in solids as well as in gases. The solid-state HHG can be operated under the room condition, and is more flexible than gas-state HHG due to the choice of the material and the structure. Hence, the development of compact, easy-to-use XUV light sources is expected.
To generate higher harmonics without damaging a solid crystal, Mid-Infrared (MIR) pumps are more suitable than visible light pumps. However, the conventional method to obtain high power MIR pulses such as Ti:Sapphire-based system suffers low repetition rate because of parametric conversion.
The purpose of this study is to obtain sufficient pulse energy of high-repetition-rate MIR pulses for HHG in solids by the amplification of the output pulses from the MIR laser oscillator. In this presentation, the design of the amplifier and the result so far will be reported. |
発表言語 |
日本語 |