3 papers
physics.optics2026
Broadband gain characterization of Co:MgF for mid-infrared femtosecond pulse amplification
Natsuki Kanda, Kaito Nishimiya, Eiji J. Takahashi
The broadband gain characteristics of Co:MgF were investigated to assess its potential as a gain medium for ultrashort-pulse amplification around the 2 m spectral region. Si…
physics.optics2025
Towards intense single-digit attosecond pulses with a 100-mJ-class mid-infrared sub-cycle laser
Kaito Nishimiya, Rambabu Rajpoot, Eiji J Takahashi
The duration of isolated attosecond pulses created via high-order harmonic generation is determined by the number of optical cycles in the driving laser. Achieving shorter attoseco…
physics.optics2025
Advances in dual-chirped optical parametric amplification
Kaito Nishimiya, Eiji J. Takahashi
High-energy infrared lasers have enabled the generation of strong field phenomena, and among such phenomena, high-order harmonic generation (HHG) from gases has enabled attosecond-…