[11p-C213-1~9] 3.5 Ultrashort-pulse and high-intensity lasers

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)English Presentation

[11p-C213-4] High-Power Multi-Plate Spectral Broadening of an Azimuthally Polarized Femtosecond Pulse

〇(D)Yunpeng Liu^1,2, Yu-Chieh Lin¹, Dianhong Dong¹, Yasuo Nabekawa¹, Eiji Takahashi^1,2 (1.RIKEN, 2.Saitama University)

Keywords:

Azimuthally polarized beam,Pulse compression

We demonstrate high-power multi-plate spectral broadening of an azimuthally polarized femtosecond beam. Using three fused-silica plates, supporting a Fourier-transform-limited pulse duration of 25.7 fs. The output maintained both a uniform ring-shaped profile and the azimuthal polarization structure, while delivering 8.15 W average power, corresponding to 0.815 mJ at 10 kHz. These results highlight azimuthally polarized beams as a promising platform for high-power structured-light post-compression.