The 70th JSAP Spring Meeting 2023

Presentation information

Oral presentation

3 Optics and Photonics » 3.2 Information photonics and image engineering (formerly 3.3)

[15a-A202-1~8] 3.2 Information photonics and image engineering (formerly 3.3)

Wed. Mar 15, 2023 9:00 AM - 11:00 AM A202 (Building No. 6)

Ryuichi Katayama(Fukuoka Inst. of Tech.)

9:00 AM - 9:15 AM

[15a-A202-1] Computational research on diffraction imaging using attosecond sources

〇(P)Giang Nhan Tran1, Katsumi Midorikawa1, Eiji J. Takahashi1 (1.RIKEN)

Keywords:Diffraction imaging, Computational imaging, Attosecond pulses

The development of attosecond sources based on high harmonic generation (HHG) opens the opportunities to capture the ultrafast phenomena in matter. In addition, the table-top scale of attosecond sources allows to perform the experiments such as coherent diffraction imaging (CDI), which are only undertaken at large scale facilities. However, the low power and broad continuum spectrum attosecond sources prevent the applicability of CDI technique in the laboratory scale.
In this work, we show the possibility of obtaining high resolution images using the combination of CDI and attosecond sources. Making use of the high power attosecond sources generated from high intensity synthesized laser and new developed algorithms, we demonstrate the potential to overcome the limitation of broad bandwidth to obtain high resolution images. In addition, the complex information of sample recovered from the broadband diffraction intensity demonstrates the potential to apply the attosecond sources for exploring the inner structure of samples.