2023年第70回応用物理学会春季学術講演会

講演情報

一般セッション(口頭講演)

3 光・フォトニクス » 3.2 情報フォトニクス・画像工学(旧3.3)

[15a-A202-1~8] 3.2 情報フォトニクス・画像工学(旧3.3)

2023年3月15日(水) 09:00 〜 11:00 A202 (6号館)

片山 龍一(福岡工大)

09:00 〜 09:15

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

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

キーワード: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.