Open AccessSequentially timed all-optical mapping photography boosted by a branched 4f system with a slicing mirror
Author(s) -
Takao Saiki,
Takuya Hosobata,
Yukihiro Kono,
Masahiro Takeda,
Ayumu Ishijima,
Miu Tamamitsu,
Yoichi Kitagawa,
Keisuke Goda,
Shinya Morita,
Shinobu Ozaki,
Kentaro Motohara,
Yutaka Yamagata,
Keiichi Nakagawa,
Ichiro Sakuma
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.400679
Subject(s) - slicing , optics , frame rate , laser , plane mirror , computer science , photography , image resolution , ultrashort pulse , physics , materials science , computer graphics (images) , art , visual arts
We present sequentially timed all-optical mapping photography (STAMP) with a slicing mirror in a branched 4f system for an increased number of frames without sacrificing pixel resolution. The branched 4f system spectrally separates the laser light path into multiple paths by the slicing mirror placed in the Fourier plane. Fabricated by an ultra-precision end milling process, the slicing mirror has 18 mirror facets of differing mirror angles. We used the boosted STAMP to observe dynamics of laser ablation with two image sensors which captured 18 subsequent frames at a frame rate of 126 billion frames per second, demonstrating this technique's potential for imaging unexplored ultrafast non-repetitive phenomena.