Open AccessSequentially timed all-optical mapping photography (STAMP) utilizing spectral filtering
Author(s) -
Takakazu Suzuki,
Fumihiro Isa,
Leo Fujii,
Kenichi Hirosawa,
Keiichi Nakagawa,
Keisuke Goda,
Ichiro Sakuma,
Fumihiko Kannari
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.030512
Subject(s) - optics , ultrashort pulse , laser , photography , free spectral range , fourier transform , optical filter , wavelength , filter (signal processing) , materials science , physics , computer science , art , quantum mechanics , visual arts , computer vision
We propose and experimentally demonstrate a new method called SF-STAMP for sequentially timed all-optical mapping photography (STAMP) that utilizes spectral filtering. SF-STAMP is composed of a diffractive optical element (DOE), a band-pass filter, and two Fourier transform lenses. Using a linearly frequency-chirped pulse and converting the wavelength to the time axis, we realize single-shot ultrafast burst imaging. As an experimental demonstration of SF-STAMP, we monitor the dynamics of a laser ablation using a linearly frequency-chirped broadband pulse (>100 nm) that is temporally stretched up to ~40 ps. This imaging method is expected to be effective for investigating ultrafast dynamics in a diverse range of fields, such as photochemistry, plasma physics, and fluidics.