Sequentially timed all-optical mapping photography (STAMP) utilizing spectral filtering

Suzuki, Takakazu; Isa, Fumihiro; Fujii, Leo; Hirosawa, Kenichi; Nakagawa, Keiichi; Goda, Keisuke; Sakuma, Ichiro; Kannari, Fumihiko

doi:10.1364/oe.23.030512

Cited by 76 publications

(38 citation statements)

References 33 publications

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“…On the downside, the final detection method is limited by the number of pixels on the CCD and thus limits the video to a total of just 5-7 frames. Further developments of STAMP have been applied to imaging of ultrafast (and non repetitive) processes such as laser ablation [30] along with evolutions of the same concept, delivering picosecond temporal resolution across several frames [31].…”

Section: Ultrafast Time-stretch Photography Techniquesmentioning

confidence: 99%

A trillion frames per second: the techniques and applications of light-in-flight photography

Faccio

Velten

2018

Rep. Prog. Phys.

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Cameras capable of capturing videos at a trillion frames per second allow to freeze light in motion, a very counterintuitive capability when related to our everyday experience in which light appears to travel instantaneously. By combining this capability with computational imaging techniques, new imaging opportunities emerge such as 3D imaging of scenes that are hidden behind a corner, the study of relativistic distortion effects, imaging through diffusive media and imaging of ultrafast optical processes such as laser ablation, supercontinuum and plasma generation. We provide an overview of the main techniques that have been developed for ultra-high speed photography with a particular focus on 'light-in-flight' imaging, i.e. applications where the key element is the imaging of light itself at frame rates that allow to freeze its motion and therefore extract information that would otherwise be blurred out and lost.

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Section: Ultrafast Time-stretch Photography Techniquesmentioning

confidence: 99%

A trillion frames per second: the techniques and applications of light-in-flight photography

Faccio

Velten

2018

Rep. Prog. Phys.

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“…For observing a detailed process in filamentation induced by intense femtosecond laser, the number of frame was also increased. Here, we present movies of plasma filament generated inside a glass acquired by an improved STAMP system, called SF-STAMP (STAMP utilizing spectral filtering) [20][21][22]. Figure 15 shows the schematic of experimental setup.…”

Section: Real-time Monitoring Of Plasma Filament Generated By Femtosementioning

confidence: 99%

Sequentially Timed All-Optical Mapping Photography for Real- Time Monitoring of Laser Ablation: Breakdown and Filamentation in Picosecond and Femtosecond Regimes

Nakagawa¹,

Suzuki²,

Kannari³

2017

Laser Ablation - From Fundamentals to Applications

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To investigate ultrafast phenomena, a novel, ultrafast imaging technique was developed. Sequentially timed all-optical mapping photography (STAMP) performs single-shot image acquisition without the need for repetitive measurements and without sacrificing high-temporal resolution and image quality. The principle of this imaging method is based on the all-optical approach, and therefore it overcomes the temporal resolution in conventional high-speed cameras. Also, STAMP's single-shot movie-shooting capability allows us to obtain sequential images of non-repetitive ultrafast dynamic phenomena. Here, we present the motion pictures of early stage dynamics during femtosecond laser ablation captured by two types of STAMP setup. Breakdown was induced by intense femtosecond laser pulse and monitored with a frame interval of 15.3 ps and a total of six frames. The movie clearly shows the plasma generation and expansion on glass surface. Also, filamentation was generated inside a glass and observed with a frame interval of 230 fs and total of 25 frames. These phenomena have previously only been observed by pump-probe imaging. STAMP is a powerful tool to understand precise processes of complex dynamics in ultrashort laser ablation.

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“…The successive images are sampled by a series of discrete daughter pulses with different spectral bands generated from a single broadband pulse, so some constraints exist among the temporal resolution, frame interval, and frame number. 4,[22][23][24] By utilizing spectral filtering in STAMP, i.e., SF-STAMP, 24 the frame rate increases further to 7.5 Tfps with a frame number of 25, which also results in a sacrifice of the temporal resolution, at 465 fs. In this case, the highest effective frame rate is ∼2 Tfps.…”

Section: Introductionmentioning

confidence: 99%

High-spatial-resolution ultrafast framing imaging at 15 trillion frames per second by optical parametric amplification

et al. 2020

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We report a framing imaging based on noncollinear optical parametric amplification (NCOPA), named FINCOPA, which applies NCOPA for the first time to single-shot ultrafast optical imaging. In an experiment targeting a laser-induced air plasma grating, FINCOPA achieved 50 fs-resolved optical imaging with a spatial resolution of ∼83 lp∕mm and an effective frame rate of 10 trillion frames per second (Tfps). It has also successfully visualized an ultrafast rotating optical field with an effective frame rate of 15 Tfps. FINCOPA has simultaneously a femtosecond-level temporal resolution and frame interval and a micrometer-level spatial resolution. Combining outstanding spatial and temporal resolutions with an ultrahigh frame rate, FINCOPA will contribute to high-spatiotemporal resolution observations of ultrafast transient events, such as atomic or molecular dynamics in photonic materials, plasma physics, and laser inertial-confinement fusion.

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Sequentially timed all-optical mapping photography (STAMP) utilizing spectral filtering

Cited by 76 publications

References 33 publications

A trillion frames per second: the techniques and applications of light-in-flight photography

A trillion frames per second: the techniques and applications of light-in-flight photography

Sequentially Timed All-Optical Mapping Photography for Real- Time Monitoring of Laser Ablation: Breakdown and Filamentation in Picosecond and Femtosecond Regimes

High-spatial-resolution ultrafast framing imaging at 15 trillion frames per second by optical parametric amplification

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