Single-shot framing integration photography with high spatial resolution at 5.3*1012 frames per second by an inversed 4f system

TL;DR

This paper introduces a high-resolution ultrafast photography method called FIP, capable of capturing events at 5.3 trillion frames per second with excellent spatial detail, enabling detailed observation of ultrafast dynamics.

Contribution

The paper presents a novel framing integration ultrafast photography system using an inversed 4f setup, achieving unprecedented frame rates and spatial resolution in ultrafast imaging.

Findings

Achieved 5.3×10^12 fps framing rate

Spatial resolution of 110.4 lp/mm

Proven ability to capture unrepeatable ultrafast dynamics

Abstract

We present a framing integration ultrafast photography (FIP), which integrates the framing structure, codes a dynamic event by an inversed 4f system (I4F) and decodes regionally with high spatial resolution. In the experiment about laser-induced plasma, FIP achieved a framing rate of 5.3*1012 frames per second (fps) and an intrinsic spatial resolution of 110.4 lp/mm. It has an excellent spatio-temporal resolution and a compact and flexible structure. Hence, it can probe unrepeatable ultrafast intra- and inter-atomic/molecular dynamics, different in size and duration with high-quality. Besides, FIP can lay a foundation for integrating and simplifying ultrafast photography instruments. Here the minimum framing time (temporal resolution) is limited by only the laser pulse duration; be sure, attosecond laser technology may further increase framing rates by several orders of magnitude.