2020
DOI: 10.1364/oe.383038
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Single-shot imaging of microscopic dynamic scenes at 5 THz frame rates by time and spatial frequency multiplexing

Abstract: Femtosecond-scale ultrafast imaging is an essential tool for visualizing ultrafast dynamics in molecular biology, physical chemistry, atomic physics, and fluid dynamics. Pump-probe imaging and a streak camera are the most widely used techniques, but they are either demanding the repetitions of the same scene or sacrificing the number of imaging dimensions. Many interesting single-shot ultrafast imaging techniques have been developed in recent years for recording non-repetitive dynamic scenes. Nevertheless, the… Show more

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Cited by 29 publications
(6 citation statements)
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“…Photonics 2024, 11, 24 2 of 9 angle [27][28][29], wavelength [30][31][32][33][34][35][36][37][38][39], spatial frequency [40][41][42], and polarization [43]. Despite significant advances in ultrafast photography, a comprehensive theoretical study of the amount of spatio-temporal information of these systems is still lacking.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Photonics 2024, 11, 24 2 of 9 angle [27][28][29], wavelength [30][31][32][33][34][35][36][37][38][39], spatial frequency [40][41][42], and polarization [43]. Despite significant advances in ultrafast photography, a comprehensive theoretical study of the amount of spatio-temporal information of these systems is still lacking.…”
Section: Introductionmentioning
confidence: 99%
“…detection and active detection-based photography [20,21], which leverage spatial m plexing encoding [22] and division techniques such as space and are based on space sion [23][24][25][26], angle [27][28][29], wavelength [30][31][32][33][34][35][36][37][38][39], spatial frequency [40][41][42], and pola tion [43]. Despite significant advances in ultrafast photography, a comprehensive the ical study of the amount of spatio-temporal information of these systems is still lac As a result, obtaining an optimized system with a large amount of spatio-temporal i mation remains a challenge.…”
Section: Introductionmentioning
confidence: 99%
“…However, increasing its frame number also degrades the temporal resolution due to the spectral shaping. The time and spatial-frequency multiplexing imaging 29 can take 14 snapshots with a frame rate of 5 Tfps and a 150 fs temporal resolution by the interference of reference pulses that have various propagation angles and time delays. However, the coaxial probe pulses and the off-axis reference pulses make it difficult to accurately synchronize the alignment between the probe and the reference pulses, along with the increase of the frame number.…”
Section: Introductionmentioning
confidence: 99%
“…然 而, ICCD的时间分辨率只有2 ns, 条纹相机只能 记录一维空间信息, 发射光谱法和汤姆孙散射法都 不具空间分辨能力; 激光探针法具有结构简单、测 量精度高的优点, 是这些方法中应用最为广泛的, 但是传统的激光探针法需要多次重复LIP的物理 过程才能捕捉其全面时空特性. 很多全光学链路的 时空分辨光学探针被提出用于取代传统的激光探 针法, 这些光学探针可以分为: 时间波长编码的光 学探针 [12,13] 、时间空间编码的光学探针 [14] 、时间角 度编码的光学探针 [15,16] 、时间空间频率编码的光学 探针 [17,18] 、时间偏振编码的光学探针 [19,20]…”
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