Researchers use spectral volume compression ultra-high-speed photographic equipment to capture 5D information.

Researchers use information-rich optical imaging technology to provide multi-dimensional information, which enables people to observe and analyze the detected targets by using spectrum-volume compression ultrafast photography technology. This special photography method can capture 5D information in snapshots at the same time.

This technology can capture highly dynamic scenes on picosecond and femtosecond time scales. Researchers point out that ultrafast multidimensional optical imaging can be applied to the detection of extremely fast phenomena in physics, chemistry and biology. Compressed ultrafast photography is a research topic, because it has the characteristics of high time resolution, high data throughput and single shooting.

This technology has been used to study various ultrafast phenomena, including capturing ultrafast photons, observing optical Mach cones, and detecting optical chaotic dynamics. In many applications to study ultrafast phenomena, the spatial volume distribution and spectral composition of dynamic scenes are very important for observing the dynamic process and exploring its potential mechanism. Recently, researchers demonstrated a spectral volume cup system, which can capture 5D information in snapshot measurement.

The system combines time-of-flight CUP and hyperspectral CUP, the former extracts spatial three-dimensional information, and the latter records spatial-time-spectral four-dimensional information. The complete 5D information can be retrieved by coupling the time-of-flight UnionPay and hyperspectral UnionPay data according to the timestamp relationship.

The system provides special resolutions of 0.39, 0.35 and 3 mm in X, Y and Z directions. The system can also reliably distinguish various three-dimensional objects, and demonstrate with a three-dimensional human model coated with quantum dots. The visual field is 8.8 mm 6.3 mm 15 mm, which can be adjusted by changing the tubular lens according to the scene. Researchers say that SV-CUP, which combines computational imaging, compressive sensing and image processing, provides a new method to improve the dimension of ultrafast optical imaging.