In order to reveal some of the continuous physical changes and life activities of the microscopic world, Russian researchers have recently developed a holographic digital camera capable of stereoscopically displaying the dynamics of the object under study with 20 trillion shots per second. Holography refers to a photographic technique that records the amplitude and phase of all light waves in transmitted and reflected light when a light wave transmits or reflects an object. After using information technology to encode useful optical wave information and image reconstruction from different perspectives, the three-dimensional image of the subject can be visualized when needed. Researchers at the National Institute for Information Technology, Mechanics and Optics in St. Petersburg, Russia, reported in the US “Applied Physics Newsletter†that the displacements of sparks and biological cells that are bursting when objects are burned are all only nanoseconds in duration. One hundredth of a second) phenomenon. Although this transient phenomenon can be observed by means of femtosecond (terribograms per second) laser pulse scanning, it is difficult to obtain a stereoscopic image showing its continuous change. To solve this problem, researchers at the university produced a holographic digital camera that scans 20 trillion times per second using femtosecond laser pulses. The laser light emitted by the device will be converted into three pulsed lasers through a beam splitter. Among them, the A-beam laser has the highest intensity and can heat and excite molecules of the object under investigation. The B-beam laser then penetrates the object under study from another direction. And scattering occurs at the atom of the substance, and this scattered light is called object light; the C-beam laser is used as a reference light to pass near the object to be studied. After that, the object light and the reference light are superimposed on the recording medium to generate interference fringe patterns. The Russian researchers processed and interpreted the image with the help of a computer. After comparing the path difference between the object light and the reference light reaching the recording medium, the amplitude and phase information of all the light waves contained in the object light was determined. According to these consecutive information obtained by UHF shooting, a three-dimensional stereoscopic image reflecting the continuous change of the object under study can be generated. Capt King, an engineer involved in the research, introduced that the research team used the laser pulses emitted by this digital camera to stimulate Mars when the object burned and successfully captured the holographic stereo images of the Martian burst path. The expert also believes that after adjusting the femtosecond laser's intensity and pulse duration, it is expected to use this camera to capture the dynamic changes of biological cells and viruses. In addition, this technology provides new insights into the electronic transitions associated with electronic energy changes.