One, the length of time is different, picoseconds relative to ultra-picoseconds longer. Picosecond is actually a time concept, 1 picosecond = 10-12 seconds. Picosecond in the field of medical aesthetics refers to the honeycomb picosecond laser, which sends out pulses that act on the skin to stay 7 times shorter than the general Q laser, the treatment head is a honeycomb shape.
Second, the scope of application is different, ultra-picosecond is used in a wider range. The main selling point of picosecond technology is that the pulse width is shorter, that is, the time acting on the skin is shorter, the shorter the time, the better the efficacy, and the smaller the side effects.
In this regard, the pulse width of the Ultra Picosecond is shorter than that of the Cellular Picosecond, and is about half that of the Cellular Picosecond. While the Cellular Picosecond has only one wavelength, the Ultra Picosecond has three wavelengths, allowing for a wider range of treatments and more effective solutions to more skin problems.
Expanded Information:
High-precision time transfer is the core technology for navigation, localization and other applications in daily life. However, the current widely used time transfer technology faces the potential risk of various attacks such as data tampering and signal spoofing. Pan's team proposed for the first time a quantum-secure time synchronization scheme based on bidirectional free-space quantum key distribution technology.
Based on the "Mozi" quantum science experiment satellite, Pan's team made a breakthrough in key technologies such as single-photon time transfer between the star and the ground, and obtained 30 picoseconds (1 picosecond is equal to one trillionth of a second) precision time transfer between the star and the ground, and the precision reached the international advanced level of star-ground laser time transfer.
Baidu Encyclopedia - Picosecond
People's Daily Online - My Scientists Realize Quantum-Safe Time Transfer