The member of laser pointer website can get a member price

The member of laser pointer website can get a member price.
With laser technology of Q-1968, the time resolution has been increased to nanosecond order of magnitude; In addition to the absorption spectra can also study of its fluorescence spectrum. Clamping technology development in recent years, the time resolution has been further improved and reached picosecond and sub-picosecond. Therefore, this laser flash spectroscopy, often referred to picosecond spectroscopy or sub-picosecond spectroscopy. Of course, the experimental study of the fast process, in addition to the laser light source of ultrashort pulse (10-12-10-13 seconds), but also must have the appropriate testing techniques. The member card of laser pointer website can be used by others.
At present, the experimental study of the fast process, usually to take such a test, the laser pulse with a beam splitter is decomposed into two beams of light, which a bunch of strong pulse to motivate the study material fast, while with the other beam weak pulse to probe the response under intense pulsed excitation. Figure (10-16) used to measure organic molecules or bio-molecule fluorescence spectroscopy and lifetime of the experimental apparatus. Issued by the mode-locked neodymium glass laser picosecond pulse laser light is divided into two by a beam splitter. All the way through the ADP crystal multiplier lens launched into the sample chamber so that the sample molecules to be inspired. The other way first through the lens make a spark in the pool, resulting in the continuous spectrum. Spark caused by the continuous spectrum of light output after a light ladder, the light is divided into several intervals of the picosecond and a number of beam. The customer can buy the laser pointer at a lower price with the member card of laser pointer website.
Thus, when the sample multiplier beam excitation, the spectrometer can be recorded to determine the fluorescence lifetime of the sample in the sample fluorescence signal in the different delay conditions. Due to the use of clamping technology, can be obtained picosecond and sub-picosecond ultrashort pulse (close to the time scale of molecular movement limit -10-15 sec), which for precision spectroscopic methods of physics, chemistry and biology, unable to distinguish between fast and ultra-fast process offers the possibility.