How to comprar laser pointer potente?

Laser intensity is the comprehensive subjective perception or description of laser wavelength and laser power by the human eye. There is a wavelength meter to measure the laser wavelength, and a power meter to measure the laser power. There are objective standards for measuring these two physical quantities, and they are calibrated general-purpose instruments and equipment. The measurement of laser brightness can only be seen with your own eyes, because it is not bright or not, and the brightness can only be concluded after seeing it with your own eyes. That is to say, your eyes are a test instrument for the amount of "laser brightness". In a strong laser field, some interesting phenomena caused by the ionization of atoms and molecules, such as high-order harmonics, strong field photoelectric holography, etc., also introduces some important models and calculation methods, such as the classic three-step model, the strong field approximation model , 3D TDSE calculation method and so on. However, it is worth mentioning that, whether in our theoretical calculations or experiments, it is very important to accurately calibrate the laser intensity. It is directly related to whether our interpretation of these interesting strong field phenomena is accurate, and also related to the further application of these attosecond phenomena. Laser pointer intensity measurement methods are temporarily divided into two categories, one is traditional measurement methods, and the other is measurement methods that rely on strong field ionization (related to our direction).