green laser pointer is of the mini size

Ground state for the laser level. As the ground state as to preclude state or weakly bound state is unstable, it is their potential energy curves along the C internuclear distance R to the fast increase of the direction, and finally dissociate into individual atoms, ground state molecules will disappear. Ground state molecules very short-lived, as the order of 10-13s. Excited state for the bound state, its 10-8s level lifetime is orders of magnitude, than the ground state stable, and therefore at the nuclear distance R0 is easy to form B, C distribution among the population inversion. Excimer from the excited state to ground state transition from the bound state can be said to a free state (weakly bound state or rejection state) transition. We will try our best to provide the more competitive price for green laser pointer .
This transition, due to lower level approximation is empty, so there is full and the termination of low-level inversion problem. Excimer transition that is not "self-termination"-type transition. As long as there is - given the number of excimer exists, reversal there, it is easy to accumulate a considerable number of particles, and may get larger and larger inversion gain. As the ground state lifetime is very short, even ultrashort pulse case, the ground state can be considered to be empty, so giant pulse excimer system is particularly beneficial for the produce. As the laser level is the ground state, basically no radiation loss. Therefore, a high quantum efficiency, it is possible to achieve high efficiency of excimer lasers the main reason. The customer has noticed the advantage of green laser pointer price of this green laser pointer company.
As the ion laser level rapidly dissociate, thus lengthening the pulse width and high repetition rate work without difficulty. As the excimer fluorescence spectra of a continuous band, it can be made frequency tunable devices. On the laser level lifetime is very short, in order to achieve population inversion, requiring the pump pulse rise time is short. Therefore, work on short wave ultraviolet excimer laser system to achieve an effective pump, requires not only a large pump power, and require a fast rise time. In order to meet the requirements of the pump source, people take a lot of pumping methods, commonly used in the following two: The electron gun produces high-energy, fast rise time of the electron beam pulse, the electron beam fired at the excimer region of the active medium for excitation. Electron-beam-pumped can be divided into three types: horizontal pump, the electron beam to the laser optical axis perpendicular to the direction. The worker is showing the assembly process of green laser pointer .
In this way, simple structure, small size, the drawback is the use of low energy electron beam. Pumped, the electron beam direction parallel to the laser optical axis. Pumped energy efficiency improvement, but the need to increase the use of electron beam bunching oriented large magnetic field. Coaxial electron beam pump, composed of the electron gun cathode and anode made of two different diameters of the cylinder, the cathode outer tube inner tube evenly across the anode and the anode electronic book launch foil (foil made of aluminum foil or barium) to central axis of convergence. Anode cylinder filled with active medium, the optical axis and the anode tube, cathode tube coaxial. This approach can effectively use the electron beam energy. Electron beam generated by the pump has the advantage of fast rise time of the pump pulse, single pulse energy, a large area can be pumped. The worker is carefully studying the working instruction of green laser pointer .
Drawback is to require a large electron beam source, complex, high cost, manufacturing difficulties. Especially as the anode foil, it absorbs heat energy and the electron beam is often breakdown, resulting in a vacuum chamber leak, so the negative high repetition rate work. Fast way to use more so-called discharge-pumped Bruce Mulai (Blumlein) circuit. It has small size, simple structure, high-repetition-rate work can be, etc., are widely used. In order to improve the stability of the discharge, the electron beam can be used to control the discharge pump system. Stimulate the activation of particles depends mainly on the fast discharge, electron beam controlled discharge only, so that the discharge uniform and reliable. This circuit of the electron beam with low power requirements, can reduce the volume. But compared with other methods of rapid discharge of such pump approach is that the structure is complicated and costly. In order to achieve greater uniformity of the discharge volume, but also with pre-ionization technique. The worker should work in three shifts to accomplish all the orders of green laser pointer .