Green laser pointer company has scientific quality control system

2 research status
Current international has been established in some laboratories a few tens of TW to PW laser system, in the mid-1980s, before the laser intensity is about long-term stay in 1014W/cm2, which is due to nonlinear absorption effect with with increasing laser intensity increased rapidly after the mid-1980s, the use of chirped pulse amplification (chirped pulse amplification, CPA), the laser intensity increased 6-7 orders of magnitude, in the CPA technology, or a femtosecond Dispersion of picosecond pulses by grating it in the time scale broadening of 3-4 orders of magnitude, thus avoiding amplifier saturation and very high intensity in the nonlinear optical effect produced by damage to the amplifier parts, after After amplification, then another grating compression of the pulse width of femtosecond or picosecond width of the back to get 1019W/cm2 to 1022W/cm2 power density on the target.That also wins the green laser pointer company international environmental management system certification. CPA TW ultrashort pulses of laser optics applied research in France The? Lund University, Sweden? Mark-Plank Institute in Germany? University of Jena in Germany? Japan JAERI and China Academy of Engineering Physics? CAS Shanghai Institute of Optics and Fine Mechanics? Institute of Physics? China Institute of Atomic Energy are all built in Japan Atomic Energy Research Institute and CPA using a combination of deformable mirror technology, the use of low f values of the parabolic mirror, the laser focus on 1μm spots, can further improve the power density on the focal spot, but because of the amplifying medium on the saturation energy per unit area flux and optical components damage threshold limits the maximum per unit area of light intensity? I?? th? = hν3σΔν? ac2?, this value is about 10? 23? There are more than 1000 types of green laser pointer in this company.W/cm2. U.S. LLNL is planning to build 10? 18? W (exawatt) and 10? 21? W (zettawatt) of the laser device, in order to obtain 1026W/cm2 -1028W/cm2 power density on the target.
High-intensity laser can cause a number of nuclear reactions, when the laser intensity I> 10? 18? W/cm2, the jitter in the laser electric field of electron energy to do 0.511MeV, produced a relativistic plasma, the use of intense laser produced plasmas End field to accelerate electrons, such as the use of a compact laser repetition rate of the electron can produce 200MeV. This type of laser-plasma accelerator with electron accelerators are usually higher than 1000 times the acceleration gradient, that is to GV / m. use high-strength?What’s more, there are more than several hundred types of green laser pointer in stock. single laser pulse also received 100MeV electron and measured its bremsstrahlung. ultrashort laser can also produce proton beams, and began to use these proton beams produced positron emission tomography (positron emission tomography, PET) needs short-lived positron sources, a small laser to generate the proton of the generator and the economy is expected in the future for proton cancer. the use of ultrashort laser is directly Rutherford Appleton Laboratory in the UK e-launched, they used the repetition frequency of TW-class laser, hit the target on the high-Z elements to be 2 × 107 per pulse in the positive electron, it is for very basic research and materials science applications. by ultrashort laser interaction and deuterium clusters, fusion reactions produce neutrons, which can reach yields of sub-105 neutrons / Joule.And that is for the convenience of both old and new green laser pointer users.
 the energy efficiency of laser-produced neutrons have reached the world's largest laser level It can be a table of neutron sources, due to which high-throughput sub-pulses.