The wavelength of laser pointer can be considered

The wavelength of  laser pointer  can be considered.
Estimated that the relative saturation of the situation 10 years later. Section II: Section II: Analysis of the overall operating conditions of laser crystals increase in demand for the enterprise to produce the product to gain market recognition. Its sales have also maintained relatively high growth rate, the entire market sales reached 45 billion yuan share in 2009, and 03 with annual sales of less than 35 billion yuan. As shown below: Figure 12:2003 - 2009 sales growth rate over the same period, earnings and sales remained the same. As shown below: Figure 13: Total profit growth and increase in profit growth in 2006. It is for the portable use and carry of  laser pointer .The manufacturer should meet the need of the customer towards laser pointer
Nearly two years of profit is maintained at a level of 4.5 billion yuan, the relative overall industry profitability in about 10%. Section 3: Domestic product structure analysis: domestic and international product supply structure: as shown below: Figure 14: domestic and international product supply structure diagram can be seen, our production laser crystal materials 90% digestion in the domestic market, sales very small proportion to foreign countries. And have a certain relationship with the level of domestic technology, the development of the domestic manufacturers as well as related research institutions, has made certain achievements, there is still much room for development. 2: domestic output Regional structure Figure 15: Regional structure of domestic output current domestic production of the laser crystal manufacturers focused on the main producing areas in the east, south, northeast and northeast. The customer can customize the specific color laser beam light of laser pointer . The average opinion, the net effect of two laser beams to generate a damping force is opposite to the direction of atomic motion, so that the movement of atoms to slow down (cool down). 1985 Phillips, U.S. National Institute of Standards and Technology Research Institute (willam D.Phillips) and Zhu Meng-wen (Steven Chu), Stanford University, first realized the experiment of laser cooling of atoms, and a very low temperature (24? K,) sodium atom gas. They further three-dimensional laser beam to the formation of magneto-optical speak atomic imprisoned in a small region of space to be cooled to lower temperature optical viscose. After many of the new method of laser cooling are emerging, including the famous "velocity selective coherent population trapping and Raman cooling. Much attention should be paid to the accuracy of the commission and testing of the power of laser pointer .
Proposed by the French Ecole Normale Cohen - Da Nuoji (Claud Cohen-Tannodji) by Zhu mode text, they use this technology were given a very low temperature below the photon recoil limit. Since then, it has also developed a combination of magnetic field and laser-cooling technology, including polarization gradient cooling, magnetic induction cooling.