Haituo green laser pointer firm studies continuously

green laser pointer company adopts flow line mass production
In 1988, the use of dimensionless quantity - M2 beam quality factor of a more scientific and reasonable description of the laser beam quality, and adopted by the International Standards Organization. The actual width of the beam waist and far-field divergence angle of the product 1, define: M = base width of Gaussian beam waist and far-field divergence angle of the product 2 for the fundamental mode (TEM00) Gaussian beam, with M2 = 1, the beam good quality, the actual beam M2 are greater than 1, characterized by a multiple of the actual diffraction-limited beam characterized by a multiple of the actual beam diffraction limit.Haituo green laser pointer company challenges the current situation. Characterization of the actual beam quality due to multiple sub-diffraction-limited beam M2 can be expressed as πD0θ M = 4λ 2 1.2 laser interaction with solid materials 1, the laser and the role of the general rules of A material change in energy processes: laser incident surface, a were reflected, a part of the Division into the timber interior. Of opaque material, transmitted light is absorbed. The absorption rate, or rate of change of state of radiation: the power density in different conditions, the surface region has a variety of changes. Such changes include temperature, melting, vaporization, the formation of holes and plasma cloud, etc.Haituo green laser pointer firm studies continuously and makes progress at work. Material changes in the physical state of the surface area in turn greatly affect the absorption of the laser material. 1.2 Laser interaction with solids 2, the metal material of the laser absorption characteristics in general, the absorption rate with changes in wavelength and temperature change. Reflectivity under normal incidence extinction coefficient formula, n is the real part of complex absorption rate; K for the extinction coefficient. For metallic materials for n and K are a function of wavelength and temperature. 1.2 Laser interaction with solids 1) wavelength absorption of the material impact of the figure can be seen in the 0.4-1.0μm wavelength range, n, K changes slowly, while the absorption rate in the region changed greatly. N and K in the long-wave region increases rapidly with increasing wavelength, while the corresponding absorption rate decreases. People in Haituo green laser pointer company accept all suggestions and opinions.1.2 laser interaction with solid materials commonly used metal absorption rate of 20 ℃ 1.2 metal absorption rate of laser interaction with solid materials, 2) the temperature of the material absorption rate of A, the metal material absorptivity (λ = 10.6? M ) 1.2 with temperature laser-solid interaction between the material B, the absorption rate of metallic materials and metal resistivity with temperature relation in which: r20 is 20 ℃, γ is the resistivity of the metal resistivity with temperature coefficient of T is the material temperature of C, the CO2 laser (λ = 10 .6? m) measured the absorption rate of the resistivity material, you can calculate the absorption rate of the material. material resistivity and temperature coefficient case with steel at room temperature, the absorption rate is how much? Haituo green laser led group sums up experience from success.1500 ℃? 1.2 laser interaction with solid materials 3) surface conditions on the material at room temperature the absorption rate of the metal surface of the visible light absorption rate than the 10.6 micron wavelength infrared light absorption rate is almost an order of magnitude. Table is used in the absorption rate of smooth metal surface measured.