Friday, October 19, 2012

The director will perform the incoming test of laser pointer

Another new batch of laser pointer needs to be completed in one week.
When the refraction of light get out of momentum, the particle momentum on the reaction points to the laser beam on the center, so the particles are always attracted to the laser beam center. If the particles are very small and has very little gravity or friction, when the laser beam moves, the particles will move with it. However, the laser tweezers move the blood cells a few micrometers in diameter, but now want to move from 2 to 20 nm diameter carbon nanotubes will be much trouble. Therefore, the use of a single laser tweezers to move large amounts of carbon nanotubes to a certain location, may be the same trouble with an atomic force microscope. For this reason, scientists have used a liquid crystal laser beam into the separator 200 can be individually controlled a small laser beam, researchers can control the laser beam so as to form a triangle, quadrilateral, pentagons and hexagons and other shapes, thus moving large groups of nanotubes so that they locate in the surface of a microscope slide, to achieve the purpose of moving carbon nanotubes. The new research and development center of laser pointer will be completed in two months.
The success of the optical capture technology by the University of California nanotube experts, physicist Alex ? Ze Teer praise, he said, because there is not a reliable technique to manipulate a large number of nanotubes, which kinds of new optical capture technology has the potential for industrial. Laser applications in medicine is divided into three categories: Laser Life Science, laser diagnostics, laser treatment, laser treatment is divided into: laser surgery, laser bio-stimulation of the weak non-surgical laser treatment and photodynamic therapy. Used in dental laser dental laser system based on the different roles of the application is divided into several different laser systems. Another video conference of laser pointer will be held in next month.
The director will perform the incoming test of laser pointer
The video conference of laser pointer plays an important role. Distinction is an important feature of the laser: the wavelength of light, different wavelengths of laser on the role of different organizations in the visible and near infrared spectral range of light absorption is low, penetrating and strong, can penetrate into the tooth structure more deep parts, such as argon ion laser, diode laser or a Nd: YAG laser (Figure 1). The Er: YAG laser and the CO, laser light penetration is poor, can only penetrate the tooth structure about 0.01 mm.

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