However, this heating causes the destruction of the material around the edge and thus limits the strength and the ability to produce a small fine features. UV laser direct physical damage to connected components of the atomic bonds, which is known as "cold" process approach does not produce heat instead of directly to the external material separated into atoms. 2 laser generation and development of laser science and technology inventions of the 20th century, a major achievement. It allows people to finally have the ability to drive a very small scale, the number of great movement and chaotic process of molecules and atoms of light, resulting in generation, amplification coherent infrared, visible 20,79-83). The results show that. This kind of green laster pointer includes the USB. The preparation of single-crystal nanowires exhibit bulk materials with different optical properties of nanowires at room temperature on a marked narrowing of the emission spectra for the study of stimulated emission of nanowires offers the possibility of behavior. Therefore, organic nano-materials are expected to become the next - generation of the component units of micro-optoelectronic devices. Gold rate for camera alignment precision measurement and positioning. Argon ion laser emits blue-green shade just for medicine, ophthalmology, and can be underwater. But these types of lasers have a variety of shortcomings mainly in the equipment set up another large area of high energy cost of equipment reliability, higher small place. Ruby is a typical solid-state lasers have developed many new products, these new product categories and more incentives, more convenient in many applications. The USB of 100mW laser pointer should be protected well. Also commonly used in solid-state lasers yttrium aluminum garnet laser, it's working material is alumina and yttria synthetic crystals, and mixed oxide rubidium. Laser is the neodymium ions in the crystal release, the human eye can not see infrared light, can work, can also be pulsed manner. Because of this the laser output power is relatively large, not only militarily useful, and can be widely used in industry. Laser in order to adapt to today's semiconductor industry development and design of semiconductor lasers, this laser small size, long life, motivation is simple, low threshold current, easy-to-scale production. With further research and expansion of semiconductor materials and structures, semiconductor lasers, such as the family appeared edge-emitting lasers, quantum well lasers, vertical cavity surface emitting lasers, and so the output of laser performance of a new member, the type of the output laser frequency in the visible region There are also widely distributed. The infrared technology of10mW blue violet laser pointer is a little bit old-fashioned. In particular, vertical cavity surface emitting lasers, in addition to single-longitudinal-mode output, low threshold current start-up and other outstanding features, but also on a large scale in the production process and the array of technology, so that semiconductor lasers can output high power laser and further reduce the production cost of semiconductor lasers, which will help the popularity of laser applications. Widely used UV laser engraved into the dim light from the marking and printing, UV laser industrial laser applications is the fastest growing segment of the market. This is due to a very mature technology and solid-state UV laser processing of short-wavelength laser in the unique advantages. The different needs of various applications has led to the development of UV laser manufacturers two distinct classes of pulsed laser products ideal for fragile materials. The infrared technology ofgreen laster pointer will be discussed in the meeting. Also from the metal to semiconductor and many other substances, drilling, cutting and marking on it as accurate as possible. UV laser processing capabilities of this fine is because the minimum spot diameter of convergence is directly proportional to the wavelength of the laser (due to diffraction); Thus, shorter wavelength means higher spatial resolution. Over the years, the only source of UV laser gas lasers: excimer laser in pulsed mode applications, ion laser and helium-cadmium laser application in a sequential manner. Each of these technologies for industrial applications, have significant drawbacks, including equipment, large area, limited reliability, high energy and high equipment costs. In addition, the excimer laser beam quality is poor, need to use shading film, which will waste 95% or more of the output energy. 2.4G technology of200mW Laser Pointer is more popular.