Focusable led flash light whose power can reach 50mW can burn the match or other materials

Exciton is confined in the core region, reducing the surface recombination, the luminous quantum efficiency is greatly improved. The nanocrystals into a spherical optical microcavities, formed a photon quantum dots, similar to the planar quantum well micro-cavity lasers. Microcavity confinement effect of the light wave electromagnetic field, allowing only a certain mode of electromagnetic waves exist. Laser radiation is coupled to the laser linewidth narrower directional stronger and therefore have important applications in the manufacture of lasers. Artemyev, etc. have been successfully made CdSe nanocrystals composed of spherical micro-cavity, microcavity polymerization of MMA (PMMA) material called plexiglass. The carton package of green laser pointer can protect green laser pointer well.
Chinese scholars have also been made of glass materials for micro-cavity photon quantum dots, and similar experimental results. In addition, it was still a 20 000 ZnO nanocrystals (50 nm) Group observed laser. This is due to the scattering of light in the Group to produce interference effects in a nano-crystal, so that the emission enhancement of laser-generated. This laser is called a micro-laser. Nanocrystals because of their three-dimensional quantum confinement effects, and thus has a strong nonlinear optical properties, which will likely be in the fast light modulation, optical switching, phase conjugate optical waveguides and optical memory devices to be applied. This phenomenon is persistent spectral hole burning, spectral hole burning can be maintained for several hours. Focusable led flash light whose power can reach 50mW can burn the match or other materials.
Several different wavelengths of light irradiation, can burn a few holes, the hole depends on the absorption of non-uniform line width and uniform line width ratio of. Spectral hole burning frequency as an additional storage factors, improving thousand times more storage density on the spot in the same space. It is expected to be applied in high-density optical information storage technology. Recent years a number of important laboratory in the semiconductor nano-materials and technology invested a lot of manpower and material resources, have made significant progress in the preparation of materials, physical and chemical properties and devices developed. SIA made it clear that if this industry (referring to the semiconductor industry) should continue to provide the U.S. a strong force of economic growth, requires the continued support of the Government. The warranty of green laser pointer of this factory is relatively longer.
Scientific results into technology time is about 10-15 years, in order to meet the needs of sustainable development of IT hardware, and now it is in nanostructure science and technology investment in the crucial moment. The current information society, in addition to traditional communication technologies, the development of high-tech IT for computers, microwave communication and optical communication. Need to apply a variety of information to the magnetic functional materials (referred to as the letter of magnetic material) in these high-tech IT, the main magnetic recording materials, magnetic storage materials, magnetic microwave materials and magneto-optical materials. The magnetic recording materials, magnetic materials, magnetic recording technology including magnetic recording media materials and magnetic recording head materials (referred to as the head material).  green laser pointer should be disassembled by the professional worker.
Magnetic recording (known as write) process, first sounds, images, digital information into electrical signals into magnetic signals through the recording heads, magnetic recording media, put the magnetic signal to save (record) in the magnetic recording medium materials. Need to remove the information recorded in the magnetic recording media materials, subject to the same magnetic recording (write) process the reverse process (known as the read out process), the magnetic signal through the read head in the upcoming magnetic recording media materials, will magnetic signals into electrical signals, then the electrical signal into sound (similar to the phone), images (similar to the TV) or digital (like computers). The quality inspection should be performed for all kinds of green laser pointer .