The development of ultra fast laser short board based on LED WiFi

Science and Technology Daily News, since the last century since its inception in 60s, the laser has been in many areas, but it has been "display skills to the full" is a short board, is only a single wavelength light. Now, scientists in the United States to solve this problem, the first time they developed a white light laser. The researchers said that the white light laser than the light emitting diode (LED) light and high efficiency, the future will play an important role in the field of wireless communications and lighting.

From the Arizona State University, electronic computer and Energy Engineering Institute Ning Cunzheng (transliteration) led the team developed a new nano sheet. This thin semiconductor size is only 1/5 of the hair, hair thickness is only 1/1000 of the thickness, which has three parallel parts, each part of the laser can emit a color red, blue and green colors in the. The laser device can launch all visible light, from red to green to blue, any color or colors in between, when the "encounter", appeared white laser.

The latest research to replace LED become the mainstream laser light source to a step forward. Laser brighter and more energy-efficient and can provide more accurate and vivid color display, can be used for computer and television screens. The researchers also confirmed that their new equipment can be issued than the current industry standard 70% color display.

The study on another important application or will be visible to the field of optical communication, the future indoor lighting system or can also be used for communication. The scientists are currently developing the technology called "Li-Fi" (also known as visible light wireless communication, wireless transmission of information using fast light pulse). But now the "Wi-Fi" is the use of radio waves. The speed of Li-Fi can reach Wi-Fi 10 times, while the white laser Wi-Fi may be LED Li-Fi 10 to 100 times based on currently being developed.

Although this concept is very important, but to the white light emitting laser applied to real life lighting or display system, still faces great obstacles. The researchers said, the next key is to obtain the same white laser in battery driven. The current presentation, researchers must make electronic luminescence using a laser. The new experiment will pave the way for the final white laser in electric operation.

Chief editor punctuate

White light laser is not in the newborn, color display, special lighting, surgical diagnosis and white light interference it useful in the experiment. But a "whole" white light laser has not been invented. Only a short while ago, the way to solve this problem is to use a few independent lasers to produce color. A laser can simultaneously output RGB colors, reducing unnecessary large device, eliminating the need for the light coaxial difficulties, and save the cost. Although at present and the practical application of this equipment and a little distance, but the first to verify the success of the concept is still underestimated.

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