Defects Find Applications In Quantum Technology Green Laser Pointer
The sensitivity of existing microwave green laser pointer amplifiers is limited by background noise. Physicists at the University of Chicago, Illinois, who were not involved in the study, point out. This latest technology "reduces the noise of these amplifiers while allowing them to operate at room temperature." "This work is very exciting," he said. The research is based on a system built in 2012 by researchers from the same team. The device also works at room temperature, but it can only generate stimulus microwave pulses, which are not as useful as continuous beams. The team did this by replacing a green laser pointer device called a "gain medium." The key component is to solve this problem.
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The first green laser pointer device used an organic molecule called pentacene. It will degrade over time. In the new instrument, researchers inserted a small diamond that was generated under special conditions. This diamond is more stable and produces uninterrupted radiation. Researchers report the findings in the March 21 issue of Nature. Physicists at the Chinese University of Hong Kong, China said that the latest microwave lasers are still just a proof of principle and that their energy and stability need to be improved to match existing equipment. But Liu Renbao said that by making cheaper and more convenient equipment, it can benefit the current field of low temperature amplifiers. In addition, Liu Renbao pointed out. This type of microwave laser uses a characteristic of the diamond it uses—the so-called "nitrogen-vacancy center" with small defects. This means it may also use these flaws to find green laser pointer applications in quantum technology.
Close distance focusing laser radiation damage is corresponding long range. When the parallelism of the laser is the same, different wavelength laser has different focusing limit. For instance, focusing limit of 1064nm infrared laser is about 20 times of 532nm green laser. In other words, the 532nm green laser radiation strength on unit area is 20 times stronger than 1064nm infrared laser with same output power. Generally speaking, longer wavelength laser devices has bigger focusing limit than low powered lasers. In an actual line projection, the user can try to mount it on any vertical or horizontal surface of any machine or device. For example, in precise cloth cutting jobs, this advanced laser line generator is able to provide a highly bright and visible green reference line for precise and accurate line positioning.
2020-02-06 03:10:48
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