This kind of green lase pointer can be focused to burn matches

He said: "Fortunately, we now manufacture pure glass for optical fiber are strong." Of the experimental glass temperature has only dropped by 0.3 ° C, but when they use fiber instead of glass block, and increase the amount of absorbed laser they done so that the temperature of the specimen cooling temperature of 16 ° C. After that, Epstein and his colleagues use a new pair of mirrors to form a cavity, and their technology to further improve this method and the corresponding expansion. Mirror to a diameter of about 3 cm, Yb-doped glass around on the inside, they can make the ytterbium fluorescence passed, so the energy is very easy to leave. With high power, this kind of    green lase pointer     can be focused to burn matches.
However, they will reflect the laser beam, the laser speed bounce in the cavity so that the cooling more efficient. Lose energy in the prototype cavity, ytterbium-doped glass to 0.5 watts per second speed. Scientists have calculated that if the cavity to be fine-tuning, its temperature can be cooled to absolute temperature of 60 degrees (about -213 ° C). Epstein is very optimistic, he said to us during the year about to have a real cooler. "Our first market may be space ─ ─ for cooling satellite sensitive detectors and electronic equipment." All the hot object The issue of infrared radiation.    green laser pointer      has the application of laser advertisement and laser projection.
For example, astronomy infrared detectors with this problem, because the thermal instruments issued by the "noise" to drown the signal from the celestial. Infrared detection equipment cooling is extremely important. So far, the track detector cooling is mainly dependent on the jars of liquefied petroleum gas, it can only be used for several years, to assume a more long-term mission of the satellite with a mechanical heat pumps, the pump of the engine vibration and electromagnetic interference will affect the infrared sensors, these infrared sensors must be carefully protected. Laser cold has no moving parts may be the best choice.    green laser pointer      is of the outstanding quality.
Paul aerospace industry technology companies in Boulder, Colorado Maude predicted: "The cooling capacity of this cooler soon can now use cryogenic devices comparable." His company is planning to Epstein laser cooler into the space. Although Epstein and Maude is expected to be very optimistic, Gosnell was more cautious. He foresaw that the cosmic rays ─ ─ space high-energy particles and radiation, they are constantly bombarding the satellite which will bring some unexpected problems. He said they may be broken ytterbium or glass rope indiscriminate fine photochemical balance, so that the increase in the proportion of re-conversion of light into that part of the heat absorbed and other issues.   usa green laser pointer      could serve as the best pointers.
He warned: "actual space applications is still far from enough, it may have for 10 years," but he also said, can be a lot of meaningful research on the physics. About the same time and the initial experiments of Epstein, Imperial College London, a research group also noted that laser cooling, but this is accidental. Chemist the Lang Busi, and Clark found that the yellow fluorescence can be generated by the red laser to the polymer film mixed with Rhodamine dye. Langbu Wales, said: "When the temperature of the polymer film to reduce several times, the yellow fluorescence disappeared. The remote control distance of   green laser pointer is no less than 15 meters.