Nano "magnifying glass" can magnify light 10000 times
scientists at the University of Wisconsin Madison recently developed an optical device that can magnify light 10000 times. Surprisingly, this magical "magnifying glass" is only a few nanometers large. The researchers said that the research is expected to significantly improve the camera's low light shooting performance and has great potential in improving the conversion efficiency of solar cells. Relevant papers were published in the recently published journal Physical Review Letters
light is similar to sound in some aspects, and can produce resonance. With this way, the surrounding light can be amplified. Scientists at the University of Wisconsin Madison have created nano "magnifiers" based on this principle. It is actually a nano resonator, which can shorten the wavelength of light, collect a large amount of light energy, and then scatter it in a very large area. This means that its scattered light can be used for imaging, which can magnify the optical size of the object like a magnifying glass. 6.1 before the equipment arrives at Party A's site
Yu Zongfu, an assistant professor of electronic and computer engineering at the University in charge of the research, said: "just like the strings can make the surrounding air vibrate and produce beautiful music, this very small optical device can absorb light from the surrounding and produce surprisingly powerful output."
Yu Zongfu said that they are developing photoelectric sensors based on this technology, which will help photographers take better images under weak light conditions. In the field of imaging, this ability is significantly better than traditional glass and resin lenses, because these traditional optical materials are more vulnerable to their own size and light direction
in view of the ability of nano resonators to absorb a large amount of light, this technology also has great potential in improving the efficiency of solar photovoltaic conversion. Due to the large optical cross-section of a batch of key laboratories, that is, its luminous size is far larger than its actual physical size. One advantage of this is that it can get rid of the headache of heating problems that often occur in similar systems, making passive heat dissipation possible
according to the researchers, the light scattering ability of this nano resonator is significantly better than that of the previous design. The installed capacity of domestic photovoltaic power generation is more than 77.42 million KW, opening up a new way in the field of light transmission and light sensing
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