The light reflected on this quantum mirror is reflected by an art display image Source: Funny Science Website
According to the American Fun Science website recently reported, two independent scientific research teams have respectively developed the thinnest mirror so far - only one atom of molybdenum selenide (MoSe2) flakes, this engineering miracle will be the physical world's The limit advances one step. Researchers say that this thin mirror can be used to develop very small specialized sensors and computer chips that use lasers to transmit information.
Scientists at Harvard University and Zurich Institute of Quantum Electronics in Zurich developed such mirrors in their respective experiments. Although the thickness of these mirrors is close to the smallest possible thickness of the object, they can reflect much of the incident light - Harvard team's mirror is placed on a silicon base and can reflect 85% of incident light; the Swiss team's mirror is placed On the silicon oxide base, 41% of incident light can be reflected. Both mirrors reflect light that is deep red in the 780 nm range.
Scientists explained that if one violently impacts a proton or light particle in an atom, the electrons are likely to transition from a low-energy orbit to a high-energy orbit. In this way, an electron-hole pair will form within the electric field. When exposed to certain wavelengths of light, electrons around MoSe2 are likely to also transition. The electrons are negatively charged, and the protons in the nucleus are positively charged. Therefore, these electron-hole pairs will draw positive charges from the protons, making holes behave like particles. Nearby negatively charged electrons will attract these "false" particles and, in some cases, pair with quantum mechanics objects called excitons. These excitons themselves release light, interact with the incident light and send it back in the way it was incident. As a result, these MoSe2 sheets work like a mirror.
The researchers said that the voltage applied to the MoSe2 wafers will fluctuate due to their different voltages, and this effect will occur very quickly, so it is expected to be used in areas that require high-speed computing.
The latest research was published in Physical Review Letters.
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