 |
American scientists have used the thinnest (three-atom-thickness) semiconductors ever to produce a new type of nano-laser that is not only more energy-efficient, easy to manufacture, but compatible with current electronic devices. The researchers said that this research has laid a solid foundation for the next generation of computing devices that ultimately use light instead of electronic transmission of information.
Lasers play an important role in everything from medical treatment to metal cutting to electronics. However, in order to meet modern computing, communications, imaging, and sensing requirements, scientists have been hoping to make laser systems that are smaller and consume less energy. . The nano-laser developed by Washington University and Stanford University using a tungsten-based semiconductor that is only three atoms thick as a light-emitting "gain material" will meet the above requirements.
Wu Sanfeng, the principal of the research, said: “The tungsten-based semiconductors used in nano-lasers have only recently come to the fore. Single-layer tungsten molecules are very thin and can emit light efficiently. Scientists have used it to make transistors. Diodes, solar cells, etc. Now we are using it to make nano lasers."
Although nano-sized lasers are petite and invisible to the naked eye, they can be used in a wide range of applications—from next-generation computing devices to implantable microchips that can monitor health. However, the gain materials previously developed for nano-lasers are either thicker or embedded in the cavity structure that traps light, making them difficult to manufacture and not easily integrated with current circuits and computing devices. According to the report of the Physicist Organization Network on March 25 (Beijing time), the three atomic-thickness semiconductors used in the latest nano-lasers can be directly placed in commonly used optical cavities. Therefore, the key elements that can make up the laser are effectively combine together. Moreover, only 27 nanowatts of electricity is needed to make it emit light, which is extremely energy efficient.
The co-author of the study, Aka Maumunda, assistant professor of electrical engineering and physics at the University of Washington, said that another advantage of the new nano laser is that it is easy to manufacture, and it can also work with common silicon components found in electronic devices; Using an atomic plate as a gain material not only makes it versatile and can better control its properties. The latest nano-laser technology has allowed scientists to take an important step toward photon calculation and short-range optical communication. Next, they intend to make more in-depth studies of the properties of the light emitted by the laser.
The researchers hope that they can further manufacture electrically-driven nano-lasers and eventually realize the use of light instead of electrons to transfer information between computer chips and motherboards. The current information transmission process may cause the system to overheat, and may also waste a lot of energy. Therefore, giants including Facebook, Hewlett-Packard, and Intel, which have a large number of data centers, are interested in more energy-efficient solutions. The use of photons instead of electrons to transmit information consumes less energy and promises to enable next-generation computing devices to exceed current bandwidth and energy constraints. (Reporter Liu Xia)
Pull-Out Spray,Pull-Out Spray Kitchen Faucet,Pull Out Spray Tap Kitchen,Pull Out Spray Faucet
ASHOWER , https://www.ashower.com