According to a study, published in the journal Nature Communications, a directly modulated photonic crystal nanocavity light-emitting diode (LED) with 10 GHz modulation speed and less than 1 fJ per bit energy of operation has been developed. This research can change speed and usability of computers and mobiles in coming days. Also Read - CBSE & ICSE Board Exams 2021: Top 7 Things to do For Preparation |Watch Video
An ultra-fast light-emitting device that can flip on-and- off 90 billion times a second and could form the basis of optical computing has been developed. At its most basic level, your smartphone’s battery is powering billions of transistors using electrons to flip on and off billions of times per second. Also Read - CBSE Board Exam 2021: Tips to Cope Up With Stress For Children And Parents | Watch Video
But if microchips could use photons instead of electrons to process and transmit data, computers could operate even faster. But first engineers must build a light source that can be turned on and off that rapidly. While lasers can fit this requirement, they are too energy-hungry and unwieldy to integrate into computer chips. Researchers are now one step closer to such a light source. Also Read - Telangana Schools to Reopen for Classes 6 and 8 After Nearly 11 Months
“This is something that the scientific community has wanted to do for a long time,” said Maiken Mikkelsen, assistant professor of electrical and computer engineering and physics at Duke. “We can now start to think about making fast-switching devices based on this research, so there’s a lot of excitement about this demonstration,” he added. The eventual goal is to integrate the new technology into a device that can be excited either optically or electrically.
It is important to know that in 2014 was awarded to Isamu Akasaki and Hiroshi Amano from Japan, and Shuji Nakamura from the US for the invention of blue light emitting diodes (LEDs)
Image Courtesy: The Nature