Researchers at Penza State University have developed a new way to create energy-efficient lasers with tunable wavelengths.
Quantum dots are tiny particles of matter confined in three directions where electrons cannot move freely. The development of scientists uses quantum molecules – two quantum dots located close to each other and interacting with each other.
The researchers managed to discover an interesting interaction pattern between two quantum dots: a tunnel effect occurs between them – particles of one quantum dot break through the barrier, and energy from one point enters the other. Scientists have managed to learn how to control – add or subtract – the number of passing electrons during this process. So they were able to change the intensity of the laser light.
Thus, the experts were able to reconstruct the wavelength of laser production from the infrared range to the visible light range. The laser radiation converter can be used wherever information is transmitted using light – in quantum computers, in the manufacture of microcircuits, in spectroscopy.
Source: Ferra
I am a professional journalist and content creator with extensive experience writing for news websites. I currently work as an author at Gadget Onus, where I specialize in covering hot news topics. My written pieces have been published on some of the biggest media outlets around the world, including The Guardian and BBC News.
