A team from the Faculty of Physics and the Center for Quantum Optical Technologies at the University of Warsaw has developed a new type of all-optical radio receiver based on the fundamental properties of Rydberg atoms. The new type of receiver is not only extremely sensitive, but also provides internal calibration, and the antenna itself is powered only by laser light.
The results of the work, in which Sebastian Borówka, Mateusz Mazelanik, Wojciech Wasilewski and Michał Parniak participated, were published in Nature Communications. They open a new chapter in the technological implementation of quantum sensors.
In today’s society, huge amounts of digital information are transmitted around us every second. Much of it is transmitted by radio, i.e. using electromagnetic waves. For a very long time, amplitude modulation has been used to encode information, sending stronger and weaker waves.