Nei laboratori dell'Università della Pennsylvania nasce il primo circuito in cui all'elettricità è stata sostituita la luce. Nader Engheta , docente di elettronica alla Penn's School of Engineering and Applied Science, ci prova dal 2005, quando con alcuni studenti pubblicò un articolo che conteneva la tracce concettuali di questa interessante innovazione, denominata Metactronics . Experimental realization of optical lumped nanocircuits at infrared wavelengths Nature Materials 11, 208–212 (2012) Published online 29 January 2012 Yong Sun, Brian Edwards, Andrea Alù and Nader Engheta Abstract The integration of radiofrequency electronic methodologies on micro- as well as nanoscale platforms is crucial for information processing and data-storage technologie. In electronics, radiofrequency signals are controlled and manipulated by ‘lumped’ circuit elements, such as resistors, inductors and capacitors. In earlier work, we theoretically proposed that optical nanostructures, when