Science Daily September 26, 2019
According to an international team of researchers (India, USA – Pennsylvania State University) surface-plasmon-polariton (SPP) waves guided by the interface of the two materials can continue propagating even if the metal wire has a break or the metal dielectric interface terminates abruptly. The SPP wave can travel in air for a few 10s of micrometers or the equivalent of 600 transistors laid end to end in a 14 nanometer technology chips. As waves are localized, signal delay and crosstalk may be reduced using optical interconnections based on SPP waves. The problem with using SPP waves in designing circuits is that while researchers know experimentally that they exist, the theoretical underpinnings of the phenomenon were less defined, the researchers took multiple snapshots of the electromagnetic fields. When strung together, it becomes a movie that shows the propagation of the pulse modulated SPP wave. The findings may be the solution to problems caused by shrinking electronic components…read more. Open Access TECHNICAL JOURNAL
Schematic of the computational domain of the initial-boundary-value problem for information transfer by an amplitude-modulated SPP wave guided by a silver/silicon interface across a wall between silicon and another material. Credit: Nature Scientific Reports volume 9, Article number: 12095 (2019)Â