Re:A new material helps transistors become vanishingly small
by ncmncm on Sunday July 19, 2020 @05:45PM
(#23892709)
Fascinating.
I had only just learned about "evanescent wave" interactions. The idea is that, alongside wave propagation, E-M mechanics admits numerous non-wave, and therefore short-range solutions. These solutions are necessary to explain total internal reflection. E-M interactions with materials a short distance beyond the boundary can change the reflectance. ATR is clever in using multiple such interactions to sample properties of a material close enough to the boundary.
I had only just learned about "evanescent wave" interactions. The idea is that, alongside wave propagation, E-M mechanics admits numerous non-wave, and therefore short-range solutions. These solutions are necessary to explain total internal reflection. E-M interactions with materials a short distance beyond the boundary can change the reflectance. ATR is clever in using multiple such interactions to sample properties of a material close enough to the boundary.