Waves that contain no power, called evanescent waves, appear when another type of this phenomenon occurs.
This type of positivity is one of the Osterwalder and Schrader axioms that guarantee that the Euclidean correlation functions used in quantum field theory can be analytically continued to Minkowski space. For metals, a quantity that describes this phenomenon is related to conductivity by the Hagens-Rubens relation in the low frequency regime. Microfacets, which split a surface into many small grooves, are one way of taking into account roughness in this phenomenon, and along with the (*) cosine law, are used to derive the Oren-Nayer model. Waves that contain no power, called evanescent waves, appear when another type of this phenomenon occurs. The Fresnel equations describe transmittance and this phenomenon, one type of which occurs past the critical angle. For 10 points, name this wave phenomenon in which the wave returns to the medium of its origin.
This type of positivity is one of the Osterwalder and Schrader axioms that guarantee that the Euclidean correlation functions used in quantum field theory can be analytically continued to Minkowski space.
{reflection} [accept {reflectivity;} accept {reflectance;} accept {total internal reflection}]