Intensity is the time-average of this quantity.
In a Laguerre-Gaussian laser mode, this quantity is proportional to the Gouy phase. This quantity was independently discovered by Nikolay Umov, who generalized it to liquid media. This quantity in a cylindrical capacitor located an in H-field produces a clockwise energy flow. If a conductor has significant resistance, this quantity will tilt towards the conductor and become perpendicular to the surface. This quantity divided by the (*) speed of light yields radiation pressure. The negative divergence of this quantity is found by the time derivative of energy density, plus current density times electric field. This quantity is equal to the cross product of electric and magnetic field vectors, divided by vacuum permeability. Intensity is the time-average of this quantity. For 10 points, name this vector quantity symbolized S, which represents energy flux density and points in the direction of propagation of an electromagnetic field.
In a Laguerre-Gaussian laser mode, this quantity is proportional to the Gouy phase.
Poynting vector