SCATMECH > Conventions

Conventions

SCATMECH assumes that harmonic fields have a implicit time dependence, exp(−i omega t). Use of this convention [as opposed to that which assumes a exp(+ i omega t)], implies that the imaginary component of the index of refraction is positive.

SCATMECH assumes that Jones vectors are represented using a specific right-handed basis set {x,y,k}, where k is the direction of propagation. For scattered light from surfaces, the right-handed basis set is {s,p,k} where s is perpendicular to the surface normal and the direction of propagation, and p is perpendicular to s and k.

Using these conventions, a Jones vector (1,i) represents a left-handed circularly polarized (LCP) wave, and (1,−i) represents a right-handed circularly (RCP) polarized wave. Here, we define a RCP (LCP) wave as one which, looking toward the source, the electric and magnetic fields rotate clockwise (counter-clockwise) at a given point in space.

The conventions for Stokes vectors are:

(1,0,0,0) = unpolarized radiation
(1,1,0,0) = s-polarized radiation
(1,−1,0,0) = p-polarized radiation
(1,0,1,0) = radiation polarized along the s+p direction
(1,0,−1,0) = radiation polarized along the s−p direction
(1,0,0,1) = LCP radiation
(1,0,0,−1) = RCP radiation

Top of Page.

For More Information

SCATMECH Technical Information and Questions
Sensor Science Division Home Page
Sensor Science Division Inquiries
Website Comments

Current SCATMECH version: 7.22 (April 2021)