Could someone help me to express planar wave?
I know how to express it in vector phone with the phase difference but struggling with the complex form, more http://en.wikipedia.org/wiki/Plane_wave:
$$U(\bar r, t) = A_0 e^{i \left( \bar k \cdot \bar r - wt + \phi \right)}$$
How can I specify the phase such as right-hand-circular-polarized in the Complex form?
P.s. Right-hand-circular-polarized means phase-difference $\phi=\pm \pi/2$ but only in $\sin$ -term or only in $\cos$ -term, not in both. If I use the complex form, I cannot see how I can express it with such as phase difference. Sho…