Module 3.6 Phase Velocity and Group Velocity
Auto Generation: up > ug    up = ug    up < ug    (blue point)       (red point)       Auto Restart
 

Individual waves

Combined wave

All waves
ω0 = (Grad/s) β0 = (rad/m)

Parameters:

ω0: Angular frequency

β0: Phase constant

Δω: Increment of angular freuency

Δβ: Increment of phase constant

 Wave 1 (green curve): cos[(ω0-0.5*Δω)t - (β0-0.5*Δβ)z]  

Wave 2 (magenta curve): cos[(ω0+0.5*Δω)t - (β0+0.5*Δβ)z]  

Combined wave (blue curve): Wave 1 + Wave 2

Envelope (Red dashed curve): Envelope of the combined wave
Note: it is recommended to use Chrome.