标题: 求助！ [打印本页] 作者: lawrence425 时间: 2007-8-30 15:18 标题: 求助！ 1. Given the relation:
ω=α^2 β^1/3
ω is angular frequency and β is propagation constant.
(a) Calculate the phase velocity.
(b) Calculate the group velocity.
(c) Derive an expression for dispersion parameter D.
Note: is a constant.