The electron oscillates parallel to the electric field and at the same frequency, but it does not necessarily oscillate in phase with the light wave.

该电子以相同的频率来作平行于电场的振动，但此振动不见得和原光波同相位。

youdao

The phase velocity of the plasma wave approaches the velocity of light due to the action of the longitudinal electric field.

在这样的纵向电场作用下，等离子体波的相速接近光速。

youdao

Modulation of light refers to changing parameters of light wave such as amplitude, intensity, and phase, frequency, polarization, etc. to make it carry message.

光辐射的调制是指改变光波振幅、强度、相位或频率、偏振等参数使之携带信息的过程。

youdao

They discovered that by shifting the "phase" of light so that the peaks of one wave line up with the valleys of an adjacent one, the two cancel each other, creating "shadows" between waves that are smaller than the waves themselves(see diagram, p. 141).

FORBES: Trick Of The Light

They discovered that, by shifting the "phase" of light so that the peaks of one wave line up with the valleys of an adjacent wave, the two waves cancel each other out, creating "shadows" between waves that are smaller than the waves themselves(see chart).

FORBES: Trick of the Light