Abstract: | In this paper, the compositions in a laser absorption region can be
determined from the experiment of laser impulse coupling. When the
ambient pressure varies from 9325 to 33325Pa, the compositions are
vapour and plasma; while from 35325 to 101325Pa, they are ambient air
and plasma. By analysing the relation between the degree of
compression and the ambient pressure, the compositions can be
determined and the variation of plasma can be explained. |