倏逝波通常是指由于全反射而在两种不同介质的分界面上产生的一种电磁波,其幅值随与分界面相垂直的深度的增大而呈指数形式衰减-J e. wave usually is because the total reflection and in two different media on the boundary of produce an electromagnetic wave, the amplitude with face and boundary and the increase of the