| Wavemeter, device for determining the distance between successive wavefronts of equal phase along an electromagnetic wave. |
| The electromagnetic wave generator comprises a thermionic tube having a cathode, an anode and at least one grid. |
| A property of an electromagnetic wave that describes the locus of the electric field vector as a function of time. |
| In classical language, ν is the frequency of the temporal changes in an electromagnetic wave. |
| This constitutes the microscopic origin of the scattering of an electromagnetic wave. |
| At the sub-femtosecond level, a laser pulse contains only a few cycles of the carrier electromagnetic wave. |
