The spaser is a proposed nanoscale source of optical fields that ... it is first useful to explain how it is possible to beat the diffraction limit and focus electromagnetic waves to spots much ...

Einstein’s theories of relativity successfully explain the behavior of gravity ... For instance, photons are quanta of the electromagnetic field, and the quarks and leptons are quanta of ...

Introduction to electromagnetic waves in electrical engineering. Topics include: concepts of transmission lines, electrostatics and magnetostatics; Maxwell's equations for time-varying fields; ...

Satellites have managed to detect faint electromagnetic signals generated by ocean tides, suggesting that space-born sensors ...