Using polarized maser to detect high-frequency relic gravitational waves

Understand

A GHz maser beam with Gaussian-type distribution passing through a homogenous static magnetic field can be used to detect gravitational waves (GWs) with the same frequency.

• The presence of GWs will perturb the electromagnetic (EM) fields, giving rise to perturbed photon fluxes (PPFs).
• After being reflected by a fractal membrane, the perturbed photons suffer little decay and can be measured by a microwave receiver.
• This idea has been explored to certain extent as a method for very high frequency gravitational waves.