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We present a proposal for a gravitational wave detector, based on theexcitation of an electromagnetic mode in a resonance cavity. The mode isexcited due to the interaction between a large amplitude electromagnetic modeand a quasi-monochromatic gravitational wave. The minimum metric perturbationneeded for detection is estimated to the order 7.10^(-23) using current data onsuperconducting niobium cavities. Using this value together with differentstandard models predicting the occurrence of merging neutron star or black holebinaries, the corresponding detection rate is estimated to 1-20 events peryear, with a `table top' cavity of a few meters length.Comment: 8 pages, 1 figure, references adde

Gravitational wave detection using electromagnetic modes in a resonance cavity