1. A method for determining at least one electrical property of at least one target, comprising: applying a plurality of stimulation radiations to the at least one target; receiving at least one signal from the at least one target in response to the applied radiations; determining electromagnetic-field-related quantities associated with the at least one signal provided from the at least one target; providing the electromagnetic-field-related quantities to procedures to relate the electromagnetic-field-related quantities to a plurality of unknown electrical property values and residual field-related unknown values of the at least one target; and using a computer hardware arrangement, determining the at least one electrical property of the at least one target based on the determination of the procedures.