Patent ID: 7560695

Claim:
A detecting apparatus for detecting information of a liquid object, the detecting apparatus comprising: a transmission path; an electromagnetic-wave supplying unit for supplying an electromagnetic wave in a frequency range between 30 GHz and 30 THz to the transmission path; an electromagnetic-wave detecting unit for detecting the electromagnetic wave transmitted through the transmission path; and an infiltrative holding member for infiltration and holding of the liquid object, wherein the infiltrative holding member is set at a location containing at least a portion in which an electric field distribution of the electromagnetic wave propagating along the transmission path extends, wherein a non-infiltrative member which is incapable of infiltrating the liquid object is set partly or entirely surrounding the infiltrative holding member, wherein a spacing, whose size is less than a wavelength of the electromagnetic wave supplied by the electromagnetic-wave supplying unit, is present between the infiltrative holding member and the non-infiltrative member, and wherein the spacing between the infiltrative holding member and the non-infiltrative member comprises a flow path for supplying the liquid object to the infiltrative holding member.