Finkel, M. (author), Thierschmann, R. (author), Katan, A.J. (author), Westig, M.P. (author), Spirito, M. (author), Klapwijk, T.M. (author) We have realized a microstrip based terahertz (THz) near field cantilever that enables quantitative measurements of the impedance of the probe tip at THz frequencies (0.3 THz). A key feature is the on-chip balanced hybrid coupler that serves as an interferometer for passive signal cancellation to increase the readout circuit sensitivity...
journal article 2019