Simulation results on submillimeter wave detection by Josephson fluxonic diode and a method to address its focal plane array

Application of radiation to a reverse-biased Josephson fluxonic diode (JFD) creates vortex-antivortex pairs. Pairs are created at each peak of sinusoidal radiation and move under the application of the bias current, exhibiting a voltage which depends on the frequency of incoming radiation. Simulation results for frequencies ranging from 50 to 700 GHz have been obtained. A simple and practical addressing scheme is proposed for a matrix of JFD pixels. Ease of fabrication, inherent gain, simultaneous determination of amplitude and frequency of radiation, large output current, and simple addressability in focal plane arrays are among the advantages of JFD as a direct submillimeter wave detector