Journal article · Ahead of Print article · Preprint article
Negative Differential Resistance due to Nonlinearities in Single and Stacked Josephson Junctions
Josephson junction systems with a negative differential resistance (NDR) play an essential role for applications. As a well-known example, long Josephson junctions of the BSCCO type have been considered as a source of terahertz radiation in recent experiments. Numerical results for the dynamics of the fluxon system have demonstrated that a cavity induced NDR plays a crucial role for the emission of electromagnetic radiation.
We consider the case of an NDR region in the McCumber curve itself of a single junction and found that it has an effect on the emission of electromagnetic radiation. Two different shapes of NDR region are considered, and we found that it is essential to distinguish between current bias and voltage bias.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2014 |
| Pages: | 1-7 |
| ISSN: | 15582515 , 10518223 and 23787074 |
| Types: | Journal article , Ahead of Print article and Preprint article |
| DOI: | 10.1109/TASC.2014.2311383 |
| ORCIDs: | Sørensen, Mads Peter |
Cavity resonators Engineered Materials, Dielectrics and Plasmas Equations Fields, Waves and Electromagnetics Josephson junctions Mathematical model Millimeter-wave devices Oscillators Resistance Resistors nonlinear circuits nonlinear optics nonlinear oscillators superconducting devices
BSCCO BiSrCaCuO Josephson effect McCumber curve Millimeter wave devices Nonlinear circuits Nonlinear optics Superconducting devices bismuth compounds calcium compounds cavity induced negative differential resistance cond-mat.supr-con current bias electric resistance electromagnetic radiation emission fluxon system dynamics high-temperature superconductors single Josephson junction stacked Josephson junction strontium compounds terahertz radiation source voltage bias
