A novel technique is developed to characterize, on-chip and in-situ, the non-uniform temperature distributions on high-Tc superconductor BSCCO for achieving coherent THz photon emission.
Significance and Impact
This intrinsic Josephson junction sensor array provides a new element in next-generation terahertz circuits and opens a new route towards high-quality nonlinear superconducting devices for quantum information science.
- A micro-nanosized intrinsic Josephson-junction sensor array was fabricated on BSCCO.
- Temperature distribution was determined by measuring the critical current of each junction stack.
- Cleanroom and low-temperature facilities at the Center for Nanoscale Materials (CNM) were used for this work.
Work was performed in part at CNM.
About Argonne’s Center for Nanoscale Materials
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