1. Terahertz emission and detection both based on high-Tc superconductors: Towards an integrated receiver.
- Author
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An, D. Y., Yuan, J., Kinev, N., Li, M. Y., Huang, Y., Ji, M., Zhang, H., Sun, Z. L., Kang, L., Jin, B. B., Chen, J., Li, J., Gross, B., Ishii, A., Hirata, K., Hatano, T., Koshelets, V. P., Koelle, D., Kleiner, R., and Wang, H. B.
- Subjects
JOSEPHSON junctions ,SUPERCONDUCTORS ,ELECTRODES ,DETECTORS ,TRANSITION temperature ,RESISTANCE heating ,TERAHERTZ spectroscopy - Abstract
We have combined a stand-alone Bi2Sr2CaCu2O8 intrinsic Josephson junction stack, emitting terahertz radiation, with a YBa2Cu3O7 grain boundary Josephson junction acting as detector. The detector is mounted on a lens, positioned 1.2 cm away from the emitter on a similar lens. With the emitter radiating at 0.5 THz, we observed up to 7 Shapiro steps on the current-voltage characteristic of the detector. The ac current induced in this junction was 0.9 mA, and the dissipated power was 1.8 μW. The setup, although far from being optimized, may be considered as a first step towards an integrated high-Tc receiver. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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