Detection of On-Chip Generated Weak Microwave Radiation Using Superconducting Normal-Metal SET
| Autor: | Alexander B. Zorin, Behdad Jalali-Jafari, Sergey V. Lotkhov |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Josephson effect
Photon 02 engineering and technology lcsh:Technology 01 natural sciences law.invention lcsh:Chemistry law Condensed Matter::Superconductivity 0103 physical sciences single-photon detector microwave photon single-electron transistor photon-assisted tunneling General Materials Science 010306 general physics lcsh:QH301-705.5 Instrumentation Quantum tunnelling Fluid Flow and Transfer Processes Superconductivity Physics lcsh:T business.industry Process Chemistry and Technology Transistor Detector General Engineering 021001 nanoscience & nanotechnology lcsh:QC1-999 Computer Science Applications SQUID lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Optoelectronics lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology business lcsh:Physics Microwave |
| Zdroj: | Applied Sciences, Vol 6, Iss 2, p 35 (2016) Applied Sciences; Volume 6; Issue 2; Pages: 35 |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app6020035 |
| Popis: | The present work addresses quantum interaction phenomena of microwave radiation with a single-electron tunneling system. For this study, an integrated circuit is implemented, combining on the same chip a Josephson junction (Al/AlO x /Al) oscillator and a single-electron transistor (SET) with the superconducting island (Al) and normal-conducting leads (AuPd). The transistor is demonstrated to operate as a very sensitive photon detector, sensing down to a few tens of photons per second in the microwave frequency range around f ∼ 100 GHz. On the other hand, the Josephson oscillator, realized as a two-junction SQUID and coupled to the detector via a coplanar transmission line (Al), is shown to provide a tunable source of microwave radiation: controllable variations in power or in frequency were accompanied by significant changes in the detector output, when applying magnetic flux or adjusting the voltage across the SQUID, respectively. It was also shown that the effect of substrate-mediated phonons, generated by our microwave source, on the detector output was negligibly small. |
| Databáze: | OpenAIRE |
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