Demonstration of sub-3 ps temporal resolution with a superconducting nanowire single-photon detector
| Autor: | Marco Colangelo, Kevin L. Silverman, Richard P. Mirin, Garrison M. Crouch, Varun B. Verma, Qing-Yuan Zhao, Eric Bersin, Adriana E. Lita, Paul D. Hale, Simone Frasca, Jason P. Allmaras, Edward Ramirez, Andrew D. Beyer, A. G. Kozorezov, Matthew D. Shaw, Cristian Pena, Neil Sinclair, Sae Woo Nam, Angel E. Velasco, Ryan M. Briggs, Karl K. Berggren, Si Xie, B. Bumble, Travis M. Autry, Galan Moody, Jake D. Rezac, Francesco Marsili, Di Zhu, Maria Spiropulu, Boris Korzh, Martin J. Stevens, Thomas Gerrits, Emma E. Wollman, Andrew E. Dane |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Niobium nitride
Materials science business.industry Detector Nanowire Optical communication Superconducting nanowire single-photon detector 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics chemistry.chemical_compound chemistry Temporal resolution 0103 physical sciences Optoelectronics 0210 nano-technology business Image resolution Jitter |
| Popis: | Improvements in temporal resolution of single-photon detectors enable increased data rates and transmission distances for both classical and quantum optical communication systems, higher spatial resolution in laser ranging, and observation of shorter-lived fluorophores in biomedical imaging. In recent years, superconducting nanowire single-photon detectors (SNSPDs) have emerged as the most efficient time-resolving single-photon-counting detectors available in the near-infrared, but understanding of the fundamental limits of timing resolution in these devices has been limited due to a lack of investigations into the timescales involved in the detection process. We introduce an experimental technique to probe the detection latency in SNSPDs and show that the key to achieving low timing jitter is the use of materials with low latency. By using a specialized niobium nitride SNSPD we demonstrate that the system temporal resolution can be as good as 2.6 ± 0.2 ps for visible wavelengths and 4.3 ± 0.2 ps at 1,550 nm. Knowledge about detection latency provides a guideline to reduce the timing jitter of niobium nitride superconducting nanowire single-photon detectors. A timing jitter of 2.6 ps at visible wavelength and 4.3 ps at 1,550 nm is achieved. |
| Databáze: | OpenAIRE |
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