Superconducting nanowire single photon detector on diamond

Journal Article · Mon Mar 24 04:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4869574· OSTI ID:22258577

Atikian, Haig A.; Burek, Michael J.; Choy, Jennifer T.; Lončar, Marko ^[1]; Eftekharian, Amin; Jafari Salim, A.; Hamed Majedi, A. ^[2]

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1. School of Engineering and Applied Sciences, Harvard University, 33 Oxford Street, Cambridge, Massachusetts 02138 (United States)
2. University of Waterloo, 200 University Ave West, Waterloo, Ontario N2L 3G1 (Canada)

Superconducting nanowire single photon detectors are fabricated directly on diamond substrates and their optical and electrical properties are characterized. Dark count performance and photon count rates are measured at varying temperatures for 1310 nm and 632 nm photons. A multi-step diamond surface polishing procedure is reported, involving iterative reactive ion etching and mechanical polishing to create a suitable diamond surface for the deposition and patterning of thin film superconducting layers. Using this approach, diamond substrates with less than 300 pm Root Mean Square surface roughness are obtained.

• OSTI ID: 22258577
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 12 Vol. 104; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
DIAMONDS
ELECTRICAL PROPERTIES
ETCHING
IONS
MECHANICAL POLISHING
NANOSTRUCTURES
PHOTONS
SUPERCONDUCTING WIRES
SURFACES
THIN FILMS