Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-27T02:30:34.953Z Has data issue: false hasContentIssue false
  • English
  • Français

Materials Development for High Efficiency Superconducting Nanowire Single-Photon Detectors

Published online by Cambridge University Press:  01 June 2015

A.E. Lita ,
V.B. Verma ,
R. D. Horansky ,
J.M. Shainline ,
R.P. Mirin  and
S. Nam
A.E. Lita
Affiliation:
National Institute of Standards and Technology (NIST), Boulder, CO 80305, U.S.A.
V.B. Verma
Affiliation:
National Institute of Standards and Technology (NIST), Boulder, CO 80305, U.S.A.
R. D. Horansky
Affiliation:
National Institute of Standards and Technology (NIST), Boulder, CO 80305, U.S.A.
J.M. Shainline
Affiliation:
National Institute of Standards and Technology (NIST), Boulder, CO 80305, U.S.A.
R.P. Mirin
Affiliation:
National Institute of Standards and Technology (NIST), Boulder, CO 80305, U.S.A.
S. Nam
Affiliation:
National Institute of Standards and Technology (NIST), Boulder, CO 80305, U.S.A.
Get access

Abstract

Superconducting nanowire single-photon detectors (SNSPDs) based on ultra-thin films have become the preferred technology for applications that require high efficiency single-photon detectors with high speed, high timing resolution, and low dark count rates at near-infrared wavelengths. Since demonstration of the first SNSPD using NbN thin films, an increasingly larger number of materials are being explored. We investigate amorphous thin film alloys of MoSi, MoGe, and WRe with the goal of optimizing SNSPDs for higher operating temperature, high efficiency and high speed. To explore material adequacy for SNSPDs, we have measured superconducting transition temperature (Tc) as a function of film thickness and sheet resistance, as well as critical current densities. In this paper we present our results comparing these materials to WSi, another amorphous material widely used for SNSPD devices.

Keywords

amorphousdevicesnanoscale
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1807: Symposium VV – Science and Technology of Superconducting Materials , 2015 , pp. 1 - 6
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Gol'tsman, G. N., Okunev, O., Chulkova, G., Lipatov, A., Semenov, A., Smirnov, K., Voronov, B., Dzardanov, A., Williams, C. and Sobolewski, R., Appl. Phys. Lett. 79, 705–707 (2001).CrossRefGoogle Scholar
Marsili, F., Verma, V.B., Stern, J.A., Harrington, S., Lita, A.E., Gerrits, T., Vayshenker, I., Baek, B., Shaw, M.D., Mirin, R.P. and Nam, S., Nature Phot. 7, 210–214 (2013).CrossRefGoogle Scholar
Verma, V.B., Lita, A.E., Vissers, M.R., Marsili, F., Pappas, D.P., Mirinand, R.P. Nam, S., Appl. Phys. Lett. 105, 022602 (2014).CrossRefGoogle Scholar
Materials parameters: for NbN: Matthias, V.B.C.B.T. et.al. Rev.Mod.Phys., 35, 1 (1963), Marsili, F. et.al., Opt. Express 16, 3191(2008), Antonova, A. et.al. Sov.Phys. JETP 53, 1270 (1981); for WSi: Kondo, S, J. Mater. Res., 7, 853 (1992), [2]; for MoSi: Smith, A.W., Phys. Rev. B 49, 12927 (1994), Yu P Korneeva, et. al., Supercond. Sci. Technol. 27, 095012 (2014); for MoGe: Bezryadin, A., Superconductivity in Nanowires: Fabrication and Quantum Transport (2013); for WRe: present work.Google Scholar
Ivry, Y. , Kim, C., Dane, A.E., Fazio, D., McCaughan, A.N., Sunter, K.A., Zhao, Q., and Berggren, K.K., Phys. Rev. B 90, 214515 (2014).CrossRefGoogle Scholar
Il’in, K., Rall, D., Siegel, M., Engel, A., Schilling, A., Semenov, A., Huebers, H.-W., Physica C 470, 953–956 (2010).CrossRefGoogle Scholar
Marsili, F. et al. . Hotspot relaxation dynamics in a current-carrying superconductor. submitted .Google Scholar