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Superconducting nanowire single-photon detector in an optical cavity for front-side illumination
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10.1063/1.3263715
/content/aip/journal/apl/95/19/10.1063/1.3263715
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/19/10.1063/1.3263715
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Modeled spectral absorptance. Inset: optical cavity SNSPD layer structure. Nominal thicknesses are 45, 30, 4.5, 20, and 246 nm from top to bottom ( , HSQ, NbTiN, MgO, and in order).

Image of FIG. 2.
FIG. 2.

(a) Local reflectance/detection efficiency distribution measurement setup at 1550 nm and 3 K. PC: polarization controller. VA: variable attenuator. SPD: single-photon detector. (b) Optical micrograph of a fabricated round-shape device of diameter. AA: active area. (c) Measured spatial distribution of local reflected photon count rate in hertz. (d) Measured local detection efficiency distribution. (b)–(d) are presented in the same spatial scale.

Image of FIG. 3.
FIG. 3.

Spectral response of the optical cavity SNSPD. Solid circles are measurements and dashed curve is a calculation with the exponential factor as a fitting parameter.

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/content/aip/journal/apl/95/19/10.1063/1.3263715
2009-11-12
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Superconducting nanowire single-photon detector in an optical cavity for front-side illumination
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/19/10.1063/1.3263715
10.1063/1.3263715
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