%0 Journal Article
%T Efficiently coupling light to superconducting nanowire single-photon detectors
%A Xiaolong Hu
%A Holzwarth, C. W.
%A Masciarelli, D.
%A Dauler, E. A.
%A Berggren, K. K.
%J IEEE Trans. Appl. Supercond.
%D 2009
%V 19
%N 3
%F XiaolongHu_etal2009
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=647), last updated on Sun, 22 May 2016 15:53:17 -0500
%X We designed superconducting nanowire single-photon detectors (SNSPDs) integrated with silver optical antennae for free-space coupling and a dielectric waveguide for fiber coupling. According to our finite-element simulation, (1) for the free-space coupling, the absorptance of the NbN nanowire for TM-polarized photons at the wavelength of 1550 nm can be as high as 96% by adding silver optical antennae; (2) for the fiber coupling, the absorptance of the NbN nanowire for TE-like-polarized photons can reach 76% including coupling efficiency at the wavelength of 1550 nm by adding a silicon nitride waveguide and an inverse-taper coupler.
%K optical antennas
%K SNSPD
%P 336-340