PT Journal AU Anant, V Kerman, AJ Dauler, EA Yang, JKW Rosfjord, KiM Berggren, KK TI Optical properties of superconducting nanowire single-photon detectors SO Optics Express JI Opt. Express PY 2008 BP 10750 VL 16 IS 14 DI 10.1364/OE.16.010750 ER