PT Unknown AU Gol'tsman, G Korneev, A Minaeva, O Antipov, A Divochiy, A Kaurova, N Voronov, B Pan, D Cross, A Pearlman, A Komissarov, I Slysz, W Sobolewski, R TI Middle-infrared to visible-light ultrafast superconducting single-photon detector SE Proc. ASC PY 2006 PI Seattle ER