TY - JOUR AU - Castelletto, Stefania AU - Degiovanni, Ivo AU - Migdall, Alan AU - Schettini, V C2 - Proc Quantum Communications and Quantum Imaging III Page SPIE DA - 2005-01-01 00:01:00 LA - en M1 - 5893 PB - Proc Quantum Communications and Quantum Imaging III Page SPIE PY - 2005 TI - Spatial and spectral mode selection of heralded single photons from Parametric Down-Conversion in bulk and PPLN, ed. by R.E. Myers and Y. Shih UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=104355 ER -