TY - JOUR AU - Stefania Castelletto AU - Ivo Degiovanni AU - V Schettini AU - Alan Migdall C2 - Optics Express DA - 2005-09-01 00:09:00 LA - en M1 - 13 No 18 PB - Optics Express PY - 2005 TI - Spatial and Spectral Mode Selection of Heralded Single Photons From Pulsed Parametric Down Conversion UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=840964 ER -