TY - JOUR AU - Ma, Lijun AU - Slattery, Oliver AU - Tang, Xiao C2 - Laser Physics DA - 2010-05-27 LA - en M1 - 20 PB - Laser Physics PY - 2010 TI - Single Photon Level Spectrum Measurement at Fiber Communication Band Using Frequency Up-conversion Technology UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=905086 ER -