title: Shaping biphoton temporal waveforms with modulated classical fields.
abstract: We experimentally demonstrate a technique for shaping the temporal quantum waveform of narrow-band biphotons generated in a cold atomic ensemble via four-wave mixing by periodically modulating the two input classical lasers. We show that it is possible to generate nonclassical paired photons with a predesigned shape of the correlation function.
authors.affiliation: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: J F
authors.initials: JF
authors.lastname: Chen
authors.forename: Shanchao
authors.initials: S
authors.lastname: Zhang
authors.forename: Hui
authors.initials: H
authors.lastname: Yan
authors.forename: M M T
authors.initials: MM
authors.lastname: Loy
authors.forename: G K L
authors.initials: GK
authors.lastname: Wong
authors.forename: Shengwang
authors.initials: S
authors.lastname: Du