Enhancement of photon antibunching-interference of two light beams after two-photon absorption

A. Bandilla, H.‐H. Ritze

雅斗 小芦

A. Bandilla, H.‐H. Ritze

Abstract Inspired by results of interfering signal and idler from a nondegenerate parametric amplifier we investigate the photon statistics of the resulting field after interference of two components subjected to double‐mode two‐photon absorption. This absorption process leads to a strong correlation of the participating modes, which can be used to generate fields with photon antibunching in interference experiments. In addition the photon number can be made small, which produces enhanced antibunching.

Masato Koashi, Masaya Matsuoka, Takuya Hirano

A different way of producing antibunched light was experimentally demonstrated in which the production process is difficult to understand by a naive photon picture. A degenerate beam of down-converted photon pairs from a nonlinear crystal pumped by pulsed light was mixed with coherent local oscillator pulses by a beam splitter, and the intensity autocorrelation of one of the output beams was measured. It showed two-photon interference fringes as the phase difference of the two input fields was varied, and showed antibunching when the interference was destructive. \textcopyright{} 1996 The American Physical Society.

M. W. Hamilton

Suhui Yang, Dong Wang, Xu-Zhen Guo +2 more