Synthetic five-wave mixing in an integrated microcavity for visible-telecom entanglement generation.

ABSTRACT: Nonlinear optics processes lie at the heart of photonics and quantum optics for their indispensable role in light sources and information processing. During the past decades, the three- and four-wave mixing (χ⁽²⁾ and χ⁽³⁾) effects have been extensively studied, especially in the micro-/nano-structures by which the photon-photon interaction strength is greatly enhanced. So far, the high-order nonlinearity beyond the χ⁽³⁾ has rarely been studied in dielectric materials due to their weak intrinsic nonlinear susceptibility, even in high-quality microcavities. Here, an effective five-wave mixing process (χ⁽⁴⁾) is synthesized by incorporating χ⁽²⁾ and χ⁽³⁾ processes in a single microcavity. The coherence of the synthetic χ⁽⁴⁾

SUBMITTER: Wang JQ 

PROVIDER: S-EPMC9585089 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature