title: Controlling multi-wave mixing signals via photonic band gap of electromagnetically induced absorption grating in atomic media.
abstract: We experimentally demonstrate dressed multi-wave mixing (MWM) and the reflection of the probe beam due to electromagnetically induced absorption (EIA) grating can coexist in a five-level atomic ensemble. The reflection is derived from the photonic band gap (PBG) of EIA grating, which is much broader than the PBG of EIT grating. Therefore, EIA-type PBG can reflect more energy from probe than EIT-type PBG does, which can effectively affect the MWM signal. The EIA-type as well as EIT-type PBG can be controlled by multiple parameters including the frequency detunings, propagation angles and powers of the involved light fields. Also, the EIA-type PBG by considering both the linear and third-order nonlinear refractive indices is also investigated. The theoretical analysis agrees well with the experimental results. This investigation has potential applications in all-optical communication and information processing.
authors: Yiqi
authors: Y
authors: Zhang
authors: Zhenkun
authors: Z
authors: Wu
authors: Xin
authors: X
authors: Yao
authors: Zhaoyang
authors: Z
authors: Zhang
authors: Haixia
authors: H
authors: Chen
authors: Huaibin
authors: H
authors: Zhang
authors: Yanpeng
authors: Y
authors: Zhang