Electromagnetically induced grating in a three-level Ξ-type system driven by a strong standing wave pump and weak probe fields

Abstract

We have analysed the properties of an electromagnetically induced grating formed in a Ξ-type three-level atomic system in the presence of a standing wave pump and travelling wave probe fields at resonant and off-resonant two-photon absorption. We have also shown the validity of this grating in an inhomogeneously broadened regime.

Electromagnetically induced grating based on the giant Kerr nonlinearity controlled by spontaneously generated coherence

“…The n th-order diffraction intensity is determined by Eq. (8), and sin θ nλ p ∕Λ. Since we will mainly be interested in the first-order diffraction, the first-order diffraction intensity is gained as…”

“…Originally, EIT systems were always set in the traveling-wave (TW) pattern to establish spatially homogeneous quantum coherence. Recently, the standing wave (SW) driving the system has been well adopted to modulate periodically atomic coherence in space, which is advantageous for both the generation of photonic band gaps (PBGs) [3][4][5][6] and the creation of electromagnetically induced grating (EIG) [7][8][9][10][11]. The EIT technique is utilized to achieve many applications, such as light propagation control [12][13][14][15], enhancement of resonant optical nonlinearity [16][17][18], and state transfer between light and atoms [19][20][21], just to mention a few.…”

Coherent manipulation of the Raman-induced gratings in atomic media

“…These structures are also referred to as electromagnetically induced absorption gratings (EIAG) [14] or electromagnetically induced gratings [15]. Many researchers have been focused on the study of EIAG [14][15][16][17][18][19][20][21][22][23], that are based on EIT, with their potential applications in mind. EIAG may be utilized for diffracting and switching a probe field, and probing the optical properties of materials.…”

Theoretical investigation of electromagnetically induced phase grating in RF-driven cascade-type atomic systems

“…The great attention to EIG is due to its potential applications in significant fields such as all-optical switching and routing [2], probing material optical properties [4], atomic/molecular velocimetry [5], light storage [6,7], optical bistability realization [8], beam splitting and fanning [9], shaping a biphoton spectrum [10], developing novel photonic devices in semiconductor QW systems [11], and controlling multi-wave mixing signals via photonic band gap of electromagnetically induced absorption grating in atomic media [12]. It is shown that the intensity of higher-order diffractions could be enhanced in a three-level ladder type system [13]. The phase grating efficiency was also improved by using a microwave field in a doubledark-state atomic system [14].…”