Strong Coherent Light Amplification with Double Electromagnetically Induced Transparency Coherences

Abstract

We experimentally demonstrate coherent amplification of probe field in a tripod-type atoms driven by strong coupling, signal and weak probe fields. We suppress linear and nonlinear atomic absorptions for resonant and near resonant probe via double electromagnetically induced transparency (DEIT). Combining these advantages of suppressed absorption along with temperature- or atomic-density-controlled transfer of population(ToP) between hyperfine ground states, we can induce near-resonant amplification of probe through stimulated Raman scattering(SRS) pumped by low-intensity signal field. The increased population difference of initial and final states of SRS due to increased ToP rate, together with reduced absorption at the second EIT window in an optically thick Cesium vapor, gives rise to highly effective coherent amplification.

11 pages, 5 figures

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• A complete characterisation of the heralded noiseless amplification of photons

Cited by in corpus (5)

• Double-EIT Ground-State Cooling of Stationary Two-Dimensional Ion Lattices
• Surface-polaritonic phase singularities and multimode polaritonic frequency combs via dark rogue-wave excitation in hybrid plasmonic waveguide
• Interplay between electromagnetically induced transparency(EIT), absorption (EIA) and Autler-Townes (AT) splitting in N-type atomic system: An experiment and theory
• Phase Sensitive Amplification Enabled by Coherent Population Trapping
• Phase-locked bi-frequency Raman lasing in a double-$\Lambda$ system