Stimulated emission from ladder-type two-photon coherent atomic ensemble | Zendy

Jiho Park | Zendy; Han Seb Moon | Zendy

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Stimulated emission from ladder-type two-photon coherent atomic ensemble

Author(s) -

Jiho Park,

Han Seb Moon

Publication year - 2018

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.014461

Subject(s) - coherence (philosophical gambling strategy) , laser , physics , four wave mixing , photon , atomic physics , excited state , atomic coherence , resonance (particle physics) , optics , spontaneous emission , laser pumping , coupling (piping) , optoelectronics , nonlinear optics , materials science , quantum mechanics , metallurgy

We investigated the stimulated emission from a ladder-type two-photon coherent atomic ensemble, for the 5S 1/2 - 5P 3/2 - 5D 5/2 ransition of 87 Rb atoms. Under the ladder-type two-photon resonance condition obtained using pump and coupling lasers, we observed broad four-wave mixing (FWM) light stimulated from two-photon coherence induced by the seed laser coupled between the ground state of 5S 1/2 and the first excited state of 5P 3/2 . A dip in the FWM spectrum was obtained for three-photon resonance due to V-type two-photon coherence using the pump and seed lasers. From the FWM spectra obtained for varying frequency detuning and seed-laser power, we determined that the seed laser acts as a stimulator for FWM generation, but also acts as a disturber of FWM due to V-type two-photon coherence.

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