Resonances of electromagnetically induced transparency and absorption in a light field of elliptically polarised waves

D. V. Kovalenko, M. Yu Basalaev, V. I. Yudin, A. V. Taichenachev

Research output: Contribution to journalArticlepeer-review

Abstract

Electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIA) resonances excited by a strong two-frequency field are considered for various values of the total angular momenta of the ground (Fg) and excited (Fe) states at a degenerated optical closed transition Fg → Fe. The light field is formed by two co-propagating waves with arbitrary elliptical polarisations. The process of spontaneous transfer of anisotropy from the excited state to the ground state is shown to determine the formation of the EIA resonance at the transition Fg = F → Fe = F + 1. The results obtained generalise the classification of transitions into 'bright' (Fg = F → Fe = F + 1) and 'dark' (Fg = F → Fe = F and Fg = F → Fe = F-1) transitions with respect to the direction of a subnatural resonance.

Original languageEnglish
Pages (from-to)571-575
Number of pages5
JournalQuantum Electronics
Volume50
Issue number6
DOIs
Publication statusPublished - 1 Jun 2020

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