QUANTUM TECHNOLOGIES : Photon echo of an ultranarrow optical transition of 167Er3+ in 7LiYF4 crystals. (29th September 2017)

• Record Type: Journal Article
• Authors: Minnegaliev, M M; Baibekov, E I; Gerasimov, K I; Moiseev, S A; Smirnov, M A; Urmancheev, R V
• Is Part Of: Quantum electronics. Volume 47:Number 9(2017)
• Page Start: 778
• Page End: 782
• Publication Date: 2017-09-29
• Subjects: Quantum electronics -- Periodicals; 537.5
• DOI: 10.1070/QEL16470
• Languages: English
• ISSNs: 1063-7818

Abstract

Abstract: The longitudinal and transverse relaxation times for a transition between hyperfine sublevels of the lower electronic states of the 4 I15/2 and 4 I9/2 multiplets of 167 Er 3+ ions in 7 LiYF4 crystals have been determined for the first time using two-pulse and stimulated photon echo measurements in zero magnetic field at a temperature of 4 K. The decay of the photon echo signal has been shown to be modulated, which is tentatively attributed to the superhyperfine interaction of the 167 Er 3+ ions with their 19 F - nearest neighbours. The contributions of various types of interaction to the ultranarrow linewidth (∼24 MHz) of the transition in question are discussed. Our results demonstrate that this optical transition of the 167 Er 3+ ion in 7 LiYF4 crystals is potentially attractive for use in Raman quantum memory schemes.