Effect of isotopic purification on spectral-hole narrowing in 167Er3+ hyperfine transitions. (29th March 2017)

• Record Type: Journal Article
• Authors: Tawara, Takehiko; Mariani, Giacomo; Shimizu, Kaoru; Omi, Hiroo; Adachi, Satoru; Gotoh, Hideki
• Is Part Of: Applied physics express. Volume 10:Number 4(2017)
• Publication Date: 2017-03-29
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/APEX.10.042801
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: We investigated spectral-hole narrowing in optical transitions between hyperfine sublevels in isotopically purified erbium ions ( 167 Er 3+ ). The homogeneous broadening Γh of the optical transition was measured in purified and non-purified Er 3+ -doped crystals via spectral-hole burning. The measured Γh in the purified 167 Er 3+ exhibited a significant reduction of the hole width because the fluctuation of the local magnetic field induced by the electron spins of the surrounding Er 3+ ions was eliminated. Because the narrowing of the Γh is equivalent to the prolongation of the coherence time, the isotopic purification is effective for the coherent manipulation of quantum states.