Abstract
We compare the atomic coherence time of doped ion crystals, i.e., BiPO4: Eu3+, YPO4: Eu3+, YPO4: Pr3+, and Y2SiO5: Pr3 + crystals. Such atomic coherence time is controlled by crystal field splitting (CF-splitting) and optical (photon and phonon) dressing. Compared with the other doped ion crystals, BiPO4: Eu3+ exhibits the longest coherence time. By controlling thermal phonon, phase-transition phonon, broadband or narrowband excitation, and fluorescence (FL) or spontaneous four-wave-mixing ratio (S-FWM), a superior atomic coherence time of up to 10 ± 0.6 ms is achieved in the pure hexagonal (0.5:1) phase of BiPO4: Eu3+. Furthermore, the relationship between TAT-splitting and spectral Autler–Townes (SAT)-splitting was investigated. This superior atomic coherence time has potential applications in quantum memory devices.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Faizan Raza, Huanrong Fan, Habib Ullah, Faisal Nadeem, Hasnain Ali, Jinyang Li, and Yanpeng Zhang
Opt. Lett. 45(1) 240-243 (2020)
Abubakkar Khan, Faizan Raza, Irfan Ahmed, Siqiang Zhang, Changbiao Li, Al Imran, and Yanpeng Zhang
OSA Continuum 2(3) 786-796 (2019)
Feng Wen, Imran Ali, Abdulkhaleq Hasan, Changbiao Li, Haijun Tang, Yufei Zhang, and Yanpeng Zhang
Opt. Lett. 40(20) 4599-4602 (2015)