[3] N. Huntemann, C. Sanner, B. Lipphardt, Chr Tamm, E. Peik. Phys. Rev. Lett., 116, 063001(2016).
[13] G. J. Dick, J. D. Prestage, C. A. Greenhall, L. Maleki, 487(1990).
[15] Y. Li, Y. Lin, Q. Wang, T. Yang, Z. Sun, E. Zang, Z. Fang. Chin. Opt. Lett., 16, 051402(2018).
[22] L. Jin, Y. Jiang, Y. Yao, H. Yu, Z. Bi, L. Ma. Opt. Express, 26, 18699(2018).
[23] W. Yan, Y. Yao, Y. Sun, H. W. Chad, Y. Jiang, L. Ma. Chin. Opt. Lett., 17, 040201(2019).
[24] L. Ma, P. Jungner, J. Ye, J. L. Hall. Opt. Lett., 19, 1777(1994).
[25] W. Nagourney, J. Sandberg, H. Dehmelt. Phys. Rev. Lett., 56, 2797(1986).