- Optics Letters, Vol. 37, Issue 4, pp. 470-472 (February 2012)
- P. S. Salter, A. Jesacher, J. B. Spring, B. J. Metcalf, N. Thomas-Peter, R. D. Simmonds, N. K. Langford, I. A. Walmsley, M. J. Booth
- Optics Letters, Vol. 37, Issue 4, pp. 551-553 (February 2012)
- Yang Yue, Hao Huang, Lin Zhang, Jian Wang, Jeng-Yuan Yang, Omer F. Yilmaz, Jacob S. Levy, Michal Lipson, Alan E. Willner
- Optics Express, Vol. 20, Issue 3, pp. 2640-2648 (January 2012)
- Xiaoguang Tu, Junfeng Song, Tsung-Yang Liow, Mi Kyoung Park, Jessie Quah Yiying, Jack Sheng Kee, Mingbin Yu, Guo-Qiang Lo