[1] G. Brambilla, F. Xu, P. Horak, Y. Jung, F. Koizumi, N. P. Sessions, E. Koukharenko, X. Feng, G. S. Murugan, J. S. Wilkinson, and D. J. Richardson, Adv. Opt. Photon. 1, 107 (2009).
[2] L. Tong, R. R. Gattass, J. B. Ashcom, S. He, J. Lou, M. Shen, I. Maxwell, and E. Mazur, Nature 426, 816 (2003).
[3] G. Brambilla, V. Finazzi, and D. J. Richardson, Opt. Express 12, 2258 (2004).
[4] L. Tong, L. Hu, J. Zhang, J. Qiu, Q. Yang, J. Lou, Y. Shen, J. He, and Z. Ye, Opt. Express 14, 82 (2006).
[5] A. M. Clohessy, N. Healy, D. F. Murphy, and C. D. Hussey, Electron. Lett. 41, 954 (2005).
[6] G. Brambilla, F. Xu, and X. Feng, Electron. Lett. 42, 517 (2006).
[7] J. Bures and R. Ghosh, J. Opt. Soc. Am. A 16, 1992 (1999).
[8] K. Huang, S. Yang, and L. Tong, Appl. Opt. 46, 1429 (2007).
[9] G. Vienne, P. Grelu, X. Pan, Y. Li, and L. Tong, J. Opt. A: Pure Appl. Opt. 10, 025303 (2008).
[10] G. Vienne, Y. Li, L. Tong, and P. Grelu, Opt. Lett. 33, 1500 (2008).
[11] S. Leon-Saval, T. Birks, W. Wadsworth, P. St. J. Russell, and M. Mason, Opt. Express 12, 2864 (2004).
[12] M. A. Foster, A. C. Turner, M. Lipson, and A. L. Gaeta, Opt. Express 16, 1300 (2008).
[13] X. Jiang, L. Tong, G. Vienne, X. Guo, A. Tsao, Q. Yang, and D. Yang, Appl. Phys. Lett. 88, 223501 (2006).
[14] L. Tong, J. Lou, R. R. Gattass, S. He, X. Chen, L. Liu, and E. Mazur, Nano Lett. 5, 259 (2005).
[15] Y. Li and L. Tong, Opt. Lett. 33, 303 (2008).
[16] Y. Wu, Y.-J. Rao, Y.-H. Chen, and Y. Gong, Opt. Express 17, 18142 (2009).
[17] G. Vienne, Y. Li, and L. Tong, IEICE Trans. Electron. E90-C, 415 (2007).
[18] F. Xu and G. Brambilla, Opt. Lett. 32, 2164 (2007).
[19] G. Vienne, Y. Li, and L. Tong, IEEE Photon. Technol. Lett. 19, 1386 (2007).
[20] S. D. Gedney, IEEE Trans. Antennas Propag. 44, 1630 (1996).
[21] MgF2 optical properties can be found at the Refractive Index Database http://refractiveindex.info.22. "Highly fluorine doped rods" Products information of Heraeus: http://specialty-fiber.heraeus-quarzglas.com/en/products/fluosilrods/fluosil rods 38913.aspx (Aug. 17,2009).
[22] M. Sumetsky, Y. Dulashko, and M. Fishteyn, in OSA Technical Digest Series (CD) of Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference PDP46 (2007).
