1. J.C. Knight, T.A. Birks, P.St.J. Russell, D.M. Atkin, “All-silica single-mode optical fiber with photonic crystal cladding”, Opt. Lett. 21 (19) 1547 (1996).
2. F. Benabid and P.J. Roberts, “Linear and nonlinear optical properties of hollow core photonic crystal fiber”, Journal of Modern Optics, Vol. 58, No. 2, pp. 87–124 (2011).
3. J. C. Knight, T. A. Birks, P. St. J. Russell, and D. M. Atkin, “All silica single-mode photonic crystal fiber,” Opt. Lett., vol. 21, no. 19, pp. 1547–1549 (1996).
4. T. L. Wu and C. H. Chao, “A novel ultraflattened dispersion photonic crystal fiber,” IEEE Photon. Technol. Lett., vol. 17, no. 1, pp. 67–69 (2005).
5. https://www.comsol.co.in/comsol-multiphysics .