E. Kouddad‎, I. Yaichi, S. B. Chabani, H. Dahbi, and I. Hassani, “Design and Performance of an All-Optical Four-‎Channel Filter Based on Linear Photonic Crystals”, J Theor Appl phys, vol. 19, no. 6, Dec. 2025, doi: 10.57647/j.jtap.2025.1906.57.