List of Articles Refractive Index Open Access Article Abstract Page Full-Text 1 - Investigation and Comparison of Light Propagation in Two Graded Photonic Crystal Structures Abdolrasoul Gharaati Nasrin Miri Zahra Zareian 20.1001.1.24237361.2017.2.1.6.0 Open Access Article Abstract Page Full-Text 2 - Studying Focusing Properties of Graded Index Photonic Crystals Made of Material with Different Refractive Index Nasrin Miri Abdolrasoul Gharaati 20.1001.1.24237361.2017.2.3.6.4 Open Access Article Abstract Page Full-Text 3 - Investigation of the Third-Order Nonlinear Optical Susceptibilities and Nonlinear Refractive Index In Pbs/Cdse/Cds Spherical Quantum Dot Fatemeh Rahmani Javad Hasanzadeh 20.1001.1.24237361.2018.3.1.6.7 Open Access Article Abstract Page Full-Text 4 - Optical Density Tuning through Refractive Index Contrast in Periodic and Quasi-Periodic 1D Photonic Crystals Hadi Rahimi https://doi.org/10.71577/jopn.2025.1189313 Open Access Article Abstract Page Full-Text 5 - Design of Directional Coupler Structure in Electro-Optic Integrated Circuit Using Refractive Index Sensor Based on Silicon Nitride Substrate Sina Tahanazadeh Sharifeh Shahi Atefeh Salimi Shahraki https://doi.org/10.71577/jopn.2025.1198268