List of Articles Vahid Fallahi Article 1 - Design of an Improved Optical Filter Based on Dual-Curved PCRR for WDM Systems 20.1001.1.24237361.2017.2.4.4.4 Vahid Fallahi Mahmood Seifouri Journal of Optoelectronical Nanostructures , Issue 7 , Year , Winter 2017 Article 2 - Novel Four-Channel All Optical Demultiplexer Based on Square PhCRR for Using WDM Applications 20.1001.1.24237361.2018.3.4.5.2 Vahid Fallahi Mahmood Seifouri Journal of Optoelectronical Nanostructures , Issue 11 , Year , Winter 2018 Article 3 - Novel structure of optical add/drop filters and multi-channel filter based on photonic crystal for using in optical telecommunication devices 20.1001.1.24237361.2019.4.2.5.5 Vahid Fallahi Mahmood Seifouri Journal of Optoelectronical Nanostructures , Issue 13 , Year , Summer 2019