List of Articles PWE Open Access Article Abstract Page Full-Text 1 - Design of an All- Optic Communication Filter Based on Photonic Crystal Structure Majid Malekian Hossein Emami Mohsen Ashourian Open Access Article Abstract Page Full-Text 2 - High Resolution Nano Temperature Sensor Based on Two-Dimensional Photonic Crystal Pardis Kazemi Esfeh Zahra Alaei Open Access Article Abstract Page Full-Text 3 - Study on biology and distribution of biocontrol agents of the knapweed Acroptilon repens L. in South Khorasan and introduction of Metzneria paucipunctella (Zeller, 1839) (Lep.: Gelechiidae) for Iran B. Khalil Tahmasbi S. Moodi Gh. Zamani GH. Assadi M. T. Alebrahim Open Access Article Abstract Page Full-Text 4 - The feasibility of the application of Russian knapweed (Acroptilon repens) extract as a biological herbicide for controlling some weeds in wheat and potato crop Mohammadtaghi Ale Ebrahim Peyman Jafarzad Saeid Khamari Afshar Azadbakht Open Access Article Abstract Page Full-Text 5 - Design of an Improved Optical Filter Based on Dual-Curved PCRR for WDM Systems Vahid Fallahi Mahmood Seifouri Open Access Article Abstract Page Full-Text 6 - Novel Four-Channel All Optical Demultiplexer Based on Square PhCRR for Using WDM Applications Vahid Fallahi Mahmood Seifouri Open Access Article Abstract Page Full-Text 7 - Novel structure of optical add/drop filters and multi-channel filter based on photonic crystal for using in optical telecommunication devices Vahid Fallahi Mahmood Seifouri