TY - JOUR T1 - Effect of changing the thickness and width of a transmission grating in varying the phase of transmitted waves TT - بررسی اثر تغییر ضخامت و عرض سطح مقطع عناصر آرایه نانو سیم درتغییر فاز میدان انتقالی JF - opsi JO - opsi VL - 21 IS - 0 UR - http://opsi.ir/article-1-569-en.html Y1 - 2015 SP - 1261 EP - 1264 KW - grating KW - nano wires KW - phase pattern KW - plasmonics N2 - In this paper we analyze the effect of changing the geometrical parameters of a transmission grating in changing the phase of the outgoing waves. The numerical study is based on the Finite Element Method (FEM) in frequencies from 95THz to 215 THz. Lastly we show that with a proper selection of the width and changing the thickness of wires we can reach up to 110 degree phase difference between the incoming and transmitted waves. M3 ER -