TY - JOUR JF - opsi JO - ICOP & ICPET _ INPC _ ICOFS VL - 20 IS - 0 PY - 2014 Y1 - 2014/1/01 TI - Simulation of Electron Density Distribution Effect on the Reflection of the Terahertz Wave from Hot Unmagnetized Plasma Slab by FDTD Method TT - شبیه سازی اثر توزیع‌ چگالی الکترونی بربازتاب موج تراهرتز از یک لایه پلاسمای داغ غیرمغناطیده با روش FDTD N2 - Abstract- In this paper the propagation of terahertz pulse in a hot unmagnetized plasma slab is studied. In interaction of the electromagnetic waves, the plasma acts as a dielectric medium. Transmission, reflection and absorption of terahertz wave in a plasma slab is simulated with one-dimensional Finite Difference Time Domain method and using the plasma dielectric constant established based on a hot plasma dispersion relation. The problem is investigated by considering the sheath and space-varying parameters of bounded plasma. The results show that the different electron density profiles affect on shape and amplitude of the reflected wave. SP - 1597 EP - 1600 AU - ashoor, morteza AU - niknam, alireza AD - Shahid beheshti university KW - FDTD method KW - bounded hot unmagnetized plasma KW - terahertz waves. UR - http://opsi.ir/article-1-64-en.html ER -