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A WKB interpolation-Wavelet method for 3-D Numerical simulation of nanoscale FinFET Photodetector including quantum mechanical effects

R. RAMESH1, M. MADHESWARAN2, K. KANNAN3

Affiliation

  1. Department of Electronics and Communication Engineering, M.A.M College of Engineering, Trichy – 621 105, TamilNadu, India
  2. Center for Advanced Research, Muthayammal Engineering College, Rasipuram, TamilNadu, India
  3. Department of Mathematics, SASTRA University, Thanjavur, TamilNadu, India

Abstract

In this paper, a three dimensional numerical modeling of an optically controlled nanoscale FinFET considering quantum mechanical effects has been theoretically examined and analyzed. The device characteristics are obtained from the selfconsistent solution of 3D Poisson-Schrödinger equation using WKB (Wentzel Kramers Brilloin) interpolation-Wavelet method. This method provides more accurate results by dynamically adjusting the computational mesh and scales the CPU time linearly with the number of mesh points using oscillating interpolation derived from WKB asymptotics, hence reducing the numerical cost. The results obtained for dark and illuminated conditions are used to examine the performance of the device for its suitable use as a photodetector..

Keywords

Nanoscale FinFET photodetector, Quantum mechanical effects, WKB-Wavelet, Schrödinger equation.

Submitted at: March 1, 2010
Accepted at: May 26, 2010

Citation

R. RAMESH, M. MADHESWARAN, K. KANNAN, A WKB interpolation-Wavelet method for 3-D Numerical simulation of nanoscale FinFET Photodetector including quantum mechanical effects, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 5, pp. 980-993 (2010)