Abstract
This paper is described for T-matrix analysis of the electromagnetic wave diffraction from a Fourier grating that the boundary value problem is treated by applying the extended boundary condition. The rigorous form of the expression of matrix elements is presented in the term of Bessel functions of the first kind. The error of power conservation versus the truncated number has been examined for mode number. Diffraction efficiencies versus groove depth and wavelength for a second or third harmonic wave of Fourier grating have been discussed. Numerical results are in good agreement with those obtained from other method and experimental values. Reasonable numerical results are presented for a groove depth per period of the Fourier grating less than 0.25.
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Ohki, M., Sakurai, H. & Kozaki, S. T-matrix analysis of electromagnetic wave differaction from a Fourier grating. Int J Infrared Milli Waves 18, 2031–2045 (1997). https://doi.org/10.1007/BF02678361
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DOI: https://doi.org/10.1007/BF02678361