CHEN Wei, LIAO Sheng. Rigorous coupled-wave method for diffraction efficiency calculation of blazed gratings[J]. Journal of Applied Optics, 2009, 30(5): 734-738.
Citation: CHEN Wei, LIAO Sheng. Rigorous coupled-wave method for diffraction efficiency calculation of blazed gratings[J]. Journal of Applied Optics, 2009, 30(5): 734-738.

Rigorous coupled-wave method for diffraction efficiency calculation of blazed gratings

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  • A rigorous coupled-wave (RCW) method, which adopts scattering matrix to calculate the diffraction efficiency of blazed gratings, is proposed to point against the low-accuracy of general scalar approximate algorithm. The calculation of diffraction accuracy was fulfilled by establishing a thorough theoretical model of blazed gratings and solving each harmonic coefficient with scattering matrix. The method has been used for calculating the diffraction accuracy of both TE and TM modes and solving the problem caused by numerical instability. The scalar method based on Beckmann-equation is provided for comparison.
  • 1]MOHARAM M G, GAYLORD T K. Diffraction an-alysis of dielectric surface-relief gratings[J]. Opt.Soc.Am,1982,72(10):1385-1392.
    [2]MOHARAM M G, POMMET D A, GRANN E B, et al. Stable implementation of the rigorous coupled-wave analysis for surface-relief gratings: enhanced transmittance matrix approach[J]Opt.Soc.Am.A,1995,12(5):1077-1086.
    [3]LI Li-feng. Formulation and comparison of two re-cursive matrix algorithms for modeling layered diffraction gratings[J]. Opt.Soc.Am. A,1996,13(5):1024-1035.
    [4]COTTER N P K, PREIST T W, SAMBLES J R. Scattering-matrix approach to multilayer diffraction[J]. Opt.Soc.Am.A,1995,12(5):1097-1103.
    [5]GRANET G, GUIZAl B. Efficient implementation of the coupled-wave method for metallic lamellar gratings in TM polarization[J]. Opt.Soc.Am.A,1996,13(5):1019-1023.
    [6]PALIK E D. Handbook of optical constants in solids[M].New York:Academic Press, 1985.
    [7]BECKMANN P, SPIZZICHINO A. The scattering of electromagnetic waves from rough surfaces[M].Oxford :Pergamon Press, 1963.
    [8]MAYSTRE D.Rigorous vector theories of diffra-ction gratings[J]. Progress in Optics,1984,21:1-67.

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