The effects of finite beams and finite gratings on the performance of guided-mode resonant subwavelength gratings are characterized by using the rigorous boundary element method. The gratings are strongly modulated, have a finite number of periods, and are illuminated by normally incident Gaussian beams. Quantitative results are presented for silicon-on-sapphire resonant gratings and gallium arsenide–aluminum arsenide resonant gratings.
© 2001 Optical Society of America
(050.1970) Diffraction and gratings : Diffractive optics
(050.2770) Diffraction and gratings : Gratings
(260.1960) Physical optics : Diffraction theory
(260.2110) Physical optics : Electromagnetic optics
Jon M. Bendickson, Elias N. Glytsis, Thomas K. Gaylord, and David L. Brundrett, "Guided-mode resonant subwavelength gratings: effects of finite beams and finite gratings," J. Opt. Soc. Am. A 18, 1912-1928 (2001)