An antireflective periodic structure different from the moth-eye structure is proposed in a resonance domain whose period is greater than the wavelength of incident light. Using rigorous coupled-wave analysis in the TE mode, a reflectivity of less than 0.2% is performed in a period larger than the wavelength, when an aspect ratio is unity. Changes in diffraction efficiency and transmissivity are small at different wavelengths. This is explained by a newly derived equation based on the vector theory.
© 2007 Optical Society of America
Diffraction and Gratings
Original Manuscript: March 29, 2006
Revised Manuscript: September 20, 2006
Manuscript Accepted: October 3, 2006
Published: January 25, 2007
Tetsuya Hoshino, Masahide Itoh, and Toyohiko Yatagai, "Antireflective grating in the resonance domain for displays," Appl. Opt. 46, 648-656 (2007)