title: Design of highly transparent glasses with broadband antireflective subwavelength structures.
abstract: We present a design optimization of highly transparent glasses with broadband antireflective subwavelength structures (SWS) based on the theoretical calculation using a rigorous coupled wave analysis method. It is found that optical transmission characteristics of SWS integrated glasses are governed mainly by the zero-order condition considering multiple internal reflections but not external reflection. By utilizing parabola-shaped SWS on both sides of the glasses with a period of 200 nm and a height of 200 nm, an average transmittance of 99.58% is achieved over a whole range of visible wavelength. Transmission band shrinkage effects of the SWS integrated glass are also observed with increasing the incident angle of light.
authors.affiliation: Department of Information and Communications, Gwangju Institute of Science and Technology, 1 Oryong-dong, Buk-gu, Gwangju 500-712, Republic of Korea.
authors.forename: Young Min
authors.initials: YM
authors.lastname: Song
authors.forename: Hee Ju
authors.initials: HJ
authors.lastname: Choi
authors.forename: Jae Su
authors.initials: JS
authors.lastname: Yu
authors.forename: Yong Tak
authors.initials: YT
authors.lastname: Lee