Abstract

We address the antireflection (AR) properties of periodic surfaces, or metasurfaces, supporting substrate waves. The work is motivated by recent literature where AR bands formed by substrate-wave propagation are incorrectly attributed to Mie scattering. In contrast, as clearly shown here, substrate-wave generation with corresponding AR signatures is a diffractive effect due to a periodic lattice and is not due to particle scattering as in Mie resonance. Treating both 1D and 2D surfaces, we demonstrate a clear quantitative connection between major AR loci and corresponding total substrate transmittance loci via maps in period versus wavelength. As shown, this holds for fully dispersed, lossy surfaces as well. The results presented here serve to elucidate the physical properties of periodic metasurfaces placed on substrates admitting propagating diffraction orders and may inform the design and implementation of grating-based AR structures.

© 2022 Optica Publishing Group

Enhancement of third harmonic generation induced by surface lattice resonances in plasmonic metasurfaces

Jeetendra Gour, Sebastian Beer, Alessandro Alberucci, Uwe D. Zeitner, and Stefan Nolte
Opt. Lett. 47(22) 6025-6028 (2022)

Multifunctional all-dielectric metasurface quarter-wave plates for polarization conversion and wavefront shaping

Houjin He, Shiwei Tang, Ziwei Zheng, and Fei Ding
Opt. Lett. 47(10) 2478-2481 (2022)

Determining the laser-induced release probability of a nanoparticle from a soft substrate

Xuesong Gao, Chandu Byram, Jordan Adams, and Chenglong Zhao
Opt. Lett. 47(23) 6181-6184 (2022)

Optical Kerr nonlinearity of dielectric nanohole array metasurface in proximity to anapole state

Andrey V. Panov
Opt. Lett. 47(11) 2866-2869 (2022)

Angle-selective chiral absorption induced by diffractive coupling in metasurfaces

Jiaojun Meng, Zhenqing Zhang, Wenxing Liu, Yunhui Li, Yong Sun, Zhenquan Lai, and Tianbao Yu
Opt. Lett. 47(20) 5385-5388 (2022)