title: Highly asymmetric near infrared light transmission in an all-dielectric grating-on-mirror photonic structure.
abstract: We demonstrate a photonic structure, composed of a dielectric quarter-wavelength stack topped with a transmission phase grating, designed to exhibit a significant asymmetry in the near infrared light transmission for waves propagating in opposite directions. The asymmetry, defined as the difference between the intensity transmission coefficients, reaches 0.72 ± 0.06 for a single wavelength and exceeds 0.2 over a spectral range spanning from 700 to 850 nm for one incident polarization and 750-800 nm for both polarizations. The experimental results are consistent with the numerical model of light propagation in the structure.
authors.forename: Łukasz
authors.initials: Ł
authors.lastname: Zinkiewicz
authors.forename: Jakub
authors.initials: J
authors.lastname: Haberko
authors.forename: Piotr
authors.initials: P
authors.lastname: Wasylczyk