Analysis of terahertz wave reflection by an array of double dielectric elements placed on a reflective substrate

Analysis of terahertz wave nonlinear reflection by an array of double silicon elements placed on a metal substrate

“…If there is a need to view a more complete picture of the set of resonances, you can refer to the paper [3]. In this paper, the first seven resonances lowest in the frequency were studied in details including the resonant field distribution inside the unit cell of a structure very similar to the metasurface being under our investigation here to reveal the origin of each resonance.…”

“…A metasurface response manifests in reflectivity, absorption, radiation when using laser media, in electromagnetic field boundary values, which may be the same as on a surface of an artificial magnetic wall, and in confining of the intensive electromagnetic field inside the structure. Wavelength resonant selectivity of metasurface reflection is important in applications related to highly sensitive detection [1,2,3], in particular, of biological materials.…”

Reverse resonant nonspecular reflection controlled by intensity of light

“…Metasurfaces open prospects to create specific reflectors with extraordinary properties [2]. The wavelength-selective properties of mirrors are necessary to design precise sensors [3,4,5], in particular, biological material sensors [6]. Another aspect of the application of resonant mirrors involves placement of a certain quantum system which can have different energy states in an intense field near the reflecting surface.…”

Non-specular reflection by a planar resonant metasurface

“…The excellent wavelength-selective properties of specifically functionalized metamaterial mirrors are necessary to design precise sensors [8,9,10], in particular, biological material sensors [11]. Another aspect of the application of resonant mirrors involves the placement of a certain quantum system which can have different energy states, in an intense field near the reflecting surface.…”