Realizing Colorful Holographic Mimicry by Metasurfaces

Abstract

Mimicry is more complicated and difficult, which requires the animal to mimic another object, usually even another species, to protect itself from predators. [7] Recently, researchers have found that the complex crypsis behavior in chameleons originates from the active mechanical

Tunable metasurfaces towards versatile metalenses and metaholograms: a review

“…10,11 Resonant effects such as plasmonic resonance, [12][13][14][15] Mie resonance, 16,17 and Fabry-Pérot resonance 18,19 have also been exploited. By exploiting these resources, optical elements can be highly miniaturized and various optical applications have been implemented, such as beam splitters, [20][21][22] absorbers, [23][24][25][26][27][28][29] metalenses, 30,31 metaholograms, [32][33][34][35][36][37][38][39][40] selective thermal emitters, [41][42][43] detecting devices, [44][45][46] and structural color. [47][48][49][50][51][52] The functionality and efficiency of metasurfaces have been continuously increased by improving the methods to design meta-atoms, and the development of their material composition.…”

Pushing the Limits of Functionality‐Multiplexing Capability in Metasurface Design Based on Statistical Machine Learning

“…[ 11 ] In addition, the large flexibility in metasurface design offers unique ability to control light for multipurposed tasks that are usually inaccessible based on natural materials, yielding prescribed optical responses to different combinations of light characteristics such as the frequency, phase, angle of incidence, and polarization. [ 12–20 ]…”

“…[11] In addition, the large flexibility in metasurface design offers unique ability to control light for multipurposed tasks that are usually inaccessible based on natural materials, yielding prescribed optical responses to different combinations of light characteristics such as the frequency, phase, angle of incidence, and polarization. [12][13][14][15][16][17][18][19][20] The exotic optical properties of metasurfaces originate from the engineered light-structure interactions. The conventional design approach heavily relies on template-based parameter sweep via numerical simulations to find eligible meta-atom structures, which could be facilitated by physical principles such as plasmonic resonance, [21] Mie theory, [22] or Pancharatnam-Berry (PB) phase for circular polarized light.…”

Rotational Multiplexing Method Based on Cascaded Metasurface Holography

“…[ 1–4 ] The powerful versatility and great design flexibility of metasurfaces stem from the large variety of possible geometric shapes, structural sizes, spatial orientation angles, combination modes, and wavefront modulation mechanisms. Owing to their unique abilities to modulate the arbitrary phase, amplitude, polarization, wavelength, and orbital angular momentum of light, metasurfaces produce various special optical effects, which lead to a multitude of potential applications such as holography, [ 5–8 ] color printing, [ 9–11 ] beam shaping, [ 12 ] edge detection, [ 13 ] generation and measurement of polarization, [ 14,15 ] generation and manipulation of THz waves, [ 16 ] and optical encryption and anticounterfeiting. [ 17,18 ]…”