Strain Multiplexed Metasurface Holograms on a Stretchable Substrate

Malek, Stephanie C.; Ee, Ho Seok; Agarwal, Ritesh

doi:10.1021/acs.nanolett.7b00807

Cited by 251 publications

(195 citation statements)

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Section: Single-color Metahologramsmentioning

confidence: 99%

“…[37] Relative to linear metaholograms, the nonlinear metaholograms that function in the nonlinear regimes remove background noise at the fundamental frequency and provide additional multiplexing channels. [197] A coding-metasurface-based reprogrammable metahologram was recently exploited; the digital state of each coding unit cell could be switched by electrically controlling the loaded diodes, resulting in different target holographic images that were realized by a single coding metasurface in real time. [197] A coding-metasurface-based reprogrammable metahologram was recently exploited; the digital state of each coding unit cell could be switched by electrically controlling the loaded diodes, resulting in different target holographic images that were realized by a single coding metasurface in real time.…”

Section: Wwwadvopticalmatdementioning

confidence: 99%

“…[238] As a multiplexer, beams without OAM can be transferred into coaxial beams carrying various OAM features using various incident angles; as a demultiplexer, coaxial beams carrying multi-OAMs can be divided into various directions with fundamental modes. [188,189,[192][193][194][195]197,202,203] [239] Polarization-controlled optical metadevices have been developed based on harmonic-response metasurfaces as well, such as a polarization splitting and focusing metamirror that can simultaneously split orthogonal light polarizations and focus them into different focal spots, as shown in Figure 9h.…”

Section: Harmonic-response Metasurfacesmentioning

confidence: 99%

Section: Single-color Metahologramsmentioning

confidence: 99%

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Phase Manipulation of Electromagnetic Waves with Metasurfaces and Its Applications in Nanophotonics

Chen

Zhang

et al. 2018

Advanced Optical Materials

127

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elements. Thus, realizing phase manipulation of EM waves at the nanoscale has become a key pursuit for the development of modern optics and nanophotonics.Metamaterials are 3D artificial nanostructures composed of periodic subwavelength unit cells that resonantly couple to the incident EM waves, exhibiting effective electric and magnetic responses not found in nature. [1][2][3] However, these promising potential applications are hindered in their applications due to the challenges of fabricating the required complex 3D nanostructures and the inherent metallic losses and strong dispersion of plasmonic elements at optical frequencies. Planar metamaterials, or so-called metasurfaces, can be fabricated using existing technologies, such as the lithography method and have attracted increasing attention due to their feasibility, low loss, and ease of fabrication. [4,5] The most prominent advantage of metasurfaces is that they can generate spatial phase discontinuities over the full 2π range with an optically thin interface; moreover, the resolution is less than one wavelength. Thus, wavefronts can be shaped with a distance of much less than the wavelength. With the increasing development of metasurfaces, the aforementioned limitations can be solved using various ultrathin optical devices, which have properties superior to their conventional counterparts. [6][7][8][9][10][11][12] Here, we concentrate on the new capabilities of metasurfaces in recent years in manipulating the phase and propagation behaviors of EM waves. In Section 2, we briefly introduce the underlying mechanisms of three types of phase discontinuities. In Section 3, we review the basic applications of phase modulation using metasurfaces. In Section 4, we review more complex and advanced information photonics that have emerged from metasurfaces. In the last section, we provide concluding remarks and an outlook on future development directions. Three Basic Types of Phase Discontinuities Generated by Metasurfaces Resonance PhaseThe pioneering approach to achieve phase discontinuities was to use the dispersion of various metallic nanoantennas, as shown in the left panel of Figure 1a. The optical energy is coupled to surface EM waves propagating back and forth along the antenna surface. Due to the localized surface plasmon resonance, these waves are accompanied by oscillating free electrons Relative to conventional phase-modulation optical elements, metasurfaces (i.e., 2D versions of metamaterials) have shown novel optical phenomena and promising functionalities with more compact platforms and more straightforward fabrication processes. With the ability to generate a spatial phase variation, optical wavefronts can be manipulated into arbitrary shapes at will, enabling new phenomena and integrated ultrathin optical devices to be explored. This review is focused on recent developments regarding phase manipulation of electromagnetic waves with metasurfaces. Starting from their underlying physics for realizing full 2π phase manipulation, an overview of the applica...

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Section: Single-color Metahologramsmentioning

confidence: 99%

Section: Wwwadvopticalmatdementioning

confidence: 99%

Section: Harmonic-response Metasurfacesmentioning

confidence: 99%

Section: Single-color Metahologramsmentioning

confidence: 99%

See 2 more Smart Citations

Phase Manipulation of Electromagnetic Waves with Metasurfaces and Its Applications in Nanophotonics

Chen

Zhang

et al. 2018

Advanced Optical Materials

127

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“…The photosensitive medium haves the possibility to record three or more holograms and for switching between them. The medium is polydimethyloxane with gold nanorods [70]. Using of these surfaces can make the possibility of decreasing errors of an eye's aberrations.…”

Section: Holographic Approach For the Creating Of Intraocular Lensesmentioning

confidence: 99%

Methods for creation of diffractive intraocular lenses

Gornostay¹

2017

Collection of Selected Papers of the III International Conference on Information Technology and Nanotechnology

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Hybrid intraocular lenses (IOLs) are diffractive-refractive lenses with pseudoaccomodation. They can imitate the optical system of health eye more precisely, than other types. These lenses have 2-3 or more stable focuses. I proposed a comparison of hybrid IOLs: their shape, their processing, their aberrations and diffractive efficiency. I showed a review of new methods for correction of chromatism and I proposed a method of using volume holograms. I discussed features of possible materials.

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