Full-color hologram using spatial multiplexing of dielectric metasurface

Zhao, Wenyu; Liu, Bingyi; Jiang, Huan; Song, Jie; Pei, Yanbo; Jiang, Yongyuan

doi:10.1364/ol.41.000147

Cited by 129 publications

(102 citation statements)

References 25 publications

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“…It should be noted that although most of the recent studies involving geometrical phase metasurfaces utilized metallic nano-structures, the same approach can be extended to dielectric structures for beam shaping [31,65] and for full color holography [30] and even to optically controlled materials such as linear photoalignment polymers and polymerizable liquid crystals [29]. This is yet another manifestation of the strength of the geometrical phase approach which does not rely on electronic/photonic resonances but rather on polarization manipulation.…”

Section: Geometrical Phase Metasurfacesmentioning

confidence: 99%

“…The ability of metasurfaces to provide high-resolution control over the phase profile of optical beam, render them very attractive for many applications but in particular for holography and beam shaping [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. Indeed, studies on metasurfaces-based holography and beam shaping (primarily at mid and far IR) begun emerging more than a decade ago [11,12,31] where recent studies utilizing metallic and dielectric nano-structure demonstrated devices for short-IR and visible [5,20].…”

Section: Introductionmentioning

confidence: 99%

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Metasurfaces-based holography and beam shaping: engineering the phase profile of light

Scheuer

2016

Nanophotonics

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Abstract:The ability to engineer and shape the phase profile of optical beams is in the heart of any optical element. Be it a simple lens or a sophisticated holographic element, the functionality of such components is dictated by their spatial phase response. In contrast to conventional optical components which rely on thickness variation to induce a phase profile, metasurfaces facilitate the realization of arbitrary phase distributions using large arrays with subwavelength and ultrathin (tens of nanometers) features. Such components can be easily realized using a single lithographic step and is highly suited for patterning a variety of substrates, including nonplanar and soft surfaces. In this article, we review the recent developments, potential, and opportunities of metasurfaces applications. We focus primarily on flat optical devices, holography, and beam-shaping applications as these are the key ingredients needed for the development of a new generation of optical devices which could find widespread applications in photonics.

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Section: Geometrical Phase Metasurfacesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metasurfaces-based holography and beam shaping: engineering the phase profile of light

Scheuer

2016

Nanophotonics

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“…Spatial multiplexing has been used for enhancing the number of operation wavelengths3334 or adding new functionalities to optical devices35. Here we show multiwavelength metasurface lenses based on spatial multiplexing with two different approaches: large scale aperture division and meta-atom interleaving.…”

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confidence: 95%

Multiwavelength metasurfaces through spatial multiplexing

Arbabi

Kamali

et al. 2016

Sci Rep

171

144

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Metasurfaces are two-dimensional arrangements of optical scatterers rationally arranged to control optical wavefronts. Despite the significant advances made in wavefront engineering through metasurfaces, most of these devices are designed for and operate at a single wavelength. Here we show that spatial multiplexing schemes can be applied to increase the number of operation wavelengths. We use a high contrast dielectric transmittarray platform with amorphous silicon nano-posts to demonstrate polarization insensitive metasurface lenses with a numerical aperture of 0.46, that focus light at 915 and 1550 nm to the same focal distance. We investigate two different methods, one based on large scale segmentation and one on meta-atom interleaving, and compare their performances. An important feature of this method is its simple generalization to adding more wavelengths or new functionalities to a device. Therefore, it provides a relatively straightforward method for achieving multi-functional and multiwavelength metasurface devices.

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“…[32] Recently, multicolor holograms have been demonstrated with metal-insulator-metal gap plasmonic structures, [19] metallic slits, [33] and rotated dielectric nanobars. [34,35] This paper introduces monocrystalline silver grown on a transparent substrate as a material platform for plasmonic metasurfaces. As a demonstration, in this paper, we experimentally realize holograms in transmission mode.…”

Section: Introductionmentioning

confidence: 99%

Pancharatnam–Berry Phase Manipulating Metasurface for Visible Color Hologram Based on Low Loss Silver Thin Film

Choudhury

Guler

Shaltout

et al. 2017

Advanced Optical Materials

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construction. Alternative materials such as transition metal nitrides and complex oxide such as transparent conducting oxides [16] have been also introduced for various plasmonic applications. For alternative material platforms, the primary focus is on low loss, tunability, fabrication compatibility for integrated platforms and high temperature applications. [17] Most reported alternative materials are dielectric or very weakly plasmonic in the blue region of the visible spectrum. [18] For visible frequencies metasurfaces, plasmonic noble metals, such as aluminum [19,20] and silver, [21] have been utilized so far. Noble metals, such as gold and silver, have inherent loss limitations for fully realizing the potentials of plasmonics. [22] While making thin films or nanostructures with silver, the grain-boundaries introduce additional loss in the material [23] and therefore, the full potential of the plasmonic noble metals cannot be utilized. Aluminum is lossy compared to silver in the visible spectrum. On the other hand, dielectric metasurfaces have been introduced with increased efficiency for optical metasurface applications, [24] but with thicknesses much larger than the optical wavelength in the corresponding material.To prepare subwavelength optical elements for visible wavelengths operation, silver is the most suitable elemental material. Silver films grown on transparent substrates are typically polycrystalline. The grain boundaries in the film give rise to additional optical losses, which prohibits the full potential of silver as a plasmonic material from being realized. Silver films, free from grain boundaries, can significantly reduce the losses incurred in polycrystalline films and can therefore reduce the losses. In this paper, we use low loss ultrasmooth epitaxial silver films as the material platform to generate hologram. It has been demonstrated previously that silver (001) can be grown epitaxially on MgO (001) substrate with the help of epitaxial TiN layer. [25] Demonstrated silver films show lowest loss for silver grown on transparent substrate. Monochromatic holograms have been created at subwavelength scale using extreme light confinement of resonant plasmonic structures, such as V-antennas, [26] nanorods, [27] nanopillars, [28] and subwavelength gratings. [29] Principally, the combination of the three basic element colors, red, green, and blue, can be utilized to make a color image. Most plasmonic metals are dielectric or less plasmonic in the blue region. It is therefore difficult to produce a blue color component for multicolor holograms using a plasmonic metasurface. Color holograms have been generated This study demonstrates visible color hologram using a plasmonic metasurface. The metasurface is fabricated by perforating nanoslits in a 50 nm thick monocrystalline silver film that is ultrasmooth and has ultralow loss compared to conventional polycrystalline silver films commonly used in plasmonics. The designed plasmonic hologram is the thinnest metasurface hologram operating in transmission...

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Full-color hologram using spatial multiplexing of dielectric metasurface

Cited by 129 publications

References 25 publications

Metasurfaces-based holography and beam shaping: engineering the phase profile of light

Metasurfaces-based holography and beam shaping: engineering the phase profile of light

Multiwavelength metasurfaces through spatial multiplexing

Pancharatnam–Berry Phase Manipulating Metasurface for Visible Color Hologram Based on Low Loss Silver Thin Film

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