Complete amplitude and phase control of light using broadband holographic metasurfaces

Lee, Gun‐Yeal; Yoon, Gwanho; Lee, Seung‐Yeol; Yun, Hansik; Cho, Jaebum; Lee, Kyookeun; Kim, Hwi; Rho, Junsuk; Lee, Byoungho

doi:10.1039/c7nr07154j

Cited by 353 publications

(246 citation statements)

References 50 publications

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“…This full and broadband complex‐amplitude modulation successfully provides vivid complex‐amplitude modulated holograms without any noise in the entire visible region, as shown in Figure E. Compared to the phase‐only holograms, this hologram achieves a signal‐to‐noise ratio (SNR) of 211, which is much higher than the SNR of 50 for phase‐only metasurface holography . Another advantage of complete complex‐amplitude modulation is elimination of the limited zone in designing computer generated holograms.…”

Section: Metasurface Holographymentioning

confidence: 91%

“…This means that some distances from the wavefront plane (ie, the metasurface plane) should be provided, as the allowed space for holography is limited. However, complex‐amplitude modulation enables the holography to transcend the Fraunhofer condition so that even images can be reconstructed just above the metasurface plane, as shown in “S” images represented in Figure E .…”

Section: Metasurface Holographymentioning

confidence: 99%

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Recent advances in metasurface hologram technologies (Invited paper)

2019

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Since Leith and Upatnieks demonstrated the first optical hologram in 1964, hologram technology has attracted a great deal of interest in a wide range of optical fields owing to its potential use in future optical applications such as holographic imaging and optical data storage. Although there have been considerable efforts to develop holographic technologies using conventional optics, critical issues still hinder future development. Recently, metasurfaces composed of artificially fabricated subwavelength structures have been considered as novel holographic devices that show an unprecedented ability to control electromagnetic waves. In this review, we outline the recent progress in metasurface holography. A general introduction to several types of metasurface holography categorized based on their physics and application is provided. Then, our personal perspective on the future of this field is discussed.

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Section: Metasurface Holographymentioning

confidence: 91%

Section: Metasurface Holographymentioning

confidence: 99%

Recent advances in metasurface hologram technologies (Invited paper)

2019

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“…This method is made possible by using a new structure, controlling the properties of incident light, or using a reflection space as modulating range with transmission space [21,[52][53][54][55][56][57][58][59]. The phase control via PB phase is well known to have a broadband characteristic [21,29,51]. However, if the resonant characteristic is added to the meta-atom for addition of auxiliary functionality or subsidiary information, the broadband operation becomes impossible [19,52,54].…”

Section: Metasurface Holography With More-than-one Informationmentioning

confidence: 99%

“…Notably, light manipulation through meta-atom has surpassed the conventional optic components in terms of their compactness as well as their performances [8,17]. Mostly, this nature has been utilized in abrupt phase discontinuities, generation of desired surface wave, sweeping polarization states with intensity, and creation of desired dispersive properties [18][19][20][21][22][23][24][25][26][27][28]. The metasurfaces first were exploited a lot for the desired wavefront control for the substitution of optic components with high-performance and ultrathin counterparts, such as hologram generation, lensing, and beam router [6,[29][30][31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Progresses in the practical metasurface for holography and lens

Sung

Lee

2019

Nanophotonics

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Metasurfaces have received enormous attention thanks to their unique ability to modulate electromagnetic properties of light in various frequency regimes. Recently, exploiting its fabrication ease and modulation strength, unprecedented and unique controlling of light that surpasses conventional optical devices has been suggested and studied a lot. Here, in this paper, we discuss some parts of this trend including holography, imaging application, dispersion control, and multiplexing, mostly operating for optical frequency regime. Finally, we will outlook the future of the devices with recent applications of these metasurfaces.

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“…

the generation of Airy beams, it is highly desirable to locally control the amplitude and phase of the output beam simultaneously so as to satisfy the polynary amplitude and binary phase distributions. [15][16][17] Inspired by the flexibility of introducing complex field distributions, [18] various Airy beam generators, either for free-space light, [19][20][21][22][23][24][25] or surface plasmons, [20,[26][27][28][29][30] have been proposed and demonstrated based on metasurfaces. Recent studies have demonstrated that, manipulating the amplitude and phase simultaneously and independently leads to new wavefront manipulation effects and applications.

…”

mentioning

confidence: 99%

Broadband Generation of Airy Beams with Hyperbolic Metamaterials

Hao

Yin

et al. 2019

Advanced Optical Materials

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the generation of Airy beams, it is highly desirable to locally control the amplitude and phase of the output beam simultaneously so as to satisfy the polynary amplitude and binary phase distributions. Traditional methods to generate an Airy beam usually require a complex and bulky optical system, such as a Fourier transform (FT) lens and a spatial light modulator, [3,6] or an FT lens and an FT plane, [7] which is against a high-density optical integration on a chip.Metamaterials and their 2D versions, metasurfaces, have provided an unprecedented approach to locally manipulate the phase, [10,11] amplitude, [12,13] and/ or polarization [14] of the electromagnetic (EM) waves. Recent studies have demonstrated that, manipulating the amplitude and phase simultaneously and independently leads to new wavefront manipulation effects and applications. [15][16][17] Inspired by the flexibility of introducing complex field distributions, [18] various Airy beam generators, either for free-space light, [19][20][21][22][23][24][25] or surface plasmons, [20,[26][27][28][29][30] have been proposed and demonstrated based on metasurfaces. Different from the metasurface lenses or holograms that merely require phase modulation, controlling both the amplitude and phase simultaneously is highly required to generate high-quality Airy beams that are capable of keeping good nondiffracting nature and stable full width half-maximum (FWHM) during propagation. [23] Typically, wavelength-scale engineered gratings, [26,29] graded nanocavity array, [27,28] and nanoslit resonators [20,30] are widely used to generate plasmonic Airy plasmons. In parallel with the above advances, free-space Airy beams, have been successfully realized by using dielectric nanofins, [21] metal nanorods, [23] and C-shaped apertures. [19,22,24,25] All these meta-atoms provide us with a robust tool to control the wave front of output beams appreciably across a resonance, and hence can be utilized to generate Airy beams. Since the building blocks of these metasurfaces are typically some resonant structures so that the amplitude and phase cannot be kept to satisfy an Airy function at frequencies out of the resonance frequency, such schemes thus exhibit limited working bandwidths around the resonance frequency. While promising steps have been taken to broaden the working bandwidth with proper design of C-aperture metasurface, and the working bandwidth of the Airy beams can be somewhat expanded around the resonance frequency, [22,24] the transmission efficiencies are typically lowThe Airy beam has attracted considerable research interest owing to the intriguing diffraction-free, self-accelerating, and self-healing properties, and hence has found numerous applications in photonics. Metasurfaces provide a compact method to generate Airy beams, but the available Airy beam generators suffer from the issue of narrow bandwidth since they typically rely on resonance principles. Here, hyperbolic metamaterials (HMMs) are proposed to address this issue by taking advantage of the broadba...

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Complete amplitude and phase control of light using broadband holographic metasurfaces

Cited by 353 publications

References 50 publications

Recent advances in metasurface hologram technologies (Invited paper)

Recent advances in metasurface hologram technologies (Invited paper)

Progresses in the practical metasurface for holography and lens

Broadband Generation of Airy Beams with Hyperbolic Metamaterials

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