Reprogrammable Digital Holograms and Multibit Spatial Energy Modulation Using a Reflective Metasurface

Feng, Rui; Ratni, Badreddine; Yi, Jianjia; Zhang, Hailin; Lustrac, André de; Burokur, Shah Nawaz

doi:10.1021/acsaelm.1c00786

Cited by 9 publications

(6 citation statements)

References 36 publications

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“…Several dynamic materials, e.g. active components, [33][34][35][36]64,65] liquid crystals, [37] heat-shrinkable shape memory polymer, [38] phase change materials, [39,40] and microfluidic, [41][42][43] provide possibilities for achieving reconfigurability via the construction of reconfigurable meta-atoms. The reconfigurable meta-atom alters its own physical properties through specific triggering conditions, thus realizing the dynamic manipulation of EM waves.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the adjustment of U meta (x, y) is mostly reported in uniform polarization distribution holography. [33][34][35][36][37][38][39][40][41][42][43] The U input (x, y) provides tunability in the SoP and phase profile of the incident wavefront. [44][45][46][47] Modern optical systems are composed of light sources, lenses, detectors, phase masks, and spatial light modulators (SLMs), and thus VMH reconfigurability is furnished with possibilities.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the adjustment of U meta ( x , y ) is mostly reported in uniform polarization distribution holography. [ 33–43 ]…”

Section: Introductionmentioning

confidence: 99%

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3D Reconfigurable Vectorial Holography via a Dual‐Layer Hybrid Metasurface Device

Wang,

Pang,

2023

Laser & Photonics Reviews

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Metasurface‐based vectorial holography manifests itself as an advanced platform for large‐capacity information storage, holographic display, and cryptography. However, a convenient and effective reconfigurable vectorial hologram generation mechanism still remains a challenge. Here, a rotation‐driven reconfigurable vectorial holography scheme is developed via a dual‐layer hybrid metasurface device, in which radiation‐type and birefringent metasurfaces are cascaded hybridly. Thus, reconfigurable and highly customizable intensity and polarization response of holograms in the 3D space is achieved. Rotatable radiation‐type metasurface (RTM) serves as an incidence‐wavefront modulator to excite the non‐rotatable birefringent metasurface (BM). The gradient descent optimization inverse design method is introduced to achieve the high‐efficiency reconstruction of the Jones vector and Jones matrix distribution on both RTM and BM. On this basis, numerical analysis and experimental verification of 3‐D reconfigurable vectorial holography are demonstrated in the microwave region. This scheme implies a new paradigm for 3‐D reconfigurable vectorial holography and can lead to advances in high‐capacity optical display, switchable meta‐devices, and cryptography.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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3D Reconfigurable Vectorial Holography via a Dual‐Layer Hybrid Metasurface Device

Wang,

Pang,

2023

Laser & Photonics Reviews

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“…In view of these intrinsic characteristics, numerous applications of metasurfaces have been reported, such as perfect lens, [7] anomalous reflection, [8,9] camouflaging, [10,11] vortex beam, [12,13] and hologram. [13][14][15][16][17][18][19][20][21][22][23][24][25] Compared to traditional hologram technologies, metasurface-based holograms present advantages of high spatial resolution, low noise, high precision, to name a few. [26,27] In the past few years, reconfigurable metasurface holography, [28][29][30] asymmetric transport metasurface holography, [31] broadband metasurface holography, [32] and multiplexed metasurfaces holography [33][34][35] have flourished.…”

Section: Introductionmentioning

confidence: 99%

Full‐Space Double‐Layer Patterned 2‐Bit Coding Metasurface Hologram

Dong

Zhu

et al. 2022

Annalen der Physik

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Metasurfaces play an important role in holographic imaging to flexibly manipulate and control electromagnetic wave fronts. However, metasurface-based holograms present weaknesses in space utilization and efficiency. In this work, a 2-bit coding metasurface based on double-face copper-cladded patterns on a single-layer substrate is proposed, where the electromagnetic waves can be independently manipulated in full space. When illuminated by an x-polarized wave, the co-polarized reflection and cross-polarized transmission components of the coding metasurface can be simultaneously manipulated at two distinct frequencies. The co-polarized reflection efficiency is greater than 0.7 at 15 GHz, and the cross-polarized transmission efficiency attains to 0.4 at 14 GHz. The proposed coding metasurface hologram can simultaneously reconstruct two different holographic images without changing the polarization state of the incident wave, while avoiding crosstalk between different channels. A coding metasurface sample is fabricated and measured, and the experimental results agree well with the numerically simulated ones. The proposed hologram imaging concept highlights great potential applications in the fields of holographic display and information encryption.

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“…Metasurface holography relies on the accurate modulation of electromagnetic waves within a tailored two-dimensional structure to generate high-quality imaging [22][23][24][25][26][27][28][29][30][31][32][33]. The properties and functions of the constituting meta-atoms that can control phase and amplitude and other properties play decisive roles for the metasurfaces' performance.…”

Section: Introductionmentioning

confidence: 99%

Amplitude-phase modulation metasurface hologram with inverse angular spectrum diffraction theory

Su¹,

Wang²,

Shang³

et al. 2022

J. Phys. D: Appl. Phys.

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Metasurface, composed of designed two-dimensional array of meta-atoms, provides an alternative approach to achieve efficient electromagnetic wave manipulation. Metasurface holography is an emerging and promising imaging technology with improved image quality and spatial resolution compared to traditional holography. Many devices are fabricated only by coding specific phase responses of the designed metasurfaces. However, the modulation of both the amplitude and phase responses of electromagnetic waves can significantly improve the quality of the holographic image. In this paper, we employ bi-layered split rings as meta-atoms, which can fully control the transmission amplitude and phase independently. Furthermore, we present an algorithm based on the inverse angular spectrum diffraction theory to obtain the amplitude and phase information for the shape and arrangement of the meta-atoms. The proof-of-concept experiments in the microwave regime demonstrate that the inverse angular spectrum diffraction theory shows better image quality than the conventional Gerchberg-Saxton (GS) algorithm, especially when the number of meta-atoms is the same or even slightly fewer. The proposed approach provides an innovative and effective method for holograms design and expands the route to versatile applications related to holographic technologies.

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Reprogrammable Digital Holograms and Multibit Spatial Energy Modulation Using a Reflective Metasurface

Cited by 9 publications

References 36 publications

3D Reconfigurable Vectorial Holography via a Dual‐Layer Hybrid Metasurface Device

3D Reconfigurable Vectorial Holography via a Dual‐Layer Hybrid Metasurface Device

Full‐Space Double‐Layer Patterned 2‐Bit Coding Metasurface Hologram

Amplitude-phase modulation metasurface hologram with inverse angular spectrum diffraction theory

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