Vanadium dioxide-based broadband spin-decoupled metasurface for wavefront control and modulation

Qiu, Rui; Zhang, Guanmao; Zhang, Qian; Zhu, Jingci; Feng, Yinhai; Du, Shaokai; Liu, Jie; Bi, Kaiyun

doi:10.1016/j.optcom.2023.129399

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…From Fig. 5(d) [16] , it can be seen that a vortex beam [19] with [11] a topological charge [11] of 3 is produced at 83 . 14 Z  μm.…”

Section: Design Of Vortex Metasurface With Different Focal Length And...mentioning

confidence: 93%

Research on vortex lens based on full dielectric cross-shaped antenna

Lv,

Dang,

Luo

et al. 2023

AOPC 2023: Laser Technology and Applications; And Optoelectronic Devices and Integration

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“…From Fig. 5(d) [16] , it can be seen that a vortex beam [19] with [11] a topological charge [11] of 3 is produced at 83 . 14 Z  μm.…”

Section: Design Of Vortex Metasurface With Different Focal Length And...mentioning

confidence: 93%

Research on vortex lens based on full dielectric cross-shaped antenna

Lv,

Dang,

Luo

et al. 2023

AOPC 2023: Laser Technology and Applications; And Optoelectronic Devices and Integration

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“…[175][176][177][178][179][180] For polarization-sensitive metalens, the focal length of the metalens can be tuned by adjusting the orbital angular momentum of the incident light, or the tunability can be realized by altering the polarization state of incident light. [181][182][183] The phase change materials most utilized generally in the application of dynamic metalens made of materials sensitive to light or heat include chorionic phase change materials, [184,185] vanadium dioxide, [186,187] Ge 2 Sb 2 Se 4 Te (GSST), [188][189][190][191][192][193] graphene, [194] germanium antimony tellurium thin film, [195] water, [196] etc. Examples of representative work as shown in Figure 16 (b), Xu et al in 2021 used the Ge 2 Sb 2 Te 5 material in both its crystalline and amorphous states to designed tunable metalens.…”

Section: Expansion Of Imaging Versatilitymentioning

confidence: 99%

Metalens in Improving Imaging Quality: Advancements, Challenges, and Prospects for Future Display

Peng,

Zhang,

Zhou

et al. 2024

Laser & Photonics Reviews

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Metalens, a metasurface with a focusing phase, has been the focus of research due to its immense potential for use in imaging and display technology. Traditional lens and optical imaging systems rely on phase accumulation, however metalens with subwavelength structures provide a disruptive path for miniaturized optical imaging systems by allowing unfettered modulation of incident light's phase and amplitude. Recently, extensive efforts have been devoted to exploring new design strategies, new functionalities, and possible applications. This paper reviews the development, principle, classification, and research status of metalens. In particular, this review focuses on the progress and challenges of improving imaging quality and expanding imaging diversity, including improvements of resolution, enhancement of depth of field, extension of field of view, and achromatism. Lastly, the prospects of metalens in the future display are summarized, and the application potentials of metalens in novel 3D display, intelligent and bionic display, as well as nano‐pixelate light‐emitting display (NLED) are emphasized.

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“…The polyimide (the dielectric constant is 3.5) layer is t in thickness and is placed as the middle layer, and the thicknesses of the substrate layer and the top patterned layer are h 1 and h 2 . The SSRR demonstrates a classical kind of resonance [23]. The top patterned layer is composed of two SSRRs with two gaps, whose widths are d 1 ; the two SSRRs are of the same size, and the gaps are in opposite directions.…”

Section: Structure Of the Designed Unit Cellmentioning

confidence: 99%

A Terahertz Programmable Digital Metasurface Based on Vanadium Dioxide

Pan,

Liu,

Peng

et al. 2024

Photonics

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Metasurfaces can realize the flexible manipulation of electromagnetic waves, which have the advantages of a low profile and low loss. In particular, the coding metasurface can flexibly manipulate electromagnetic waves through controllable sequence encoding of the coding units to achieve different functions. In this paper, a three−layer active coding metasurface is designed based on vanadium dioxide (VO2), which has an excellent phase transition. For the designed unit cell, the top patterned layer is composed of two split square resonant rings (SSRRs), whose gaps are in opposite directions, and each SSRR is composed of gold and VO2. When VO2 changes from the dielectric state to the metal state, the resonant mode changes from microstrip resonance to LC resonance, correspondingly. According to the Pancharatnam−Berry (P−B) phase, the designed metasurface can actively control terahertz circularly polarized waves in the near field. The metasurface can manipulate the order of the generated orbital angular momentum (OAM) beams: when the dielectric VO2 changes to metal VO2, the order l of the OAM beams generated by the metasurface changes from −1 to −2, and the purity of the generated OAM beams is relatively high. It is expected to have important application values in terahertz wireless communication, radar, and other fields.

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Vanadium dioxide-based broadband spin-decoupled metasurface for wavefront control and modulation

Cited by 5 publications

References 30 publications

Research on vortex lens based on full dielectric cross-shaped antenna

Research on vortex lens based on full dielectric cross-shaped antenna

Metalens in Improving Imaging Quality: Advancements, Challenges, and Prospects for Future Display

A Terahertz Programmable Digital Metasurface Based on Vanadium Dioxide

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