High-Efficiency Spin-Related Vortex Metalenses

Wang, Wei; Zhao, Ruikang; Chang, Shilong; Li, Jiaqian; Shi, Yan; Liu, Xiangmin; Sun, Jinghua; Kang, Qianlong; Guo, Kai; Guo, Zhongyi

doi:10.3390/nano11061485

Cited by 23 publications

(9 citation statements)

References 50 publications

(51 reference statements)

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“…Thus, metasurfaces have been proposed to control the phase and wavefront of light field, and various kinds of the metasurface elements including metalens [11][12][13], metasurface hologram [14,15], beam deflector [16,17], vortex generator [18][19][20] and vector light generator [21][22][23] have been advanced. The designed metasurface elements based on different working modes have different optical performance.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Metalenses Based on Three Kinds of Phase Compensation Techniques

Zhou

Mou

et al. 2021

Nanomaterials

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The phase delays introduced by anisotropic nanounits include propagation phase delay, resonant phase delay and geometric phase delay. Various phase devices can be formed based on the metasurfaces consisting of anisotropic nanounits and the phase devices of the same kind function have different performances because of different working modes. In this paper, metalenses and vortex metalenses are chosen as examples to compare the optical performance of metasurface phase devices based on three kinds of phase compensation techniques. We design separately three kinds of metalenses and vortex metalenses using the cross nanoholes, L-shaped nanohole and V-shaped nanoholes and simulate numerically their intensity and phase distributions. Additionally, the results show the differences among these elements in structure complexity, polarization dependence, working efficiency and phase uniformity. The comparison for three kinds of metalenses clearly shows the merits of different phase compensation techniques and this work must be helpful for expanding the practical applications of metasurfaces.

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Section: Introductionmentioning

confidence: 99%

Performance Analysis of Metalenses Based on Three Kinds of Phase Compensation Techniques

Zhou

Mou

et al. 2021

Nanomaterials

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“…Designing and arranging meta-atoms elaborately, the metadevice has the ability to generate arbitrary, spin-dependent, and multidimensional FOVs under LCP and RCP incidence. Therefore, the phase profiles of metasurface are governed by [42]:…”

Section: Generation Of Multidimensional Fovsmentioning

confidence: 99%

“…Xu et al produced two types of polarization-dependent metasurfaces and successfully presented the terahertz cylinder vector beam and vector Bessel beam [41]. Wang et al numerically studied high-efficiency spin-related vortex metalenses at the mid-infrared band through engineering both the propagation phase and PB phase subtly [42]. Based on arranging the geometric parameters of all-dielectric meta-atoms, Liu et al gained stable and high-quality perfect Poincaré beams using spin-multiplexed metasurface for visible light [43].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Study on Generation of Multidimensional Focused and Vector Vortex Beams via All-Dielectric Spin-Multiplexed Metasurface

et al. 2022

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The optical vortex (OV) beams characterized by orbital angular momentum (OAM) possess ubiquitous applications in optical communication and nanoparticle manipulation. Particularly, the vortex vector beams are important in classical physics and quantum sciences. Here, based on an all-dielectric transmission metasurface platform, we demonstrate a spin-multiplexed metadevice combining propagation phase and Pancharatnam–Berry (PB) phase. By utilizing a phase-only modulation method, the metadevice can generate spin-dependent and multidimensional focused optical vortex (FOV) under the orthogonally circularly polarized incident light, and it can successfully realize the multiplexed of the above-mentioned FOVs for linearly polarized light. Meanwhile, the superposition of multiple OAM states can also produce vector vortex beams with different modes. Additionally, the evolution process of the electric field intensity profile is presented after the resultant vector vortex beams through a horizontal linear polarization. This work paves an innovative way for generating structured beams, and it provides promising opportunities for advanced applications in optical data storage, optical micromanipulation, and data communication.

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“…There are two ways to achieve beam steering with metasurfaces. The first one is by applying an external electric field to control the material properties of the metasurfaces and manipulate the wavefront [42][43][44][45][46] (named as normal meta-OPA), as shown in Figure 6a. In 2021, Ai et al [42] designed a metasurface structure consisting of graphene ribbons, a dielectric spacer, and metal substrate.…”

Section: Meta-opamentioning

confidence: 99%

All-Solid-State Beam Steering via Integrated Optical Phased Array Technology

2022

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Light detection and ranging (LiDAR), combining traditional radar technology with modern laser technology, has much potential for applications in navigation, mapping, and so on. Benefiting from the superior performance, an all-solid-state beam steering realized by integrated optical phased array (OPA) is one of the key components in the LiDAR system. In this review, we first introduce the basic principle of OPA for beam steering. Then, we briefly review the detailed advances of different solutions such as micro-electromechanical system OPA, liquid crystal OPA, and metasurface OPA, where our main focus was on the recent progress of OPA in photonic integrated chips. Finally, we summarize the different solutions and discuss the challenges and perspectives of all-solid-state beam steering for LiDAR.

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High-Efficiency Spin-Related Vortex Metalenses

Cited by 23 publications

References 50 publications

Performance Analysis of Metalenses Based on Three Kinds of Phase Compensation Techniques

Performance Analysis of Metalenses Based on Three Kinds of Phase Compensation Techniques

Theoretical Study on Generation of Multidimensional Focused and Vector Vortex Beams via All-Dielectric Spin-Multiplexed Metasurface

All-Solid-State Beam Steering via Integrated Optical Phased Array Technology

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