Chromatic Dispersion Manipulation Based on Metalenses

Zang, Wenbo; Yuan, Quan; Chen, Run; Li, Lin; Li, Tianyue; Zou, Xiujuan; Zheng, Gaige; Chen, Zhuo; Wang, Shuming; Wang, Zhenlin; Zhu, Shining

doi:10.1002/adma.201904935

Cited by 66 publications

(27 citation statements)

References 111 publications

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“…Similar dispersion characteristics are observed for reflective metalenses designed for 441, 532 and 633 nm as well, as shown in Figure 6 d–f, whereas the dispersion effect is weaker for these wavelengths compared to the case of 193 nm. Generally speaking, although dispersion behavior (chromatism) exists for our present reflective metalens design, which can be eliminated by adapting achromatic metalens design [ 46 , 47 ], the reflective metalens based on the combination of SiO 2 nanopillars and Al film proves to work from the VUV to the visible wavelength range. Considering the potential of material property of SiO 2 and Al (see Figure 1 ), the SiO 2 + Al platform can be in principle extended to the mid-IR wavelength range, where one only needs to optimize the metalens design for the corresponding wavelength.…”

Section: Reflective Metalens Devicementioning

confidence: 99%

Design of Polarization-Independent Reflective Metalens in the Ultraviolet–Visible Wavelength Region

et al. 2021

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Flat lens or metalens, as one of the most important application branches of metasurfaces, has recently been attracting significant research interest. Various reflective and transmissive metalenses have been demonstrated in the terathertz, infrared and visible wavelength range. However, metalens operating in the ultraviolet (UV) wavelength range is rare. Moreover, the development of reflective UV metalens, the important counterpart of transmissive ones, falls far behind. In this work, with thorough investigation of material properties, we propose a reflective metalens based on silicon dioxide (SiO2) and aluminum (Al) that operates in the vacuum ultraviolet (VUV) to visible wavelength region. Four reflective metalenses were designed and optimized for wavelengths of 193, 441, 532 and 633 nm, and prominent focusing capability was observed, especially for the VUV wavelength of 193 nm. Dispersion characteristics of the metalenses were also studied within ±50 nm of the design wavelength, and negative dispersion was found for all cases. In addition, the SiO2 + Al platform can be, in principle, extended to the mid-infrared (IR) wavelength range. The reflective VUV metalens proposed in this work is expected to propel miniaturization and integration of UV optics.

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Section: Reflective Metalens Devicementioning

confidence: 99%

Design of Polarization-Independent Reflective Metalens in the Ultraviolet–Visible Wavelength Region

et al. 2021

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“…Chromatic and monochromatic aberrations are one of the main hurdles that MS-based lens technology needs to overcome in order to render such lenses applicative for a broad range of applications, particularly imaging. More details on the approaches for overcoming this problem can be found in recent review papers. , …”

Section: Potential Applications Of Metasurfacesmentioning

confidence: 99%

“…More details on the approaches for overcoming this problem can be found in recent review papers. 268,269 Holograms and Wavefront Shaping. Although metalenses also fall into the category of wavefront shaping, they constitute an extremely important application that deserves a separate consideration.…”

Section: ■ Potential Applications Of Metasurfacesmentioning

confidence: 99%

Optical Metasurfaces Are Coming of Age: Short- and Long-Term Opportunities for Commercial Applications

Scheuer

2020

ACS Photonics

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In the past several years, metasurfaces have emerged as one of the rapidly growing research fields in optics. These ultrathin arrays composed of subwavelength meta-atoms enable precise control of the various aspects of electromagnetic waves and have been proposed for a wide variety of applications such as lenses, polarization control, holography, coloration, spectroscopy, and many more. Due to recent advancements in nanofabrication processes as well as dramatic improvements in the performances of metasurfaces (efficiency, bandwidth, etc.), this technology has matured sufficiently to be incorporated into commercial applications. In this perspective, the various applications of metasurfaces are briefly reviewed, with focus put on the maturity level of the technology and applications for commercialization. First, the principal properties of metasurfaces are introduced, and the various potential applications are reviewed. Then, the maturity level of metasurface technology for these applications is discussed in terms of the potential added value, cost, and timeline. Finally, an outlook of the short-, intermediate-, and long-term opportunities for real-life applications is presented as well as the long-range challenges for future applications.

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“…Recently, metasurfaces have become an unprecedented platform for realizing numerous compact devices [20][21][22][23][24][25], such as polarization converters, meta-holograms, and metalenses. Especially, metalenses have boosted a wide range of applications including optical trapping, full-color achromatic imaging, polarization imaging, and microscopic imaging due to their compact size, planar structure, and compatibility with CMOS processing [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Design of scalable metalens array for optical addressing

Feng

Yang

et al. 2022

Front. Optoelectron.

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Large-scale trapped-ion quantum computers hold great promise to outperform classical computers and are crucially desirable for finance, pharmaceutical industry, fundamental chemistry and other fields. Currently, a big challenge for trapped-ion quantum computers is the poor scalability mainly brought by the optical elements that are used for optical addressing. Metasurfaces provide a promising solution due to their excellent flexibility and integration ability. Here, we propose and numerically demonstrate a scalable off-axis metalens array for optical addressing working at the wavelength of 350 nm. Metalens arrays designed for x linearly polarized and left circularly polarized light respectively can focus the collimated addressing beam array into a compact focused spot array with spot spacing of 5 μm, featuring crosstalk below 0.82%. Graphical Abstract

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Chromatic Dispersion Manipulation Based on Metalenses

Cited by 66 publications

References 111 publications

Design of Polarization-Independent Reflective Metalens in the Ultraviolet–Visible Wavelength Region

Design of Polarization-Independent Reflective Metalens in the Ultraviolet–Visible Wavelength Region

Optical Metasurfaces Are Coming of Age: Short- and Long-Term Opportunities for Commercial Applications

Design of scalable metalens array for optical addressing

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