Toward Multispectral Imaging with Colloidal Metasurface Pixels

Stewart, JohnS.S.; Akselrod, Gleb M.; Smith, David R.; Mikkelsen, Maiken H.

doi:10.1002/adma.201602971

Cited by 80 publications

(73 citation statements)

References 55 publications

(105 reference statements)

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“…Subwavelength structures play a central role in the development of optoelectronics and they offer great tunability beyond the natural optical properties of materials by tuning light absorption, [1] polarization sensitivity, [2,3] and wavelength selectivity. [4][5][6] Combining the chemical tunability of colloidal quantum dots (CQDs) and the optical versatility of nanophotonic structures, CQDs-based optoelectronics [7] are making www.advmat.de www.advancedsciencenews.com but this method limits the light interaction to the CQDs/substrate interface and prevents embedding optical structures within CQDs to obtain better light-matter interaction for both detection [29,30] and emission [31] applications.…”

Section: Doi: 101002/adma201906590mentioning

confidence: 99%

“…The results show that this approach offers a feasible pathway to combine quasi-3D nanostructures with colloidal materials-based optoelectronics and access a new level of light manipulation.Subwavelength structures play a central role in the development of optoelectronics and they offer great tunability beyond the natural optical properties of materials by tuning light absorption, [1] polarization sensitivity, [2,3] and wavelength selectivity. [4][5][6] Combining the chemical tunability of colloidal quantum dots (CQDs) and the optical versatility of nanophotonic structures, CQDs-based optoelectronics [7] are making…”

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confidence: 99%

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Direct Imprinting of Quasi‐3D Nanophotonic Structures into Colloidal Quantum‐Dot Devices

et al. 2020

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Three‐dimensional (3D) subwavelength nanostructures have emerged and triggered tremendous excitement because of their advantages over the two‐dimensional (2D) counterparts in fields of plasmonics, photonic crystals, and metamaterials. However, the fabrication and integration of 3D nanophotonic structures with colloidal quantum dots (CQDs) faces several technological obstacles, as conventional lithographic and etching techniques may affect the surface chemistry of colloidal nanomaterials. Here, the direct fabrication of functional quasi‐3D nanophotonic structures into CQD films is demonstrated by one‐step imprinting with well‐controlled precision in both vertical and lateral directions. To showcase the potential of this technique, diffraction gratings, bilayer wire‐grid polarizers, and resonant metal mesh long‐pass filters are imprinted on CQD films without degrading the optical and electrical properties of CQD. Furthermore, a dual‐diode CQD detector into an unprecedented mid‐wave infrared two‐channel polarization detector is functionalized by embedding an imprinted bilayer wire‐grid polarizer within the CQDs. The results show that this approach offers a feasible pathway to combine quasi‐3D nanostructures with colloidal materials‐based optoelectronics and access a new level of light manipulation.

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Section: Doi: 101002/adma201906590mentioning

confidence: 99%

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confidence: 99%

Direct Imprinting of Quasi‐3D Nanophotonic Structures into Colloidal Quantum‐Dot Devices

et al. 2020

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“…Another cost‐effective method for the generation of plasmonic nanostructure arrays is the deposition of chemically synthesized colloidal metal nanocrystals on surfaces (Figure d) . Colloidal metal nanocrystals are facile to synthesize and can be of well‐defined and uniform sizes and shapes .…”

Section: Generation Of Plasmonic Colorsmentioning

confidence: 99%

Advanced Plasmonic Materials for Dynamic Color Display

2017

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Plasmonic structures exhibit promising applications in high-resolution and durable color generation. Research on advanced hybrid plasmonic materials that allow dynamically reconfigurable color control has developed rapidly in recent years. Some of these results may give rise to practically applicable reflective displays in living colors with high performance and low power consumption. They will attract broad interest from display markets, compared with static plasmonic color printing, for example, in applications such as digital signage, full-color electronic paper, and electronic device screens. In this progress report, the most promising recent examples of utilizing advanced plasmonic materials for the realization of dynamic color display are highlighted and put into perspective. The performances, advantages, and disadvantages of different technologies are discussed, with emphasis placed on both the potential and possible limitations of various hybrid materials for dynamic plasmonic color display.

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“…Recently, integrated multifunctional metasurfaces that can deal with concurrent tasks have drawn much attention of the scientific community . One of the designs to realize multifunctional metasurfaces is to divide the device into several areas, and each area serves as one functionality .…”

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Energy‐Tailorable Spin‐Selective Multifunctional Metasurfaces with Full Fourier Components

Liu

et al. 2019

Advanced Materials

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investigated at different wavebands, such as microwave, [1] terahertz, [2,3] and infrared [4] regions. Artificial metasurfaces composed of customized planar nanostructures have been a research hot spot to manipulate EM waves, which provide a wide platform for deep light-matter interactions at the subwavelength scale. [5][6][7][8][9][10] Taking advantage of the abundant resonances generated from nanostructures composed of different materials, such as metallic, [11] dielectric, [12,13] and 2D materials, [14] various kinds of metasurfaces have been proposed in the applications of electromagnetically induced transparency, [15] zero-index responses, [16,17] asymmetric spin-orbit interaction, [18,19] structural colors, [20][21][22][23] surface waves, [24] topological photonics, [25,26] and so on. Metasurfaces are also a sophisticated and versatile tool to control optical amplitude, [27] phase, [28] polarization, [29] and the combination of these optical dimensions. [30][31][32][33] Compared with single-layer metasurfaces, few-layer metasurfaces with two or more overlapping structure layers significantly increase the effective light-matter interaction distances and exploit the integrated functionalities of metasurfaces. [34][35][36][37][38][39] However, to date the integration of arbitrary optical functionalities onto one single metasurface is still challenging due to the limitation of theoretical design and the absence of full control for multidimensional optical fields.Recently, integrated multifunctional metasurfaces that can deal with concurrent tasks have drawn much attention of the scientific community. [40][41][42][43] One of the designs to realize multifunctional metasurfaces is to divide the device into several areas, and each area serves as one functionality. [44,45] Such designs usually suffer from low information capacity and strong noises originated from channels mixing. [46] Another design utilizes harmonic analysis to distribute all the functionality channels to each nanostructures, which has been widely investigated to achieve polarization-controllable multichannel vortex beams generation. [47][48][49] Jiang et al. proposed a broadband multipole vortex beams generation for centimeter waves, and opened up the possibilities for multichannel informational gigahertz modulation. [50] However, the abovementioned designs employ intensity-or phase-only manipulation to control the optical fields, which suffer from unavoidable noises for multifunctional optical devices. Especially for the phase-only design, [51] one usually needs to perform complex optimizations Compact integrated multifunctional metasurface that can deal with concurrent tasks represent one of the most profound research fields in modern optics. Such integration is expected to have a striking impact on minimized optical systems in applications such as optical communication and computation. However, arbitrary multifunctional spin-selective design with precise energy configuration in each channel is still a challenge, and suffers from intrinsic noise...

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Toward Multispectral Imaging with Colloidal Metasurface Pixels

Cited by 80 publications

References 55 publications

Direct Imprinting of Quasi‐3D Nanophotonic Structures into Colloidal Quantum‐Dot Devices

Direct Imprinting of Quasi‐3D Nanophotonic Structures into Colloidal Quantum‐Dot Devices

Advanced Plasmonic Materials for Dynamic Color Display

Energy‐Tailorable Spin‐Selective Multifunctional Metasurfaces with Full Fourier Components

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