Inverse design of 1D color splitter for high-efficiency color imaging

Li, Jiahao; Cao, Mengwei; Liang, Weili; Zhang, Yilin; Xie, Zhenwei; Yuan, Xiaocong

doi:10.3788/col202220.073601

Cited by 4 publications

(2 citation statements)

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“…The inverse design problem can be solved as an optimization problem that minimizes or maximize an objective function of the unit cell parameters subject to some constraints (Figure 5B). [29,31,134,[136][137][138][139] The objective function is the mathematical expression of what functionality the metadevice is to achieve.…”

Section: Inverse Design By Classical Optimization Techniquesmentioning

confidence: 99%

Metamaterials: From fundamental physics to intelligent design

Chen

Zhu

et al. 2022

Interdisciplinary Materials

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Metamaterials are artificial structures with the ability to efficiently control light‐field, attracting intensive attention in the past few decades. People have studied the working principles, design strategies, and fabrication methods of metamaterials, making this field cross and combine with many disciplines, including physics, material science, electronics, and chemistry. In recent years, with the rapid development of high‐efficiency and multifunctional metasurfaces, which are a two‐dimensional version of metamaterials, great efforts have been made to push this material to practical applications. In particular, the introduction of artificial intelligent (AI) algorithms enables metamaterials‐based photonic devices that exhibit excellent performances and intelligent functionalities. In this review, we first introduce the basic concepts, working principles, design methods, and applications of metamaterials, and then focus on the rapidly developing metamaterials research combined with AI algorithms. Finally, we conclude this review with personal perspectives on the current problems and future directions of metamaterials research and developments.

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Section: Inverse Design By Classical Optimization Techniquesmentioning

confidence: 99%

Metamaterials: From fundamental physics to intelligent design

Chen

Zhu

et al. 2022

Interdisciplinary Materials

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“…where an adjoint-based method was applied to design a 3D device with a higher fabricability. Despite the rapidly growing field, 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 there has not been any systematic investigation into the choice of device design parameters. The choice of design parameters, such as the device height or selection of refractive index, has a critical effect on the final optimized devices.…”

Section: Introductionmentioning

confidence: 99%

Design parameters of free-form color splitters for subwavelength pixelated image sensors

Kim,

Park,

Kim

et al. 2023

iScience

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Inverse design of a light nanorouter for a spatially multiplexed optical filter

Peng,

Lu,

Zhang

et al. 2023

Opt. Lett.

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It is attractive to use an optical nanorouter by artificial nanostructures to substitute the traditional Bayer filter for an image array sensor, which, however, poses great challenges in balancing the design strategy and the ease of fabrication. Here, we implement and compare two inverse design schemes for rapid optimization of RGGB Bayer-type optical nanorouter. One is based on the multiple Mie scattering theory and the adjoint gradient that is applicable to arrays of nanospheres with varying sizes, and the other is based on the rigorous coupled wave analysis and the genetic algorithm. In both cases, we study layered nanostructures that can be efficiently modeled respectively which greatly accelerates the inverse design. It is shown that the color-dependent peak collection efficiencies of nanorouters designed in the two methods for red, green, and blue wavelengths reach 37%, 44%, and 45% and 52%, 50%, and 66%, respectively. We further demonstrate color nanorouters that provide light focusing to four quadrants working in both the visible and infrared bands, which promises multispectral imaging applications.

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Inverse design of 1D color splitter for high-efficiency color imaging

Cited by 4 publications

References 0 publications

Metamaterials: From fundamental physics to intelligent design

Metamaterials: From fundamental physics to intelligent design

Design parameters of free-form color splitters for subwavelength pixelated image sensors

Inverse design of a light nanorouter for a spatially multiplexed optical filter

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