Bandpass Filter Integrated Metalens Based on Electromagnetically Induced Transparency

Shan, Dayong; Gao, Jinsong; Xu, Na; Liu, Hai; Song, Naitao; Sun, Qizhen; Zhao, Yi; Tang, Yang; Wang, Yansong; Feng, Xiaoguo; Chen, Xin

doi:10.3390/nano12132282

Cited by 10 publications

(5 citation statements)

References 33 publications

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“…Meta-lens is a planar optical device composed of two-dimensional metamaterial that can manipulate the phase, polarization, amplitude, and other properties of light flexibly [ 1 ]. According to the applications, different types of meta-lens have been designed, such as achromatic meta-lens [ 2 , 3 , 4 , 5 , 6 ], meta-lens-based optical polarization sensor [ 7 ], meta-lens-based bandpass filters [ 8 ], sub-resolution meta-lens [ 9 , 10 ], color holography [ 11 , 12 , 13 ], multifunctional meta-lens [ 14 , 15 , 16 , 17 ], adaptive meta-lens [ 18 , 19 , 20 ], integrated photonics [ 21 , 22 , 23 ] and spectrometers [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

A Design Method of Diffraction Structure Based on Metasurface for High-Resolution Spectroscopy

Hu,

Wang,

Zhao

et al. 2023

Nanomaterials

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In this paper, a design method of diffraction structure based on metasurface is proposed for light splitting and focusing simultaneously. In the method, firstly, the light field calculation model of the proposed structure is established based on Fresnel diffraction and the transmittance function is calculated. Then, the model structural parameter selection mechanism is determined, and the spectrum resolution equation of the structure is derived. Simulation results indicate that the proposed method can offer a broader working bandwidth and enhanced higher resolution compared to off-axis meta-lens. Moreover, this proposed method can be deployed in high-resolution, wide-band ultra-compact spectrometer systems potentially.

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Section: Introductionmentioning

confidence: 99%

A Design Method of Diffraction Structure Based on Metasurface for High-Resolution Spectroscopy

Hu,

Wang,

Zhao

et al. 2023

Nanomaterials

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“…Meta-lens can obtain the desired phase distribution by adjusting the distribution of the unit structure, which can greatly reduce the size and volume of the element. Depending on the application, different types of meta-lens have been designed, such as achromatic meta-lens [3] [4] [5] [6] [7], meta-lens-based band-pass filters [8], sub-resolution meta-lens [9] [10], artificial intelligence-assisted meta-lens [11], color holography [12] [13] [14], multifunctional meta-lens [15] [16] [17] [18] and re-configurable meta-lens [19] [20] [21].…”

Section: Introductionmentioning

confidence: 99%

Characteristic Analysis of Off-Axis Meta-Lens

Hu¹,

Zhao²,

Wang³

et al. 2023

OPJ

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Meta-lens are a new type of planar optical element that can flexibly manipulate the phase, polarization and amplitude of the beam, and are currently receiving a great deal of attention as they are easier to process and manufacture. Off-axis meta-lens are a special type of meta-lens with a certain degree of dispersion that can be used as a beam-splitting element, providing a unique and feasible way to realize micro-miniature instruments. We analyze the effects of different numerical apertures and off-axis angles on the spectral resolution, focusing efficiency and simulation results of off-axis meta-lens to provide ideas for subsequent research and application of off-axis meta-lens. A number of off-axis meta-lens with parameters NA = 0.408 α = 13˚, NA = 0.18 α = 13˚ and NA = 0.408 α = 20˚ were simulated through Lumerical software.The results show that the off-axis angle is related to the resolution; the larger the angle, the better the spectral resolution but the lower the focusing efficiency; when the numerical aperture is smaller, the smaller the coverage of the phase distribution, which will lead to a larger deviation between simulation and theory. The designer needs to balance the numerical aperture, off-axis angle and other parameters reasonably according to the requirements in order to achieve the desired effect. The findings of this study have important reference values for the theoretical analysis of off-axis meta-lens and the design of parameters in practical applications.

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“…It is a superconductor-based multichannel photonic crystal optical filter tunable in visible and telecommunication windows at cryogenic temperature. In [ 7 ], an integrated metalens bandpass filter based on electromagnetically induced transparency for long-wave infrared imaging for compact optical systems was developed.…”

Section: Introductionmentioning

confidence: 99%

Optical and Mechanical Properties of Layered Infrared Interference Filters

Bembenek

Маковійчук

Shatskyi

et al. 2022

Sensors

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The design and manufacturing technology of interference-absorbing short-wave filters based on a layered composition of Si–SiO on a sapphire substrate of various shapes was developed. A transition layer of SiO was applied to the surface of the substrate, alternating with layers of Si–SiO with an odd number of quarter-wave layers of materials with high (Si) and low refractive indices (SiO), and the application of an outer layer of SiO as an appropriate control of the materials’ thickness. The optical properties of the infrared light filter were studied. It was established that the created design of the light filter provides the minimum light transmission in the visible region of the spectrum from 0.38 to 0.78 µm and the maximum in the near infrared region from 1.25 to 5 µm and has stable optical indicators. A method for studying the stress–strain state and strength of a multilayer coating of a light filter under the action of a local arbitrarily oriented load was developed. For simplicity in the analysis and for obtaining results in the analytical form, the one-dimensional model of the configuration “multilayer covering—firm substrate” constructed earlier by authors was used. From a mechanical point of view, the upper protective layer of the multilayer coating was modeled by a flexible plate, and the inner operational composite N-layer was subjected to Winkler’s hypothesis about the proportionality of stresses and elastic displacements.

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Bandpass Filter Integrated Metalens Based on Electromagnetically Induced Transparency

Cited by 10 publications

References 33 publications

A Design Method of Diffraction Structure Based on Metasurface for High-Resolution Spectroscopy

A Design Method of Diffraction Structure Based on Metasurface for High-Resolution Spectroscopy

Characteristic Analysis of Off-Axis Meta-Lens

Optical and Mechanical Properties of Layered Infrared Interference Filters

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