Hybridized metamaterial platform for nano-scale sensing

Park, Jun‐Hee; Kodigala, Ashok; Ndao, Abdoulaye; Kanté, Boubacar

doi:10.1364/oe.25.015590

Cited by 15 publications

(4 citation statements)

References 27 publications

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“…MM-based sensing can be realised in the microwave, terahertz (THz), infrared (IR), visible and ultraviolet (UV) regimes. Due to controllable optical parameters, the performance is enhanced by introducing plasmonics in a metal-insulatormetal (MIM) structure [88]. Planar MIM (p-MIM) and vertical MIM (v-MIM) structures are reported in the literature, but these structures inhibit interaction of the target analyte with the hot spot region [89].…”

Section: Hyperbolic Metamaterials (Hmms)mentioning

confidence: 99%

Metasurfaces for Sensing Applications: Gas, Bio and Chemical

Tabassum

Nayemuzzaman

Kala

et al. 2022

Sensors

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Performance of photonic devices critically depends upon their efficiency on controlling the flow of light therein. In the recent past, the implementation of plasmonics, two-dimensional (2D) materials and metamaterials for enhanced light-matter interaction (through concepts such as sub-wavelength light confinement and dynamic wavefront shape manipulation) led to diverse applications belonging to spectroscopy, imaging and optical sensing etc. While 2D materials such as graphene, MoS2 etc., are still being explored in optical sensing in last few years, the application of plasmonics and metamaterials is limited owing to the involvement of noble metals having a constant electron density. The capability of competently controlling the electron density of noble metals is very limited. Further, due to absorption characteristics of metals, the plasmonic and metamaterial devices suffer from large optical loss. Hence, the photonic devices (sensors, in particular) require that an efficient dynamic control of light at nanoscale through field (electric or optical) variation using substitute low-loss materials. One such option may be plasmonic metasurfaces. Metasurfaces are arrays of optical antenna-like anisotropic structures (sub-wavelength size), which are designated to control the amplitude and phase of reflected, scattered and transmitted components of incident light radiation. The present review put forth recent development on metamaterial and metastructure-based various sensors.

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Section: Hyperbolic Metamaterials (Hmms)mentioning

confidence: 99%

Metasurfaces for Sensing Applications: Gas, Bio and Chemical

Tabassum

Nayemuzzaman

Kala

et al. 2022

Sensors

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“…[18] The optical properties of such metasurfaces can be modulated across various wavelengths by carefully designing the meta-atoms. In recent years, a variety of optical devices, including metalenses, [19][20][21][22][23] structured light projection, [24][25][26] beam splitters and combiners, [27][28][29][30] meta-power-limiters, [31,32] carpet cloaking, [33,34] holograms, [35][36][37] and sensing [38][39][40][41] have been accomplished using both dielectric and plasmonic metasurfaces.…”

Section: Introductionmentioning

confidence: 99%

GPU‐Accelerated and Memory‐Independent Layout Generation for Arbitrarily Large‐Scale Metadevices

Moayed Baharlou,

Hemayat,

Toussaint

et al. 2023

Advcd Theory and Sims

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Metadevices are of paramount interest and importance due to their exotic capabilities in light control and manipulation in the nano‐scale regime. Various practical applications, including wearable devices, lasers, optical sensors, high‐resolution microscopy, both virtual and augmented reality, and metasails, require large‐scale metasurfaces. However, layout generation for large metasurfaces, faces challenges as up to billions of unit cells are required to create a metasurface, resulting in slow speeds and high memory demands. Here, a new framework namely ParallelGDS is proposed for fully parallel, ultra‐fast, and memory‐independent generation of graphic design system (GDSII) files for arbitrarily large metasurfaces. Compared to existing methods such as GDSTk, GDSPy, LUMERICAL's polystencil, the proposed framework significantly accelerates the layout generation process by factors of 10 to 100. More importantly, ParallelGDS drastically reduces the required memory (an problem) with an average reduction factor of where is the normalized metasurface diameter, as the framework uses only ≈2 GB of memory regardless of the size of the metasurface. The proposed framework offers complete control over memory requirements and parallelization levels of layout generation, ranging from single‐core CPU usage to multithreaded CPU utilization, and finally, full utilization of all GPU cores.

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“…Metasurfaces can be seen as a 2D version of metamaterials. By rationally designing the unit cells, metasurface can flexibly control the intensity, phase, polarization and propagation of electromagnetic waves for manufacturing various optical components, such as concentrators [3], polarizers [4], deflectors [5], lenses [6,7], sensors [8,9], absorbers [10,11] and carpet cloaks [12][13][14][15][16][17][18][19]. Compared with the existing invisibility scheme of transforming optics [20,21] and scattering cancellation [22,23], metasurface cloaking does not involve complex material parameters in the design process and has the advantages of light weight, small thickness, easy processing and conformality.…”

Section: Introductionmentioning

confidence: 99%

Broadband and wide-angle terahertz carpet cloaks based on pattered graphene metasurfaces

Ding

Tian

et al. 2020

J. Phys. D: Appl. Phys.

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Conventional metasurface carpet cloak generally has a narrow working bandwidth and a small incident angle range, which is far from meeting the requirements of modern military for broadband and wide-angle cloaking. Based on graphene apertures and graphene patches, we propose the design of metasurface carpet cloaks for terahertz wave and explore their application potential in realizing broadband and wide-angle cloaking. Simulation results demonstrate that the carpet cloaks based on graphene apertures and patches can achieve a large working bandwidth of 35.7% and 52.6%, and a wide angular span of ±30° and ±40°, respectively. The cloaking performance and the working bandwidths of the two graphene metasurface carpet cloaks can be tuned by changing the graphene Fermi energy uniformly. The carpet cloak constructed by graphene patches has a larger bandwidth and a wider angle domain than that by graphene apertures, which can be understood by comparing the phase dispersion of the two graphene metasurfaces.

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Hybridized metamaterial platform for nano-scale sensing

Cited by 15 publications

References 27 publications

Metasurfaces for Sensing Applications: Gas, Bio and Chemical

Metasurfaces for Sensing Applications: Gas, Bio and Chemical

GPU‐Accelerated and Memory‐Independent Layout Generation for Arbitrarily Large‐Scale Metadevices

Broadband and wide-angle terahertz carpet cloaks based on pattered graphene metasurfaces

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