Hyperbolic Metamaterial-Based Optical Biosensor for Detecting Cancer Cells

Baqir, M. A.; Choudhury, Pankaj Kumar

doi:10.1109/lpt.2022.3228943

Cited by 24 publications

(4 citation statements)

References 26 publications

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“…(Baqir and Choudhury, 2017;Alibakhshikenari et al, 2019b;Alibakhshikenari et al, 2019c;Alibakhshikenari et al, 2019d;Alibakhshikenari et al, 2022b). The research on the basic theory, functional devices and engineering applications of electromagnetic metamaterials has aroused extensive research interests in the fields of physics, information and materials (Baqir, 2019;Baqir, 2020;Pan et al, 2022a;Baqir and Choudhury, 2022;. Based on the designable electromagnetic parameters and distribution of metamaterials, researchers have developed various new devices such as metamaterial cloaks, lenses, and antennas (Li et al, 2021a;Wang et al, 2022a;Yang et al, 2022;Zhao and Wang, 2022;Wang et al, 2023a).…”

Section: Introductionmentioning

confidence: 99%

Design and performance evaluation of a novel metamaterial broadband THz filter for 6G applications

Althuwayb,

Rashid,

Elhamrawy

et al. 2023

Front. Mater.

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Terahertz (THz) radiation, which has applications in the imaging of objects, non-destructive testing, satellite communication, medical diagnostics, and biosensing, has generated a great deal of attention due to its remarkable properties. This paper proposes a novel broadband filter for THz applications. The main idea is to overcome the insertion loss and bandwidth issues by modeling a frequency-domain finite difference method and guided-mode resonance (GMR). The optimal design scheme of the wideband pass filter based on the circular resonant ring is discussed by comparing the transmission parameters under various parameters. This scheme overcomes the restriction of the narrow passband bandwidth of the prior THz filters and achieves approximately 3 dB bandwidth of 0.54 THz. The proposed THz filter paper also has the advantages of a straightforward structure, low processing costs, and ease of conformal with other structures, and it can be used for stealth fighters, new communication technology, and precise instruments. In addition, when compared to existing models, the suggested filter offers higher 3 dB BW operation, increased transmittance, low insertion loss, and stable performance at various oblique angles.

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Section: Introductionmentioning

confidence: 99%

Design and performance evaluation of a novel metamaterial broadband THz filter for 6G applications

Althuwayb,

Rashid,

Elhamrawy

et al. 2023

Front. Mater.

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“…In contrast, the FWHH of the LSPR band decreased in all the plasmonic nanocomposite thin film sets with the annealing treatment, indicating that the dispersion of the NPs size decreases, thus fine-tuning their distribution. For instance, the NP's sensing capability can be characterized through a figure of merit (FoM) determined by a ratio between the sensitivity and the FWHH of the LSPR band [4,[67][68][69]. A high FoM (and sensitivity) is mainly caused by a narrow FWHM [70].…”

Section: Optical Response Analysismentioning

confidence: 99%

Enhancing the Extinction Efficiency and Plasmonic Response of Bimetallic Nanoparticles of Au-Ag in Robust Thin Film Sensing Platforms

Meira,

Rodrigues,

Borges

et al. 2023

Sensors

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The extinction efficiency of noble metal nanoparticles (NPs), namely gold (Au) and silver (Ag), are dependent on their size and surrounding dielectric. Exploiting the Localized Surface Plasmon Resonance (LSPR) phenomenon, the composition and structure of the NPs might be tailored to achieve a configuration that optimizes their response (sensitivity) to environmental changes. This can be done by preparing a bimetallic system, benefiting from the chemical stability of Au NPs and the higher scattering efficiency of Ag NPs. To enhance the LSPR sensing robustness, incorporating solid supports in the form of nanocomposite thin films is a suitable alternative. In this context, the NPs composed of gold (Au), silver (Ag), and their mixture in bimetallic Au-Ag NPs, were grown in a titanium dioxide (TiO2) matrix using reactive DC magnetron sputtering. Thermal treatment at different temperatures (up to 700 °C) tuned the LSPR response of the films and, consequently, their sensitivity. Notably, the bimetallic film with Au/Ag atomic ratio 1 exhibited the highest refractive index sensitivity (RIS), with a value of 181 nm/RIU, almost one order of magnitude higher than monometallic Au-TiO2. The nanostructural analysis revealed a wide NP size distribution of bimetallic NPs with an average size of 31 nm, covering about 20% of the overall surface area. These findings underscore the significant potential of bimetallic film systems, namely AuAg-TiO2, in LSPR sensing enhancement.

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“…This symphony of MM diversity has given rise to a captivating ensemble of applications, encompassing not only modulators [9] and sensors [10] but also venturing into the realm of absorbers. For example, Baqir et al investigated a hyperbolic metamaterial (HMM)-based optical biosensor for early-stage cancer detection [11].…”

Section: Introductionmentioning

confidence: 99%

Graphene-Metamaterial Based Tunable Broadband Polarization Insensitive Absorber for Terahertz Antenna Design

Rahad,

Mohsin,

Belal Hossain Bhuian

et al. 2024

IEEE Access

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The advent of graphene has opened new avenues for the design of high-performance metamaterial devices, particularly in the realm of electromagnetic absorption applications. This paper introduces a novel design for a broadband tunable graphene metamaterial absorber (GMMA) utilizing graphene. Through numerical simulations, our proposed GMMA demonstrates a absorption bandwidth of 3 THz (1.14 -4.14 THz) with absorptivity exceeding 90% for both transverse magnetic (TM) and transverse electric (TE) modes. A comprehensive numerical analysis, using a transmission line equivalent circuit model, is conducted to find out the impedance components of all the corresponding layers, which can be significant to determine the impedance matching. The absorber exhibits wideband tunability, polarization insensitivity, and robust tolerance to structural variations, making it a promising candidate for diverse applications in the terahertz (THz) band especially in the antenna regime. Our proposed GMMA antenna can achieve a gain of 37.48 dB, a directivity of 32.81 dB, a return loss of -34 dB, and an efficiency of 99.96%. This research provides a valuable contribution to the development of tunable broadband GMMAs for THz frequencies, addressing the increasing demand for high-speed and efficient devices in the modern era of science and technology.

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Hyperbolic Metamaterial-Based Optical Biosensor for Detecting Cancer Cells

Cited by 24 publications

References 26 publications

Design and performance evaluation of a novel metamaterial broadband THz filter for 6G applications

Design and performance evaluation of a novel metamaterial broadband THz filter for 6G applications

Enhancing the Extinction Efficiency and Plasmonic Response of Bimetallic Nanoparticles of Au-Ag in Robust Thin Film Sensing Platforms

Graphene-Metamaterial Based Tunable Broadband Polarization Insensitive Absorber for Terahertz Antenna Design

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