Proposition and Numerical Analysis of a Plasmonic Sensing Structure of Metallo-Dielectric Grating and Silver Nano-slabs in a Metal-Insulator-Metal Configuration

Sakib, Mashnoon Alam; Yousuf, S M Enamul Hoque; Gupta, Sourov Das; Islam, Zahurul

doi:10.1007/s11468-018-0739-x

Cited by 8 publications

(3 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Metamaterials manifest unusual electromagnetic properties, such as, negative refraction [17], super-lensing [18] and electromagnetically-induced transparency (EIT) [19,20]. Numerous metamaterial configurations are reported in the literature particularly for sensing applications [21][22][23][24]. A special class of metamaterials is called hyperbolic metamaterials (HMMs) due to their hyperbolic dispersion relation.…”

Section: Introductionmentioning

confidence: 99%

Using High-k VPP Modes in Grating-Coupled Graphene-Based Hyperbolic Metamaterial for Tunable Sensor Design

et al. 2021

Self Cite

View full text Add to dashboard Cite

Volume plasmon polariton (VPP), a high-k mode that arises due to the coupling between two even modes of adjacent layers of an hyperbolic metamaterial (HMM) configuration, is very difficult to be excited by using prism coupling technique due to huge wave-vector mismatch. In this work, we present a graphenebased HMM structure integrated with metal grating to facilitate excitation of VPP modes. A graphene HMM is composed of multilayer graphene super-lattice similar to metal-dielectric super-lattice structure. We report the analytical formulation of the dispersion relation and numerical analysis of the characteristics of the excited VPP modes for the proposed structure in Terahertz frequency region. The best achieved imaging resolution (spatial) of our proposed structure is 15 nm when used as an infra-red imaging platform. As a sensing platform, a maximum sensitivity of 11,050 nm/RIU is achieved for this configuration. The tunability of the resonance wavelength with respect to the structural parameters of the device is also studied and confirmed. Such promising findings are expected to make the proposed structure with integrated excitation coupler a potential candidate for tunable sensor design for different nanophotonic applications, including imaging, and, biomedical and chemical sensing applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Using High-k VPP Modes in Grating-Coupled Graphene-Based Hyperbolic Metamaterial for Tunable Sensor Design

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…In prism and grating coupled configurations, different wavelengths at a particular angle (spectral scheme) or the same wavelength at different angles (angular scheme) can be coupled with resonant modes depending on the refractive indices of the analyte [36,37]. In recent years, many spectral scheme based one dimensional (1D) grating coupled highly sensitive refractive index sensors have been proposed [38][39][40][41]. The major advantage of this configuration is the miniaturization of the structure and it has been possible because of the capability of sub-wavelength grating formation by advanced lithography process [42].…”

Section: Introductionmentioning

confidence: 99%

T-grating on a nano-cavity array based refractive index sensor

2021

View full text Add to dashboard Cite

We report a refractive index sensor comprising of unique T grating on top of periodic nano-cavities. The sensor has two resonant modes sensitive to different regions of the structure with low inter-region interference, hence allows simultaneous detection of two different analytes or more accurate detection of a single analyte. The sensor also provides a self-referencing feature for a broad range of refractive index, from 1.3 to 1.5. Using the FDTD method, the sensitivities of 801.7 nm RIU -1 and 1386.8 nm RIU -1 have been recorded for the two modes respectively. The versatility of the structure makes the sensor a prominent candidate for biochemical and other sensing applications.

show abstract

“…Metamaterials are artificial sub-wavelength structures comprising of multiple materials, which can manifest unusual electromagnetic properties, such as negative refraction [15], superlensing [16] and electromagnetically-induced transparency (EIT) [17,37]. Numerous metamaterial configurations have been proposed particularly for sensing [18][19][20][21] applications. A special class of metamaterials is called hyperbolic metamaterials (HMMs) due to their hyperbolic dispersion relations.…”

mentioning

confidence: 99%

Using High-k VPP Modes in Grating-Coupled Graphene-Based Hyperbolic Metamaterial for Tunable Sensor Design

Islam¹,

Hoque²,

Sakib³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Volume plasmon polariton (VPP), a high-k mode that arises due to the coupling between two even modes of adjacent layers of an hyperbolic metamaterial (HMM) configuration, is very difficult to be excited by using prism coupling technique due to huge wave-vector mismatch. In this work, we present a graphene-based HMM structure integrated with metal grating to facilitate excitation of VPP modes. A graphene HMM is composed of multilayer graphene super-lattice similar to metal-dielectric super-lattice structure. We report the analytical formulation of the dispersion relation and numerical results of the characteristics of the excited VPP modes for the proposed structure in the Terahertz region of the spectrum. The best achieved imaging resolution of our proposed structure is 15 nm when used as an infra-red imaging platform. As a sensing platform, a maximum sensitivity of 11,050 nm/RIU is achieved for this configuration. The tunability of the resonance wavelength with respect to the structural parameters of the device is also studied and confirmed. Such promising findings are expected to make the proposed structure with integrated excitation coupler a potential candidate for tunable sensor design for different nanophotonic applications, including imaging, and, biomedical and chemical sensing applications.

show abstract

Proposition and Numerical Analysis of a Plasmonic Sensing Structure of Metallo-Dielectric Grating and Silver Nano-slabs in a Metal-Insulator-Metal Configuration

Cited by 8 publications

References 42 publications

Using High-k VPP Modes in Grating-Coupled Graphene-Based Hyperbolic Metamaterial for Tunable Sensor Design

Using High-k VPP Modes in Grating-Coupled Graphene-Based Hyperbolic Metamaterial for Tunable Sensor Design

T-grating on a nano-cavity array based refractive index sensor

Using High-k VPP Modes in Grating-Coupled Graphene-Based Hyperbolic Metamaterial for Tunable Sensor Design

Contact Info

Product

Resources

About