All-Optical Tunable Plasmonic Biosensor Made of Graphene and Metamaterial

Lotfi, Fariba; Sang-Nourpour, Nafiseh; Kheradmand, Reza

doi:10.1007/s11468-021-01560-0

Cited by 4 publications

(2 citation statements)

References 42 publications

(48 reference statements)

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“…Metamaterial-dielectric waveguides have been studied in recent years 1 , 2 with a variety of applications in optical devices, such as switches, 3 sensors, 4 , 5 modulators, 6 , 7 waveguide polarizer, 8 and nonlinear nanophotonics 9 . There are different metamaterial waveguide structures including but not limited to slab, cylindrical, and elliptical waveguides 2 , 10 …”

Section: Introductionmentioning

confidence: 99%

Analysis of hollow elliptical waveguide with metamaterial cladding

Ghasemzadeh,

Lotfi,

Kheradmand

et al. 2024

Opt. Eng.

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We characterize the behavior of modes propagating along a hollow elliptical waveguide with lossy metamaterial cladding. The proposed metamaterial-dielectric elliptical waveguide supports surface-plasmon polariton (SPP) and hybrid ordinary-SPP modes in the operating frequency ranges. Previous studies on metamaterial-dielectric elliptical waveguides either ignore the effect of energy loss on the modes characteristics or employ approximate approaches to characterize modes behavior. Although some previous works include energy loss, they do not specify SPPs propagation versus hybrid-ordinary SPPs propagation in the operating frequency ranges. Here, we consider energy loss in the waveguide to eliminate errors resulting from neglecting the loss. Our waveguide structure facilitates SPP and hybrid ordinary-SPP modes propagation along the waveguide, has better energy confinement, and higher propagation length than previous results in the literature. In the elliptical waveguide, the propagation coefficient changes by changing the waveguide eccentricity; therefore, the elliptical nature of the studied waveguide facilitates its applications in pressure optical sensors.

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Section: Introductionmentioning

confidence: 99%

Analysis of hollow elliptical waveguide with metamaterial cladding

Ghasemzadeh,

Lotfi,

Kheradmand

et al. 2024

Opt. Eng.

Self Cite

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“…The large surface area of graphene and its high electrical conductivity make it an ideal candidate for the development of highly sensitive and selective biosensors [17]. Several studies have explored the use of graphene-based biosensors for cancer detection, such as breast cancer [18], basal cancer [19], and blood cancer [20]. The studies highlighted the potential of graphene for cancer detection.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach Utilizing Graphene-based Microfluidic Technology for Skin Cancer Detection

Rezeg,

Hlali,

Oueslati

et al. 2024

PIER C

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The introduction of microfluidics technology with graphene provides many advantages, such as improving the selectivity and sensitivity, achieving chemical and thermal stability, decreasing the size of devices, and improving the cell and biological response of the substance. The principal objective of this paper is to compare the constitutive parameters in order to develop graphene-based microfluidic sensors. The simulation results illustrate that the suggested sensor exhibits a strong ability to detect normal skin tissue with an excellent sensitivity of 6.060 (THz/RIU) and to identify skin cancer with a notably significant sensitivity of 4.59 THz/RIU. Additionally, it shows considerable figure of merits, with values of 550.9 and 353.61 RIU, respectively. In conclusion, the simplicity, effectiveness, and adjustability of the proposed biosensor render it well suited for skin tumor detection.

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