Effect of magnesium oxide adhesion layer on resonance behavior of plasmonic nanostructures

Sadri-Moshkenani, Parinaz; Khan, Mohammad Wahiduzzaman; Islam, Md. Shafiqul; Montoya, Eric; Bagherzadeh, Nader; Boyraz, Özdal

doi:10.1063/5.0008665

Cited by 9 publications

(4 citation statements)

References 35 publications

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“…As a result, the performance of the SPR decreases (Ekgasit et al, 2005;Jeppesen et al, 2010;Najiminaini et al, 2011;Otte et al, 2011;Hughes et al, 2012;Abbott et al, 2019). Some studies have proposed using oxides such as ITO, TiO 2 , and Cr 2 O 3 as adhesion layers to reduce losses (Aouani et al, 2009;Djaker et al, 2010;Sadri-Moshkenani et al, 2020). These oxides are low-loss materials at optical wavelengths.…”

Section: Introductionmentioning

confidence: 99%

“…These oxides are low-loss materials at optical wavelengths. In a recent work (Sadri-Moshkenani et al, 2020), it has been demonstrated that low-loss magnesium oxide (MgO) could be the best alternative for the conventional adhesion layers and other adhesion layers proposed in the earlier works. Hence, in this work, MgO is chosen as the adhesive layer of the proposed structure of the SPR sensor.…”

Section: Introductionmentioning

confidence: 99%

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High performance surface plasmon resonance based sensor using black phosphorus and magnesium oxide adhesion layer

Kumar

Yadav²,

Malomed³

2023

Front. Mater.

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A five-layered Kretschmann configuration-based novel structure is designed for a highly sensitive surface plasmon resonance (SPR) sensor. An adhesion layer of magnesium oxide (MgO) is employed on the BK7 prism to avoid the adverse effects of metallic layers, which cause SPR broadening and a decrease in the resonance magnitude. A few layers of black phosphorus (BP) on top of the silver (Ag) metal layer are added to complete the structure, which becomes the BK7/MgO/Ag/BP configuration. The investigation is carried out using attenuated total reflection (ATR), while the widely used transfer matrix method (TMM) is applied to evaluate the performance of the SPR sensor. A separate analysis is performed using three thicknesses, 5 nm, 10 nm, and 15 nm of MgO, an optimized thickness of 40 nm of Ag, and eight layers of BP. The results revealed that the configuration BK7/MgO (10 nm)/Ag (40 nm)/BP (8 layers) delivers a maximum sensitivity (S) of 234°RIU−1. Moreover, the configuration BK7/MgO (5 nm)/Ag (40 nm)/BP (8 layers) delivers a maximum figure of merit (FOM) of 38.18°RIU−1. With these kinds of extraordinary features, it is expected that the proposed SPR sensor can be applied in different fields of biosensing.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High performance surface plasmon resonance based sensor using black phosphorus and magnesium oxide adhesion layer

Kumar

Yadav²,

Malomed³

2023

Front. Mater.

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“…This may be due to the low optical conductivity 525 of permalloy 367,526 and thus, high damping factors for any type of plasmonic resonance. In addition, silicon as substrate material exhibits a high refractive index that significantly red-shifts, damps and broadens electromagnetic resonances 371,527 . Nevertheless, indications for plasmonic resonances have been found during optical damagethreshold tests using laser pulses.…”

Section: Summary and Perspectivementioning

confidence: 99%

Toroidal Order in Magnetic Metamaterials

Lehmann¹

2022

Springer Theses

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“…This may be due to the low optical conductivity [50] of permalloy [51,52] and thus, high damping factors for any type of plasmonic resonance. In addition, silicon as substrate material exhibits a high refractive index that significantly red-shifts, damps and broadens electromagnetic resonances [53,54]. Nevertheless, indications for plasmonic resonances have been found during optical damage-threshold tests using laser pulses.…”

Section: Summary and Perspectivementioning

confidence: 99%

Optical Effects in Artificial Magneto-Toroidal Crystals

Lehmann

2021

Toroidal Order in Magnetic Metamaterials

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Both, linear magneto-optical effecfts [1-3], as introduced in Sect. 3.2.2, and the anomalous Hall effect [4] are based on the violation of time-reversal symmetry that manifests in a coupling to electromagnetic fields by energy-state shifts due to spin-orbit interaction. As a consequence, the material under consideration exhibits an anisotropic response to electromagnetic fields that relates to the direction of magnetic-field-induced or spontaneously-aligned magnetic moments, see Sect. 3.2.2. In contrast, the absence of point symmetries may allow for apparently similar macroscopic effects such as an optical birefringence or an optical activity. However, those effects are based on electric-field-induced or inherent crystal-field anisotropies with respect to atom-or ion-side symmetries in, e.g., a polar or chiral material. A combination of these two symmetry constraints with different microscopic origin results in a variety of optical effects, namely the magnetochiral effect (MChE) that arises in a chiral medium with broken time-reversal symmetry and an optical magnetoelectric effect (OME) in a polar medium with broken time reversal symmetry. More precisely, the OME can be understood as a combined Pockels and Voigt effect, both inducing linear birefringence. As a consequence, the origin of the effect does not have to be an intrinsic material property such as in a polar magnetic matter, but can be induced by applied electric and magnetic fields [5]. Both OME and MChE have in common that they manifest themselves in non-reciprocal directional-dependent material responses, associated for example with the sign of the light's propagation vector in optical experiments [6][7][8][9][10][11]. The OME is typically probed as a change of optical absorption (α) upon a sign change of the light's wave-vector component k i . In a polar magnetic material, for example, the sign of the effect depends on the sign of the triple product of the light's wave vector ( k) and the sample's polarisation ( P) and magnetisation ( M) as α α ∝ k • ( P × M). This difference is typically very small ( 1 %), because of the small magnitude of the microscopic source for the effect. The origin can be an optical interference between electric-and magnetic-dipole transitions, which usually have different resonance frequencies and oscillator strengths. Yet, if the two amplitudes corresponding to the resonances can be matched by the

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Effect of magnesium oxide adhesion layer on resonance behavior of plasmonic nanostructures

Cited by 9 publications

References 35 publications

High performance surface plasmon resonance based sensor using black phosphorus and magnesium oxide adhesion layer

High performance surface plasmon resonance based sensor using black phosphorus and magnesium oxide adhesion layer

Toroidal Order in Magnetic Metamaterials

Optical Effects in Artificial Magneto-Toroidal Crystals

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