scholarly journals Plasmon resonance at the interface dielectric - nanocomposite material with superconducting inclusions

2021 ◽  
Vol 2094 (2) ◽  
pp. 022025
Author(s):  
M V Golovkina
Keyword(s):  
Surface Plasmon Resonance ◽  
High Temperature ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Composite Structures ◽  
Fluid Model ◽  
Fourth Power ◽  
Dispersion Characteristics ◽  
Two Fluid Model ◽  
Two Fluid

Abstract This article theoretically considers surface plasmon resonance in composite structures. The features of the surface plasmon resonance arising at the interface with media containing nanoparticles from a high-temperature superconductor are investigated. The dielectric constant of spherical superconducting inclusions is considered taking into account Gorter-Casimir two-fluid model. The temperature dependence of the electrodynamic parameters of the superconductor is taken into account. The two-fluid model, the dependence of the concentration of non-superconducting electrons in a superconductor is often used as the fourth power of temperature nn~T4. In this work, a phenomenological model is used, according to which the electron concentration of non-superconducting electrons in a superconductor is determined by the formula nn~Tγ with γ=1.3÷2. This model is in good agreement with experimental data for high-temperature ceramic superconductors. The dispersion characteristics of surface plasmons arising in a planar structure with a thin nanocomposite superconductor layer are investigated. It is shown that the dispersion characteristics depend significantly on temperature.

Excitation of Surface Plasmon Resonance in Composite Structures Based on Single-Layer Superaligned Carbon Nanotube Films

2013 ◽  
Vol 117 (44) ◽  
pp. 23190-23197 ◽  
Author(s):  
Yinghui Sun ◽  
Kai Liu ◽  
Yimo Han ◽  
Qunqing Li ◽  
Shoushan Fan ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Carbon Nanotube ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Composite Structures ◽  
Single Layer ◽  
Nanotube Films

Localized surface plasmon resonance-enhanced solar-blind Al0.4Ga0.6N MSM photodetectors exhibiting high-temperature robustness

2021 ◽  
Author(s):  
Shuchi Kaushik ◽  
Subhajit Karmakar ◽  
Prashant Bisht ◽  
Che-Hao Liao ◽  
Xiaohang Li ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
High Temperature ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
Chemical Hardness ◽  
Stable Operation ◽  
Solar Blind ◽  
Specific Detectivity

Abstract The appealing properties of tunable direct wide bandgap, high-temperature robustness and chemical hardness, make AlxGa1-xN a promising candidate for fabricating robust solar-blind photodetectors (PDs). In this work, we have utilized the optical phenomenon of localized surface plasmon resonance (LSPR) in metal nanoparticles (NPs) to significantly enhance the performance of solar-blind Al0.4Ga0.6N metal-semiconductor-metal (MSM) PDs that exhibit high-temperature robustness. We demonstrate that the presence of palladium (Pd) NPs leads to a remarkable enhancement by nearly 600, 300, and 462%, respectively, in the photo-to-dark current ratio (PDCR), responsivity, and specific detectivity of the Al0.4Ga0.6N PD at the wavelength of 280 nm. Using the optical power density of only 32 μWcm−2 at −10 V, maximum values of ~3×103,2.7 AW−1, and 2.4×1013Jones are found for the PDCR, responsivity and specific detectivity, respectively. The experimental observations are supported by finite difference time domain (FDTD) simulations, which clearly indicate the presence of LSPR in Pd NPs decorated on the surface of Al0.4Ga0.6N. The mechanism behind the enhancement is investigated in detail, and is ascribed to the LSPR induced effects, namely, improved optical absorption, enhanced local electric field and LSPR sensitization effect. Moreover, the PD exhibits a stable operation up to 400 K, thereby exhibiting the high-temperature robustness desirable for commercial applications.

Development and Characterization of Au−YSZ Surface Plasmon Resonance Based Sensing Materials:  High Temperature Detection of CO

2006 ◽  
Vol 110 (27) ◽  
pp. 13508-13511 ◽  
Author(s):  
George Sirinakis ◽  
Rezina Siddique ◽  
Ian Manning ◽  
Phillip H. Rogers ◽  
Michael A. Carpenter
Keyword(s):  
Surface Plasmon Resonance ◽  
High Temperature ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Temperature Detection

Comparison of sensitivity of the refractometric methods of frustrated total internal reflection and surface plasmon resonance

2020 ◽  
pp. 44-49
Author(s):  
I. N. Pavlov
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Total Internal Reflection ◽  
Resonance Method ◽  
Internal Reflection ◽  
Optical Methods ◽  
Thin Boundary Layer ◽  
Experimental Conditions ◽  
Frustrated Total Internal Reflection

Two optical methods, namely surface plasmon resonance imaging and frustrated total internal reflection, are described in the paper in terms of comparing their sensitivity to change of refractive index of a thin boundary layer of an investigated medium. It is shown that, despite the fact that the theoretically calculated sensitivity is higher for the frustrated total internal reflection method, and the fact that usually in practice the surface plasmon resonance method, on the contrary, is considered more sensitive, under the same experimental conditions both methods show a similar result.

Surface Plasmon Resonance Based Sensitive Immunosensor for Benzaldehyde Detection

2010 ◽  
Vol 130 (7) ◽  
pp. 269-274 ◽  
Author(s):  
Takeshi Onodera ◽  
Takuzo Shimizu ◽  
Norio Miura ◽  
Kiyoshi Matsumoto ◽  
Kiyoshi Toko
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance
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