scholarly journals Study of plasmon resonance in a gold nanorod with an LC circuit model

2009 ◽  
Vol 17 (8) ◽  
pp. 6407 ◽  
Author(s):  
Cheng-ping Huang ◽  
Xiao-gang Yin ◽  
Huang Huang ◽  
Yong-yuan Zhu
Keyword(s):  
Plasmon Resonance ◽  
Circuit Model ◽  
Gold Nanorod ◽  
Lc Circuit

A gold nanorod-based localized surface plasmon resonance platform for the detection of environmentally toxic metal ions

The Analyst ◽  
2015 ◽  
Vol 140 (8) ◽  
pp. 2540-2555 ◽  
Author(s):  
Subramaniam Jayabal ◽  
Alagarsamy Pandikumar ◽  
Hong Ngee Lim ◽  
Ramasamy Ramaraj ◽  
Tong Sun ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Metal Ions ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Toxic Metal ◽  
Gold Nanorod ◽  
Localized Surface Plasmon ◽  
Toxic Metal Ions ◽  
Recent Advances

This review describes recent advances in gold nanorod-based localized surface plasmon resonance sensors for detection of environmentally toxic metal ions.

Parametric Investigation and Analysis of an Electric-LC Resonator by Using LC Circuit Model

2020 ◽  
Vol 35 (10) ◽  
pp. 1113-1118
Author(s):  
Han Xiong ◽  
Xiu-Ming Li
Keyword(s):  
Theoretical Calculations ◽  
Normal Incidence ◽  
Circuit Model ◽  
Critical Parameters ◽  
Left Hand ◽  
Resonance Frequencies ◽  
Lc Circuit ◽  
Lc Resonator ◽  
Specific Frequency ◽  
Lc Resonators

Electric-LC resonators (ELCs) metamaterials, as a kind of common structures, have been extensively investigated from microwave to terahertz frequencies. In this paper, we present a LC circuit model to analyze electric-LC resonator. With the reliable and closed formulas of the effective inductance and capacitance, the expressions of electric and magnetic resonance frequencies were obtained, which is suitable to discuss the resonance characteristic under the normal incidence case. Meanwhile, the mutual relationships among the permittivity, permeability, refractive index, and structure parameters can be explored by using the obtained expressions. Numerical simulations and theoretical calculations reveal that the width and length of the gaps are some of the critical parameters determining the resonator frequency of the example metamaterial. This study provides valuable information for designing the desired left-hand metamaterial at some specific frequency points.

In situ tuning of gold nanorod plasmon through oxidative cyanide etching

2016 ◽  
Vol 18 (23) ◽  
pp. 15619-15624 ◽  
Author(s):  
Aquiles Carattino ◽  
Saumyakanti Khatua ◽  
Michel Orrit
Keyword(s):  
Gold Nanorods ◽  
Plasmon Resonance ◽  
Photothermal Therapy ◽  
Red Shift ◽  
Gold Nanorod

Single gold nanorods exhibit great opportunities for bio-sensing, enhanced spectroscopies and photothermal therapy. We show how to red-shift the plasmon resonance of single nanorods controllably.

Predicting Multi-Order Magnetic Polaritons Resonance in SiC Slit Arrays by Mutual Inductor–Inductor–Capacitor Circuit Model

2020 ◽  
Vol 142 (7) ◽  
Author(s):  
Yanming Guo ◽  
Bo Xiong ◽  
Yong Shuai
Keyword(s):  
Electromagnetic Field ◽  
Electromagnetic Waves ◽  
Fdtd Method ◽  
Circuit Model ◽  
Radiative Properties ◽  
Field Calculation ◽  
Thermal Radiative Properties ◽  
Resonance Frequencies ◽  
Lc Circuit ◽  
Calculation Results

Abstract Magnetic polariton (MP) that couples electromagnetic waves with magnetic excitation can be predicted by equivalent inductor–capacitor (LC) circuit model. However, when the resonance frequencies of MP and surface phonon polariton (SPhP) is close, the absorption and transmission peaks predicted by LC circuit model are far different from solving electromagnetic field calculation results. In this work, absorption and transmission enhancements with a SiC slit array are theoretically demonstrated within the SiC phonon absorption band with finite difference time-domain (FDTD) method. The interactions between SPhP and MP are confirmed by electromagnetic field distributions. Mutual inductor–inductor–capacitor (MLC) circuit model is used to predict the multiorder MP resonance conditions, and the coupling between MP and SPhP is treated as a mutual inductor in MLC model. The geometric effects of SiC slit arrays are investigated and MLC circuit model works well. This study may contribute to the design and prediction of thermal radiative properties and micro-/nanostructure metamaterials thermal radiative properties database building.

Gold nanorod etching-based multicolorimetric sensors: strategies and applications

2019 ◽  
Vol 7 (16) ◽  
pp. 4610-4621 ◽  
Author(s):  
Honghong Rao ◽  
Xin Xue ◽  
Hongqiang Wang ◽  
Zhonghua Xue
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Gold Nanorod ◽  
Localized Surface Plasmon ◽  
Visible Range ◽  
Colorimetric Sensors

Gold nanorod (AuNR) colorimetric sensors have emerged as powerful tools in various chemosensing and biosensing applications due to their localized surface plasmon resonance (LSPR) extinction in the visible range.

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