Modeling Electrical Properties of Gold Films at Infrared Frequency Using FDTD Method

Qiang, Rui; Chen, Richard L.; Chen, Ji

doi:10.1023/b:ijim.0000042759.67055.7a

Cited by 39 publications

(26 citation statements)

References 10 publications

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“…FDTD techniques developed for the optical range tend to fit the dielectric response of the metal to the experimentally determined dielectric permittivity using a Drude model [26] or more sophisticated models (for example in Lumerical). However, this may create problems (see further).…”

Section: Materials Characteristicsmentioning

confidence: 99%

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Computational Electromagnetics in Plasmonics

Vandenbosch¹

2012

Plasmonics - Principles and Applications

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Section: Materials Characteristicsmentioning

confidence: 99%

“…In the publications that do treat the numerical modeling of plasmonic structures as such, mainly the FDTD or the FEM technique is applied [37], [38]. Very few papers consider the IE-MoM technique, and if they do, it is the Surface IE technique [39], [40], [41].…”

Section: Other Non-commercial Tools Found In Literaturementioning

confidence: 99%

Computational Electromagnetics in Plasmonics

Vandenbosch¹

2012

Plasmonics - Principles and Applications

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“…After analyzing the background image, the white Gauss noise with signal noise ratio (SNR) 20 db is added into projections [12][13].…”

Section: White Gauss Noisementioning

confidence: 99%

Research on the SR-CT technique in microstructures testing during dynamic processes

Xiao-fang

et al. 2011

J. Phys.: Conf. Ser.

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Abstract. Synchrotron Radiation X-ray Computerized Topography (SR-CT) is an advanced technique, which is a unique combination of synchrotron radiation and computerized topography technique. Different from other conventional materials testing instruments, SR-CT technique has its advantages, such as non-destructive and real-time, etc. Therefore, it may be a powerful materials testing method in dynamic processes. However, there are also some actual problems. The high quality of the reconstructed images needs larger number of projections and much projection collecting time, but it is not allowed in dynamic processes because of sample evolution. Moreover, the noise in the projection images and some other factors reduced the reconstruction quality. The purpose of this work is to apply SR-CT technique in dynamic processes. A numerical simulation, including a generalized noise model considered the real situation of SR-CT experiment, different from the previous work, of SR-CT experiment was performed in order to carry out a quantitative evaluation on actual SR-CT experiment. A kind of iteration method was proposed to improve the quality of reconstructed images. The quality of reconstructed images was evaluated by three image evaluation parameters. The result shows that all three image evaluation parameters have obvious improvement by iteration method. Images from real SR-CT experiment were treated by iteration method to verify the effectiveness of iteration method, and high quality images can be obtained. The iteration method is appropriate and can be applied in the SR-CT experiment in microstructures testing during dynamic processes.

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“…The optical properties of the gold layer are taken from [24]. In all simulations, the thickness of the gold layer is at least four times of the skin depth (25 nm) of gold layer in the mid IR range [25]. Subsequently, the underlying layers are not simulated.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Responsivity of Uncooled Infrared Detectors Using Plasmonics for High-Performance Infrared Spectroscopy

Ahmed¹,

Kim²,

Kim³

et al. 2017

Preprint

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Abstract:A lead zirconate titanate [PZT;Pb(Zr0.52Ti0.48)O3] layer embedded infrared (IR) detector decorated with wavelength-selective plasmonic crystals has been investigated for high-performance non-dispersive infrared (NDIR) spectroscopy. A plasmonic IR detector with an enhanced IR absorption band has been designed based on numerical simulations, fabricated by conventional microfabrication techniques, and characterized with a broadly tunable quantum cascade laser. The enhanced responsivity of the plasmonic IR detector at specific wavelength band has improved the performance of NDIR spectroscopy and pushed the limit of detection (LOD) by an order of magnitude. In this paper, a 13 fold enhancement in the LOD of a methane gas sensing using NDIR spectroscopy is demonstrated with the plasmonic IR detector.

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Modeling Electrical Properties of Gold Films at Infrared Frequency Using FDTD Method

Cited by 39 publications

References 10 publications

Computational Electromagnetics in Plasmonics

Computational Electromagnetics in Plasmonics

Research on the SR-CT technique in microstructures testing during dynamic processes

Enhancing the Responsivity of Uncooled Infrared Detectors Using Plasmonics for High-Performance Infrared Spectroscopy

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