BOR-FDTD analysis of nonlinear Fiber Bragg grating and distributed Bragg resonator

Mashade, Mohamed B. El; Nady, M.

doi:10.1016/j.optlastec.2011.01.010

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…Fig.1 shows the structure of simulation model, with the incidence light range from 400nm to 800nm.Based on traditional Khretschmann's SPR structure, the gold nanoparticles imprinted polymer film grows between the 50nm gold film and the target analytes (air) .While the role of the polymer film is shifting the SPR wavelength, higher sensitivity is attributed to the nanoparticles. In numerical techniques, the Finite-different time-domain (FDTD) [8,9] method is preferential method to compute the electromagnetic field distribution for its accurate numerical results in problems with complex shapes and structural properties. The FDTD method is a second-order explicit scheme that does not require matrix inversion.…”

Section: Theory and Modelsmentioning

confidence: 99%

Theoretical analyses of localized surface plasmon resonance spectrum with nanoparticles imprinted polymers

Peng

Wang

et al. 2011

SPIE Proceedings

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Optical sensors based on nanoparticles induced Localized Surface Plasmon Resonance are more sensitive to real-time chemical and biological sensing, which have attracted intensive attentions in many fields. In this paper, we establish a simulation model based on nanoparticles imprinted polymer to increase sensitivity of the LSPR sensor by detecting the changes of Surface Plasmon Resonance signals. Theoretical analysis and numerical simulation of parameters effects to absorption peak and light field distribution are highlighted. Two-dimensional simulated color maps show that LSPR lead to centralization of the light energy around the gold nanoparticles, Transverse Magnetic wave and total reflection become the important factors to enhance the light field in our simulated structure. Fast Fourier Transfer analysis shows that the absorption peak of the surface plasmon resonance signal resulted from gold nanoparticles is sharper while its wavelength is bigger by comparing with silver nanoparticles; a double chain structure make the amplitude of the signals smaller, and make absorption wavelength longer; the absorption peak of enhancement resulted from nanopore arrays has smaller wavelength and weaker amplitude in contrast with nanoparticles. These simulation results of the Localized Surface Plasmon Resonance can be used as an enhanced transduction mechanism for enhancement of sensitivity in recognition and sensing of target analytes in accordance with different requirements.

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Section: Theory and Modelsmentioning

confidence: 99%