Investigation of the sensitivity of H-shaped nano-grating surface plasmon resonance biosensors using rigorous coupled wave analysis

Zhang, D.; Wang, P.; Jiao, Xiaojin; Yuan, Guanghui; Zhang, J.; Chen, C.; Ming, Hai; Rao, Ruijian

doi:10.1007/s00339-007-4110-x

Cited by 9 publications

(3 citation statements)

References 12 publications

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“…In another method, one can theoretically investigate an SPR structure based on angle scanning by a rigorous coupled wave analysis (RCWA), which is frequently applied to grating-coupled type SPR structures [62][63][64].…”

Section: Principle Of Surface Plasmon Resonance Fiber Sensorsmentioning

confidence: 99%

Current status of micro- and nano-structured optical fiber sensors

Lee

Roh

Park

2009

Optical Fiber Technology

345

175

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Section: Principle Of Surface Plasmon Resonance Fiber Sensorsmentioning

confidence: 99%

Current status of micro- and nano-structured optical fiber sensors

Lee

Roh

Park

2009

Optical Fiber Technology

345

175

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“…The application of metallic diffraction grating for SPR sensing is advocated by Cullen et al [11]. Since then, SPR sensors based on grating are studied as an alternative to ATR systems [12][13][14][15]. In this work, we design a novel SPR hydrogen sensor using a Pd-coated gold sub-wavelength grating.…”

Section: Introductionmentioning

confidence: 99%

Surface plasmon resonance hydrogen sensor based on metallic grating with high sensitivity

Lu²,

et al. 2008

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High sensitivity is obtained at larger resonant incident angle if negative diffraction order of metallic grating is used to excite the surface plasmon. A highly sensitive grating-based surface plasmon resonance (SPR) sensor is designed for the hydrogen detection. A thin palladium (Pd) film deposited on the grating surface is used as transducer. The influences of grating period and the thickness of Pd on the performance of sensor are investigated using rigorous coupled-wave analysis (RCWA) method. The sensitivity as well as the width of the SPR curves and reflective amplitude is considered simultaneously for designing the grating-based SPR hydrogen sensor, and a set of optimized structural parameters is presented. The performance of grating-based SPR sensor is also compared with that of conventional prism-based SPR sensor.

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“…In the present study, the RCWA algorithm was used to calculate the directional-hemispherical reflectance of the silicon diffraction grating. Owing to its effectiveness in solving Maxwell's equations, RCWA has been used extensively for the analysis of radiative properties of grooved surfaces [19,20] along with some recent works in studying the sensitivity of various SPR couplers [21][22][23]. In the RCWA algorithm, the electric and magnetic fields in the incident, grating, and transmitted media are expanded as a summation of multiple diffraction orders.…”

Section: Modelingmentioning

confidence: 99%

Design analysis of doped-silicon surface plasmon resonance immunosensors in mid-infrared range

2010

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This paper reports the design analysis of a microfabricatable mid-infrared (mid-IR) surface plasmon resonance (SPR) sensor platform. The proposed platform has periodic heavily doped profiles implanted into intrinsic silicon and a thin gold layer deposited on top, making a physically flat grating SPR coupler. A rigorous coupled-wave analysis was conducted to prove the design feasibility, characterize the sensor's performance, and determine geometric parameters of the heavily doped profiles. Finite element analysis (FEA) was also employed to compute the electromagnetic field distributions at the plasmon resonance. Obtained results reveal that the proposed structure can excite the SPR on the normal incidence of mid-IR light, resulting in a large probing depth that will facilitate the study of larger analytes. Furthermore, the whole structure can be microfabricated with well-established batch protocols, providing tunability in the SPR excitation wavelength for specific biosensing needs with a low manufacturing cost. When the SPR sensor is to be used in a Fourier-transform infrared (FTIR) spectroscopy platform, its detection sensitivity and limit of detection are estimated to be 3022 nm/RIU and ~70 pg/mm(2), respectively, at a sample layer thickness of 100 nm. The design analysis performed in the present study will allow the fabrication of a tunable, disposable mid-IR SPR sensor that combines advantages of conventional prism and metallic grating SPR sensors.

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Investigation of the sensitivity of H-shaped nano-grating surface plasmon resonance biosensors using rigorous coupled wave analysis

Cited by 9 publications

References 12 publications

Current status of micro- and nano-structured optical fiber sensors

Current status of micro- and nano-structured optical fiber sensors

Surface plasmon resonance hydrogen sensor based on metallic grating with high sensitivity

Design analysis of doped-silicon surface plasmon resonance immunosensors in mid-infrared range

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