Surface plasmon resonance sensors based on diffraction gratings and prism couplers: sensitivity comparison

Homola, Jiřı́; Koudela, Ivo; Yee, Sinclair S.

doi:10.1016/s0925-4005(98)00322-0

Cited by 607 publications

(342 citation statements)

References 16 publications

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“…For example, nanohole arrays in metal films with various configurations in terms of film thickness, hole size, periodicity and pattern exhibited distinct optical response and sensitivities [7][8][9][10]. Sensitivity expressions for regular and chirped diffraction gratings were derived with wavelength shifts being a function of the local structures and diffraction orders [11,12]. However, most of current results were associated with the single arrangement of individual exciting mechanism, thereby hindering the direct comparisons across various configurations.…”

Section: Introductionmentioning

confidence: 95%

Universal sensitivity of propagating surface plasmon resonance in nanostructure arrays

Jia

Yang

2015

Opt. Express

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Creative Commons LicensingOSA is aware that some authors, as a condition of their funding, must publish their work under a Creative Commons license. We therefore offer a CC BY license for authors who indicate that their work is funded by agencies that we have confirmed have this requirement. Authors must enter their funder(s) during the manuscript submission process. At that point, if appropriate, the CC BY license option will be available to select for an additional fee.Any subsequent reuse or distribution of content licensed under CC BY must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Abstract: A universal, geometry-independent sensitivity is derived by using a black box model of surface plasmon excitation for two-dimensional nanostructures. It is shown that the resonant wavelength of surface plasmons and dielectric property of interfacial materials dominate the sensitivity. Sensitivity data of nanostructure arrays, widely collected from independent research groups, comply well with our results. This analysis provides a conceptual and intuitive insight into the plasmonic sensing, covering various excitation arrangements under the same umbrella. The universal sensitivity offers a quantitative tool to evaluate and predict the performance of plasmonic sensors. ©2015 Optical Society of America

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Section: Introductionmentioning

confidence: 95%

Universal sensitivity of propagating surface plasmon resonance in nanostructure arrays

Jia

Yang

2015

Opt. Express

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“…An additional advantage of this method is the flexibility of being able to change the detection range and the excitation angle by changing the period and the duty ratio of the grating. Homola et al investigated the sensitivity of SPR to the grating structure and the amount of processable information, confirming the high information processing capability of diffraction grating structures [7] [8]. In addition, a study of the target localization showed that the differences in the region of the contact between the target medium and the sensor affect the sensitivity [9].…”

Section: Introductionmentioning

confidence: 92%

Detecting High-Refractive-Index Media Using Surface Plasmon Sensor with One-Dimensional Metal Diffraction Grating

Motogaito¹,

Mito²,

Miyake³

et al. 2016

OPJ

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We experimentally detect high-refractive-index media (n > 1.5) using a surface plasmon resonance (SPR) sensor with a diffraction grating. While SPR sensors are generally based on the attenuated total reflection method using metal films, here, we focus on a method using a diffraction grating, which can detect relatively higher refractive-index media and is suitable for device miniaturization. In this study, we used the rigorous coupled-wave analysis method to simulate the dependence of the reflectance on an incident angle for media with refractive index values up to 1.700. In the experiment, a medium (n = 1.660 -1.700) was successfully detected using this grating. Under the conditions of the grating (period: 600 nm, Au thickness: 40 nm) using a red laser (λ: 635 nm), a sharp decline in the reflectance and a rise in the transmittance at certain angles were confirmed, demonstrating the extraordinary transmission enabled by SPR. Because excitation angles changed with changes in the refractive index, we concluded that this method can be applied to sensors that detect high-refractive-index media.

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“…6a, the refractive index measurement can be performed in the angular interrogation scheme using a simple silicon photodiode and a simple laser diode. Although less sensitive compared to prisms in a wavelength interrogation-type measurement [21], the advantage of the use of grating coupled plasmon resonance for biomolecular sensors is that high-index substrates or prisms need not be used, and measurements can be performed at normal incidence. In this scheme, optical discs provide a disposable alternative for high-sensitivity plasmon resonance biomolecular sensors.…”

Section: Observation Of Plasmon Resonances In Fluidsmentioning

confidence: 99%

Tuning Optical Discs for Plasmonic Applications

et al. 2009

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We present simple physical and chemical procedures that allow tuning and modification of the topography of gratings present in optical storage discs into geometries optimal for grating coupled plasmon resonance excitation. After proper metal coating, the tuned surfaces exhibit sharp plasmon resonances that can be excited at wavelengths ranging from 260 nm to over 2.7 μm with relatively high quality factors. As an immediate exemplary application, use of such optimized gratings in aqueous medium for refractive index measurement is demonstrated.

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Surface plasmon resonance sensors based on diffraction gratings and prism couplers: sensitivity comparison

Cited by 607 publications

References 16 publications

Universal sensitivity of propagating surface plasmon resonance in nanostructure arrays

Universal sensitivity of propagating surface plasmon resonance in nanostructure arrays

Detecting High-Refractive-Index Media Using Surface Plasmon Sensor with One-Dimensional Metal Diffraction Grating

Tuning Optical Discs for Plasmonic Applications

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