Remote sensing of tetrachloroethene with a micro-fibre optical gas sensor based on surface plasmon resonance spectroscopy

Niggemann, Matthias; Katerkamp, Andreas; Pellmann, Maria; Bolsmann, Peter; Reinbold, Jörg; Cammann, Karl

doi:10.1016/s0925-4005(97)80010-x

Cited by 57 publications

(12 citation statements)

References 4 publications

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“…It has been shown that by selecting appropriate structural parameters, the sensor can achieve a sensitivity of 4300 nm/RIU (resolution of with regards to wavelength interrogation) and a FWHM of 213 nm. With regards to sensitivity, the performance of the proposed sensor is comparable to [8][9][10][11] in addition to the waveguide SPR sensors reviewed in [6]. Furthermore, the sensitivity of the proposed sensor is comparatively higher than the spectral interrogation sensitivity reported in [18], which is based on silicon -on insulator technology.…”

Section: Resultsmentioning

confidence: 78%

“…Early development in fiber optic SPR sensors include a plastic-clad silica fiber with partly removed cladding [8,9], a side-polished optical fiber [10], a tapered single-mode fiber [11] and a tip-polished fiber [12]. Some recent advances include photonic crystal fiber and waveguide SPR sensors [13], lapped D-shaped fiber sensors [14] and tapered fibre optic sensors [15].In addition, concepts such as multi-pass interferometry in phase-sensitive SPR sensors [16] and the development of sensors based on chalcogenide prism and aluminum, provide options in realization of high performance SPR biosensors [17].…”

Section: Introductionmentioning

confidence: 99%

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Design and optimization of a novel surface plasmon resonance biosensor based on Otto configuration

Akowuah¹,

Gorman²,

Haxha³

2009

Opt. Express

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Abstract:A theoretical study on a novel planar waveguide surface Plasmon Biosensor is presented in this paper. The proposed biosensor has a configuration similar to the Otto excitation mechanism for surface Plasmon polaritons. The performance of the device with respect to key system parameters such as gap -width and device length is investigated using an eigenmode solver with perfectly matched layers (PML). Device resolution of 2.3×10-6 RIU has been demonstrated for an aqueous analyte.

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Section: Resultsmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Design and optimization of a novel surface plasmon resonance biosensor based on Otto configuration

Akowuah¹,

Gorman²,

Haxha³

2009

Opt. Express

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“…The evanescent field can be reached by the narrowing of the fiber cross section in the tapered region. Another approach, compatible with the mentioned mechanisms, is based on modifying the geometry of the sensing head (tip layout) to optimize the dynamic range and sensitivity [28][29][30]. These configurations are supported by beveling the distal end of the fiber probe, such as a chisel-tipped probe, where the top and bottom of the probe are polished to the same angle.…”

Section: Introductionmentioning

confidence: 99%

Analysis of a plasmonic based optical fiber optrode with phase interrogation

et al. 2016

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Optical fiber optrodes are attractive sensing devices due to their ability to perform point measurement in remote locations. Mostly, they are oriented to biochemical sensing, quite often supported by fluorescent and spectroscopic techniques, but with the refractometric approach considered as well when the objective is of high measurement performance, particularly when the focus is on enhancing the measurand resolution. In this work, we address this subject, proposing and analyzing the characteristics of a fiber optic optrode relying on plasmonic interaction. A linearly tapered optical fiber tip is covered by a double overlay: the inner one -a silver thin film and over ita dielectric layer, with this combination allowing to achieve, at a specific wavelength range, surface plasmonic resonance (SPR) interaction sensitive to the refractive index of the surrounding medium. Typically, the interrogation of the SPR sensing structures is performed, considering spectroscopic techniques, but in principle, a far better performance can be obtained, considering the reading of the phase of the light at a specific wavelength located within the spectral plasmonic resonance. This is the approach which is studied here in the context of the proposed optical fiber optrode configuration. The analysis performed shows the combination of a silver inner layer with a dielectric titanium oxide layer with tuned thicknesses enables sensitive phase reading and allows the operation of the fiber optic optrode sensor in the third telecommunication wavelength window.

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“…58 In this particular design, the transducer consists of a multimode fiber, where the cladding is removed at the end of the fiber. The exposed core is coated with a thin silver layer; additionally, a chromium-mirror is fixed at the fiber end.…”

mentioning

confidence: 99%

“…In addition, the sensor has a long term stability of more than 5 months, and its response is linear over the range of 20 and 2200 ppm of tetrachloroethane. The sensor has a detection limit of 15 ppm of tetrachloroethane, and a response time of less than 2.5 s. 58 A fiber-optic evanescent fluorosensor was developed using polyclonal antibodies (Abs) isolated from rabbit immune serum and immobilized covalently onto quartz fibers. A fluorescent conjugate of the target compound which fluoresces when bound to the antibody, was used as the optical signal generator.…”

mentioning

confidence: 99%