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D-shape polymer optical fibres for surface plasmon resonance sensing

K. Gasior T. Martynkien G. Wojcik P. Mergo W. Urbanczyk

Opto-Electronics Review | 2016 | vol. 24 | No 4 | 209-215

Keywords surface plasmons fibre optics sensors polymer waveguides

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Abstract

We experimentally studied three different D-shape polymer optical fibres with an exposed core for their applications as surface plasmon resonance sensors. The first one was a conventional D-shape fibre with no microstructure while in two others the fibre core was surrounded by two rings of air holes. In one of the microstructured fibres we introduced special absorbing inclusions placed outside the microstructure to attenuate leaky modes. We compared the performance of the surface plasmon resonance sensors based on the three fibres. We showed that the fibre bending enhances the resonance in all investigated fibres. The measured sensitivity of about 610 nm/RIUfor the refractive index of glycerol solution around 1.350 is similar in all fabricated sensors. However, the spectral width of the resonance curve is significantly lower for the fibre with inclusions suppressing the leaky modes.

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Authors and Affiliations

K. Gasior

T. Martynkien

G. Wojcik

P. Mergo

W. Urbanczyk

D-shape polymer optical fibres for surface plasmon resonance sensing

K. Gasior T. Martynkien G. Wojcik P. Mergo W. Urbanczyk

Opto-Electronics Review | 2017 | vol. 25 | No 1 | 1-5

Keywords Surface plasmons Fibre optics sensors Polymer waveguides

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Abstract

We experimentally studied three different D-shape polymer optical fibres with an exposed core for their applications as surface plasmon resonance sensors. The first one was a conventional D-shape fibre with no microstructure while in two others the fibre core was surrounded by two rings of air holes. In one of the microstructured fibres we introduced special absorbing inclusions placed outside the microstructure to attenuate leaky modes. We compared the performance of the surface plasmon resonance sensors based on the three fibres. We showed that the fibre bending enhances the resonance in all investigated fibres. The measured sensitivity of about 610 nm/RIU for the refractive index of glycerol solution around 1.350 is similar in all fabricated sensors. However, the spectral width of the resonance curve is significantly lower for the fibre with inclusions suppressing the leaky modes.

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Authors and Affiliations

K. Gasior

T. Martynkien

G. Wojcik

P. Mergo

W. Urbanczyk

New Surface-Plasmon-Polariton-Like Acoustic Surface Waves at the Interface Between Two Semi-Infinite Media

Piotr Kiełczyński

Archives of Acoustics | 2022 | vol. 47 | No 3 | 363-371 | DOI: 10.24425/aoa.2022.142010

Keywords shear horizontal acoustic waves surface plasmon polaritons phase velocity group velocity Poyntingvector

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Abstract

This paper presents theory of new shear horizontal (SH) acoustic surface waves that propagate along the interface of two semi-infinite elastic half-spaces, one of which is a conventional elastic medium and a second one an elastic metamaterial with a negative and frequency dependent shear elastic compliance.
This new surface waves have only one transverse component of mechanical displacement, which has a maximum at the interface and decays exponentially with distance from the interface. Similar features are also shown by the acoustic shear horizontal Maerfeld-Tournois surface waves propagating at the interface of two semi-infinite elastic media due to the piezoelectric effect that should occur in at least one semi-space.
The proposed new shear horizontal acoustic surface waves exhibit also strong formal similarities with the electromagnetic surface waves of the surface plasmon polariton (SPP) type, propagating along a metal-dielectric planar interface. In fact, the new shear horizontal elastic surface waves possess a large number of properties that are inherent for the SPP electromagnetic surface waves, such as strong subwavelength concentration of the wave field in the proximity of the guiding interface, low phase and group velocity etc. As a result, the new shear horizontal acoustic surface waves can find applications in sensors with extremely high sensitivity, employed in measurements of various physical parameters, such as viscosity of liquids, as well as in biosensors, chemosensors, or a near field acoustic microscopy (subwavelength imaging) and miniaturized devices of microwave acoustics.

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Bibliography

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Authors and Affiliations

Piotr Kiełczyński

Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland

Rigorous optical modelling of long-wavelength infrared photodetector with 2D subwavelength hole array in gold film

Andrzej Janaszek Piotr Wróbel Maciej Dems Omer Ceylan Yasar Gurbuz Łukasz Kubiszyn Józef Piotrowski Rafał Kotyński

Opto-Electronics Review | 2024 | 32 | 1 | e148831 | DOI: 10.24425/opelre.2024.148831

Keywords plasmonics infrared detector enhanced absorption surface plasmon polariton Fano resonance Sommerfeld-Zenneck wave

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Abstract

The quantum efficiency of an InAs/InAsSb type-II superlattice (T2SL) high operating temperature (HOT) long-wavelength infrared (LWIR) photodetector may be significantly improved by integrating a two-dimensional subwavelength hole array in a metallic film (2DSHA) with the detector heterostructure. The role of the metallic grating is to couple incident radiation into surface plasmon polariton (SPP) modes whose field overlaps the absorber region. Plasmon-enhanced infrared photodetectors have been recently demonstrated and are the subject of intensive research. Optical modelling of the three-dimensional detector structure with subwavelength metallic components is challenging, especially since its operation depends on evanescent wave coupling. Our modelling approach combines the 3D finite-difference time-domain method (FDTD) and the rigorous coupled wave analysis (RCWA) with a proposed adaptive data-point selection for calculation time reduction. We demonstrate that the 2DSHA-based detector supports SPPs in the Sommerfeld-Zenneck regime and waveguide modes that both enhance absorption in the active layer.

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Authors and Affiliations

Andrzej Janaszek

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Piotr Wróbel

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Maciej Dems

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Omer Ceylan

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Yasar Gurbuz

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Łukasz Kubiszyn

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Józef Piotrowski

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Rafał Kotyński

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Janaszek, Andrzej :VIGO Photonics, Poznańska 129/133, 05-850 Ożarów Mazowiecki, Poland
Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
Institute of Physics, Lodz University of Technology, Wólczańska 217/221, 93-005 Łódź, Poland
Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, 34956 Istanbul, Turkey
Kubiszyn, Łukasz :VIGO Photonics, Poznańska 129/133, 05-850 Ożarów Mazowiecki, Poland
Piotrowski, Józef :VIGO Photonics, Poznańska 129/133, 05-850 Ożarów Mazowiecki, Poland

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D-shape polymer optical fibres for surface plasmon resonance sensing

Abstract

Authors and Affiliations

D-shape polymer optical fibres for surface plasmon resonance sensing

Abstract

Authors and Affiliations

New Surface-Plasmon-Polariton-Like Acoustic Surface Waves at the Interface Between Two Semi-Infinite Media

Abstract

Bibliography

Authors and Affiliations

Rigorous optical modelling of long-wavelength infrared photodetector with 2D subwavelength hole array in gold film

Abstract

Authors and Affiliations