Surface plasmon resonance sensors based on uniform-waist tapered fibers in a reflective configuration

Esteban, Óscar; Díaz-Herrera, Natalia; Navarrete, María-Cruz; González-Cano, Agustı́n

doi:10.1364/ao.45.007294

Cited by 41 publications

(32 citation statements)

References 19 publications

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“…The introduction of a second dielectric layer has proven to be decisive to control the location of the plasmon resonance, which is very important when moving this resonance outside the usual ranges of refractive indices or wavelengths [23,24]. We depict the fabrication process, characterize the transducers, and compare its performance in terms of polarization dependence with other devices.…”

Section: Spr and Polarizationmentioning

confidence: 99%

A Polarization-Independent SPR Fiber Sensor

et al. 2009

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The resonance of surface plasma waves in metallic layers is a strongly polarization-dependent phenomenon by the very nature of the physical effect responsible of that resonance. This implies the necessity of polarization-controlling elements to be added to any operative surface-plasmon-resonance-based sensor. A fully symmetrical, circular-section double deposition of a metallic and a dielectric layer on a uniform-waist tapered optical fiber (SymDL-UWT) permits us to completely eliminate the dependence on polarization of the plasmon excitation, with the corresponding operative advantages and basic theoretical consequences. We depict the fabrication process of these transducers, which is based on the use of a simple and efficient rotating element developed by us, and show the characteristics of the produced devices. No such device has been depicted up to date. As our experimental results show, this kind of devices can be considered a very good option for the development of simple, compact, and efficient chemical and biological sensors.

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Section: Spr and Polarizationmentioning

confidence: 99%

A Polarization-Independent SPR Fiber Sensor

et al. 2009

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“…In this case the coupling happens between the light propagating through the long taper and a surface plasmon [85]. Different materials have been coated along the taper surface to form surface plasmon sensors for temperature, refractive index and bio-sensing measurements [86][87][88][89][90]. Low-loss solgel-derived silica films were also successfully deposited on the uniform waist of a tapered fiber [91], which has the ability to dope with rare earths and other materials, leading to a new class of all-fiber devices for sensing applications.…”

Section: Adiabatic Long Tapermentioning

confidence: 99%

Recent Developments in Micro-Structured Fiber Optic Sensors

Chen

et al. 2017

Fibers

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Recent developments in fiber-optic sensing have involved booming research in the design and manufacturing of novel micro-structured optical fiber devices. From the conventional tapered fiber architectures to the novel micro-machined devices by advanced laser systems, thousands of micro-structured fiber-optic sensors have been proposed and fabricated for applications in measuring temperature, strain, refractive index (RI), electric current, displacement, bending, acceleration, force, rotation, acoustic, and magnetic field. The renowned and unparalleled merits of sensors-based micro-machined optical fibers including small footprint, light weight, immunity to electromagnetic interferences, durability to harsh environment, capability of remote control, and flexibility of directly embedding into the structured system have placed them in highly demand for practical use in diverse industries. With the rapid advancement in micro-technology, micro-structured fiber sensors have benefitted from the trends of possessing high performance, versatilities and spatial miniaturization. Here, we comprehensively review the recent progress in the micro-structured fiber-optic sensors with a variety of architectures regarding their fabrications, waveguide properties and sensing applications.

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“…If we take into account that we have shown that a reflective element can be added at the fiber end and that we can develop then a "dip-probe" configuration, where the sensing element has been reduced to very few centimeters and can be remotely interrogated, it is apparent that SPR sensors based in these elements can be very well suited to in situ, realtime measurements. [5] …”

Section: Dl-uwts: What and Whymentioning

confidence: 99%

DL-UWTs: novel devices for chemical and biological sensing

González-Cano

Díaz-Herrera

Navarrete

et al. 2007

Third European Workshop on Optical Fibre Sensors

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Although many optical fiber sensors have been proposed for chemical, environmental or biological measurements, it seems that the potential of this kind of devices has not been fully exploited. In this paper we discuss the possibilities of doubly-deposited uniform-waist tapered fibers (DL-UWTs) for the development of new sensors that can become a new standard in the field of Surface Plasmon Resonance (SPR) based sensors and contribute to the extension of the range of application of fiber technology to the mentioned fields. We also compare different configuration and evaluate some relevant features of DL-UWTs, as the possibility of fully independence of polarization or the excitation of multiple plasmons. SPR NOW (AND TOMORROW?)In the field of chemical and biological analysis, the measurements performed by devices based on the phenomenon of the excitation of surface plasma waves in metallic layers have become a standard, and there are many and varied references where this basic phenomenon is adapted to for the detection of a wide range of substances.[1] This versatility and the fact that the technique has reached its maturity, being now available some commercial systems that work on this basis, must not obscure the fact that some points can still be improved, and that the possibilities that the technology of fiber optics offer have not been fully exploited at all. We find, then, that the presence of fiber-based systems in the important fields of chemical, environmental and biological analysis and control is nowadays too small, in spite of the evident advantages that it can offer in many cases. In this paper we discuss the main features of the existing techniques, pointing at some potential weaknesses and present a whole family of new devices and concepts that can become a new, complementary standard for the development of varied and versatile new sensors.First of all, what is the state of the art in the analysis based on surface plasmon excitation? What we found in most commercial devices and in the references in specialized literature (especially in that directly related to biological research) is attenuated total reflection (ATR) as the mechanism for plasmon excitation in thin metallic layers. It is well known that starting from this basic concept we can build an angularly interrogated refractometer, by using the so-called Kretschmann configuration or similar ones. Always, the characteristics of the plasma waves and the mere possibility of exciting them depend on basically three factors: the angle of incidence of light (always above the critical angle, so an evanescent wave appears as a result of total internal reflection), the wavelength and the refractive index of the medium surrounding the film. This last dependence is what it is used as measuring principle. But (and this is a very important point) plasmons are to be excited only if incident light is TM polarized. This means that we must add to this basic concept at least some polarizing controlling mechanisms. The metallic layer is deposited on the flat surfa...

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Surface plasmon resonance sensors based on uniform-waist tapered fibers in a reflective configuration

Cited by 41 publications

References 19 publications

A Polarization-Independent SPR Fiber Sensor

A Polarization-Independent SPR Fiber Sensor

Recent Developments in Micro-Structured Fiber Optic Sensors

DL-UWTs: novel devices for chemical and biological sensing

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