Hydrogen sensor based on metallic photonic crystal slabs

Nau, D.; Seidel, Andreas; Orzekowsky, Regina; Lee, S.-H.; Deb, S. K.; Gießen, Harald

doi:10.1364/ol.35.003150

Cited by 54 publications

(33 citation statements)

References 14 publications

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“…So they neither generate sparks nor rely on heat exchange and have no risk of gas ignition. With the development of optoelectronic technology and micromachining technology, more and more new work such as sensors based on fiber grating [6], [7], evanescent field [8], [9], metallic photonic crystal structures [10] and surface plasmon Manuscript resonance [11]- [13] are springing up. However, some of them have an all-fiber sensing system but a low sensitivity, while some others own a high sensitivity but introducing bulk-optic components which may introduce instability to optical system.…”

Section: Introductionmentioning

confidence: 99%

An All-Fiber Reflective Hydrogen Sensor Based on a Photonic Crystal Fiber In-Line Interferometer

et al. 2014

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A new method based on introducing a photonic crystal fiber (PCF) in-line interferometer for hydrogen sensing is demonstrated. One end-face of the PCF and part of the outer-face of the fiber are plated with a thin palladium film by magnetron sputtering, while the other end is connected to the optical path. Therefore, a set of reflection-type all-fiber hydrogen sensor system is accomplished. Hydrogen concentration from 0% to 5% was detected in the experiment and the related interferometric resonant wavelength-shift was recorded. The maximum wavelength shift is over 1.2 nm. The whole system has an all-fiber optical path without any bulk-optic components, and this design obtains a high level of integration, a high stability, and low production costs.Index Terms-Photonic crystal fiber in-line interferometer, reflective, wavelength-shift, hydrogen sensor.

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Section: Introductionmentioning

confidence: 99%

An All-Fiber Reflective Hydrogen Sensor Based on a Photonic Crystal Fiber In-Line Interferometer

et al. 2014

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“…In this emergent hydrogen economy [1], the reliable and sensitive detection of hydrogen is crucial to ensure the safety of industrial workers and consumers alike [2]. One possible solution to fulfill these requirements is an optical hydrogen sensor based on plasmonic palladium nanostructures [3][4][5]. The optical excitation and readout minimizes the risk of self-ignition, while the plasmonic palladium structures provide a highly sensitive and hydrogen-specific detection method.…”

Section: Introductionmentioning

confidence: 99%

Long-term stability of capped and buffered palladium-nickel thin films and nanostructures for plasmonic hydrogen sensing applications

Strohfeldt¹,

Tittl²,

Gießen³

2013

Opt. Mater. Express

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Abstract:One of the main challenges in optical hydrogen sensing is the stability of the sensor material. We found and studied an optimized material combination for fast and reliable optical palladium-based hydrogen sensing devices. It consists of a palladium-nickel alloy that is buffered by calcium fluoride and capped with a very thin layer of platinum. Our system shows response times below 10 s and almost no short-term aging effects. Furthermore, we successfully incorporated this optimized material system into plasmonic nanostructures, laying the foundation for a stable and sensitive hydrogen detector.

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“…Sensitive material such as Pd alloys, Pd nanoparticles oxide materials ðWO 3 ; Pd 2 VO 5 Þ, or Mg alloys with a cap layer of Pd could be envisioned. For example, Nau et al reported that hydrogen sensor is implemented with the change of optical properties of waveguide layer by gasochromic mechanisms [23] and tungsten trioxide ðWO 3 Þ is used as a waveguide layer below a thin metal grating. Our designed structure is also expected to work as a sensitive hydrogen sensor by substituting dielectric layer for tungsten trioxide.…”

Section: Resultsmentioning

confidence: 99%

Generation of Multiple Plasmon Resonances in a Nanochannel

Peng

Liang

et al. 2013

IEEE Photonics J.

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In this paper, we investigate the coupling of surface plasmon based on Kretschmann configuration (KC) to localized and delocalized surface plasmon modes supported by metallic nanowire grating (MG) at the oblique incidence. The designed structure consists of MG deposited on a substrate positioned upside down above a conventional KC at a certain distance. Mode coupling and resonant interactions between KC and MG create two new hybrid plasmon modes with narrow bandwidths and unique spectra features, resulting in two obvious dips in the reflection spectrum. Although both dips respond nonlinearly to the refractive index (RI) of the dielectric layer, surprisingly, the sum of two resonance wavelengths has a good linear approximation in a wider RI range. The simultaneous measurement of two resonance dips makes it more attractive as a surface plasmon resonance analysis technology, which is valuable for high-sensitivity optical sensors.

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Hydrogen sensor based on metallic photonic crystal slabs

Cited by 54 publications

References 14 publications

An All-Fiber Reflective Hydrogen Sensor Based on a Photonic Crystal Fiber In-Line Interferometer

An All-Fiber Reflective Hydrogen Sensor Based on a Photonic Crystal Fiber In-Line Interferometer

Long-term stability of capped and buffered palladium-nickel thin films and nanostructures for plasmonic hydrogen sensing applications

Generation of Multiple Plasmon Resonances in a Nanochannel

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