Surface Plasmon Resonance-Based Fiber Optic Sensor for the Detection of Low Concentrations of Ammonia Gas

Mishra, Satyendra; Bhardwaj, Shivani; Gupta, Banshi D.

doi:10.1109/jsen.2014.2356251

Cited by 57 publications

(23 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was crucial for environment, industrial and biomedical purposes to detect ammonia [66,67], it can be detected through the FRET mechanism of CDs. Ganiga et al [66] designed a detecting platform with CDs and sodium rhodizonate.…”

mentioning

confidence: 99%

The quenching of the fluorescence of carbon dots: A review on mechanisms and applications

et al. 2017

View full text Add to dashboard Cite

Carbon dots (CDs) possess unique optical properties such as tunable photoluminescence (PL) and excitation dependent multicolor emission. The quenching and recovery of the fluorescence of CDs can be utilized for detecting analytes. The PL mechanisms of CDs have been discussed in previous articles, but the quenching mechanisms of CDs have not been summarized so far. Quenching mechanisms include static quenching, dynamic quenching, Förster resonance energy transfer (FRET), photoinduced electron transfer (PET), surface energy transfer (SET), Dexter energy transfer (DET) and inner filter effect (IFE). Following an introduction, the review (with 88 refs.) first summarizes the various kinds of quenching mechanisms of CDs (including static quenching, dynamic quenching, FRET, PET and IFE), the principles of these quenching mechanisms, and the methods of distinguishing these quenching mechanisms. This is followed by an overview on applications of the various quenching mechanisms in detection and imaging.

show abstract

mentioning

confidence: 99%

The quenching of the fluorescence of carbon dots: A review on mechanisms and applications

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Several configurations have been proposed to overcome this limitation. Multilayer coatings have been used on top of unclad fibre sections to provide a medium with the correct refractive index for SPP excitation252627. Sensing mechanisms are based on the refractive index changes occuring in this multilayer structure when gases are adsorbed into it.…”

mentioning

confidence: 99%

Ultrasensitive plasmonic sensing in air using optical fibre spectral combs

et al. 2016

View full text Add to dashboard Cite

Surface plasmon polaritons (SPP) can be excited on metal-coated optical fibres, enabling the accurate monitoring of refractive index changes. Configurations reported so far mainly operate in liquids but not in air because of a mismatch between permittivities of guided light modes and the surrounding medium. Here we demonstrate a plasmonic optical fibre platform that overcomes this limitation. The underpinning of our work is a grating architecture—a gold-coated highly tilted Bragg grating—that excites a spectral comb of narrowband-cladding modes with effective indices near 1.0 and below. Using conventional spectral interrogation, we measure shifts of the SPP-matched resonances in response to static atmospheric pressure changes. A dynamic experiment conducted using a laser lined-up with an SPP-matched resonance demonstrates the ability to detect an acoustic wave with a resolution of 10−8 refractive index unit (RIU). We believe that this configuration opens research directions for highly sensitive plasmonic sensing in gas.

show abstract

“…Sensors for detecting O 2 , CO 2 , and NH 3 had been designed separately to measure concerned single gas concentration [1,2,3,4,5,6,7,8,9,10,11,12]. Some harmful gases exit in our living environment to danger our safety.…”

Section: Introductionmentioning

confidence: 99%

A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection

Hung

Chang

2016

Sensors

View full text Add to dashboard Cite

A novel optical fiber array-type of sensing instrument with temperature compensation for real-time detection was developed to measure oxygen, carbon dioxide, and ammonia simultaneously. The proposed instrument is multi-sensing array integrated with real-time measurement module for portable applications. The sensing optical fibers were etched and polished before coating to increase sensitivities. The ammonia and temperature sensors were each composed of a dye-coated single-mode fiber with constructing a fiber Bragg grating and a long-period filter grating for detecting light intensity. Both carbon dioxide and oxygen sensing structures use multimode fibers where 1-hydroxy-3,6,8-pyrene trisulfonic acid trisodium salt is coated for carbon dioxide sensing and Tris(2,2′-bipyridyl) dichlororuthenium(II) hexahydrate and Tris(bipyridine)ruthenium(II) chloride are coated for oxygen sensing. Gas-induced fluorescent light intensity variation was applied to detect gas concentration. The portable gas sensing array was set up by integrating with photo-electronic measurement modules and a human-machine interface to detect gases in real time. The measured data have been processed using piecewise-linear method. The sensitivity of the oxygen sensor were 1.54%/V and 9.62%/V for concentrations less than 1.5% and for concentrations between 1.5% and 6%, respectively. The sensitivity of the carbon dioxide sensor were 8.33%/V and 9.62%/V for concentrations less than 2% and for concentrations between 2% and 5%, respectively. For the ammonia sensor, the sensitivity was 27.78%/V, while ammonia concentration was less than 2%.

show abstract

Surface Plasmon Resonance-Based Fiber Optic Sensor for the Detection of Low Concentrations of Ammonia Gas

Cited by 57 publications

References 26 publications

The quenching of the fluorescence of carbon dots: A review on mechanisms and applications

The quenching of the fluorescence of carbon dots: A review on mechanisms and applications

Ultrasensitive plasmonic sensing in air using optical fibre spectral combs

A Portable Array-Type Optical Fiber Sensing Instrument for Real-Time Gas Detection

Contact Info

Product

Resources

About