Graphene oxide coated U-bent plastic optical fiber based chemical sensor for organic solvents

2018 ◽  
Vol 262 ◽  
pp. 1006-1012 ◽  
Author(s):  
M. Divagar ◽  
A. Gowri ◽  
Sangeeth John ◽  
V.V.R. Sai
Keyword(s):  
Graphene Oxide ◽  
Optical Fiber ◽  
Organic Solvents ◽  
Chemical Sensor ◽  
Plastic Optical Fiber

Bio-chemical sensor based on imperfected plastic optical fiber

2007 ◽  
Author(s):  
Anatoly Babchenko ◽  
Valeri Chernyak ◽  
Jonathan Maryles
Keyword(s):  
Optical Fiber ◽  
Chemical Sensor ◽  
Plastic Optical Fiber

scholarly journals Design of a Smartphone Plastic Optical Fiber Chemical Sensor for Hydrogen Sulfide Detection

2017 ◽  
Vol 17 (21) ◽  
pp. 6935-6940 ◽  
Author(s):  
Alimzhan Sultangazin ◽  
Janysbek Kusmangaliyev ◽  
Arman Aitkulov ◽  
Dana Akilbekova ◽  
Massimo Olivero ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Optical Fiber ◽  
Chemical Sensor ◽  
Plastic Optical Fiber

scholarly journals Modified plastic optical fiber with CNT and graphene oxide nanostructured coatings for ethanol liquid sensing

2017 ◽  
Vol 25 (5) ◽  
pp. 5509 ◽  
Author(s):  
A.L. Khalaf ◽  
P.T. Arasu ◽  
H.N. Lim ◽  
S. Paiman ◽  
N.A. Yusof ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Optical Fiber ◽  
Nanostructured Coatings ◽  
Plastic Optical Fiber ◽  
Liquid Sensing

Bio-Chemical Sensor Based on Smart Material

2008 ◽  
Vol 47-50 ◽  
pp. 343-346
Author(s):  
A. Babchenko ◽  
V. Chernyak ◽  
M. Levantovsky ◽  
E. Vilge ◽  
L. Babchenko
Keyword(s):  
Optical Fiber ◽  
Polymer Film ◽  
Malachite Green ◽  
Chemical Sensor ◽  
High Sensitivity ◽  
Measurement Range ◽  
Evanescent Field ◽  
Ammonia Vapor ◽  
Plastic Optical Fiber ◽  
Additional Increase

In this paper we report results for an intrinsic evanescent field sensor based on nonregular plastic optical fiber with smart polymer film containing Malachite Green MG+([PhC(C6H4NMe2)3]+) as an absorption reagent, which coats the fiber's thermally imperfected area. Thermal imperfections were created by touching the fiber with a heated metal rounded tip. The changes in color and absorption characteristics of the polymer film depend on the acidic and basic environmental properties of the sensing area. An imperfected plastic optical fiber with Malachite Green coating has been presented for the detection of ammonia vapor. We discuss some experimental results that confirm our theoretical predictions. The combination of different thermal imperfection topologies and film’s thickness enabled the design of a bio-chemical sensor with high sensitivity and linearity over a wide measurement range. Additional increase of the evanescent field interaction can be achieved by implementing the imperfection area on a bent fiber.

scholarly journals Comparison between one layer and bilayer surface Plasmon resonance optical fiber chemical sensor

2020 ◽  
Vol 12 (02) ◽  
pp. 52-60
Author(s):  
Soudad S. Ahmed ◽  
Keyword(s):  
Surface Plasmon Resonance ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Chemical Sensor ◽  
Salt Water ◽  
Water Solution ◽  
Single Layer ◽  
Resonance Wavelength ◽  
Plastic Optical Fiber

Surface Plasmon Resonance (SPR) - based plastic optical fiber has been provided as a sensor to estimating the refractive index and then the concentration of specific chemical samples. Two configurations were suggested for a design. The first was through using a single layer of gold with a thickness of about 40nm deposited on a 10mm portion in the middle of plastic optical fiber. In the second configuration, a bilayer deposited on the fiber. This bilayer consisted of a gold layer with a thickness of about 30 nm and an aluminum layer with a thickness of about 30 nm. Both of these configurations utilized as a chemical sensor. The resonance wavelength for the bilayer-based sensor was higher than that of the single-layer sensor for all studied chemical samples. The highest resonance wavelength was for the salt-water solution with a concentration of 30%. For the salt-water solution with a concentration of 30%, the resonance wavelength with the bilayer-based sensor was 568nm while it was 540nm with the single-layer sensor.

scholarly journals Localized Surface Plasmon Resonance with Five-Branched Gold Nanostars in a Plastic Optical Fiber for Bio-Chemical Sensor Implementation

Sensors ◽  
2013 ◽  
Vol 13 (11) ◽  
pp. 14676-14686 ◽  
Author(s):  
Nunzio Cennamo ◽  
Girolamo D'Agostino ◽  
Alice Donà ◽  
Giacomo Dacarro ◽  
Piersandro Pallavicini ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Chemical Sensor ◽  
Localized Surface Plasmon ◽  
Plastic Optical Fiber ◽  
Gold Nanostars

scholarly journals Surface Plasmon Plastic Optical Fiber Resonance with Multi-Layer as Chemical Sensor

2021 ◽  
Vol 19 (50) ◽  
pp. 51-59
Author(s):  
Emad Khatar ◽  
Sudad Salman Bassam
Keyword(s):  
Optical Fiber ◽  
Surface Plasmon ◽  
Figure Of Merit ◽  
Chemical Sensor ◽  
Signal To Noise Ratio ◽  
Optical Fiber Sensor ◽  
Numerical Aperture ◽  
Plastic Optical Fiber ◽  
Core Diameter ◽  
Chemical Materials

A chemical optical fiber sensor based on surface plasmon resonance (SPR) was developed and implemented using multimode plastic optical fiber. The sensor is used to detect and measure the refractive index and concentration of various chemical materials (Urea, Ammonia, Formaldehyde and Sulfuric acid) as well as to evaluate the performance parameters such as sensitivity, signal to noise ratio, resolution and figure of merit. It  was noticed that the value of the sensitivity of the optical fiber-based SPR sensor, with 60nm and 10 mm long, Aluminum(Al) and Gold (Au) metals film exposed sensing region, was 4.4 μm, while the SNR was 0.20, figure of merit was 20 and resolution 0.00045. In this work a multimode plastic optical fiber with a core diameter of 980 μm, fluorinated polymer cladding of 20 μm and a numerical aperture of 0.51 was used.

scholarly journals Fabrication of a Chemical Sensor Based on Surface Plasmon Resonance via Plastic Optical Fiber

2020 ◽  
pp. 765-771
Author(s):  
Ghufran Mohammed Jassam ◽  
Soudad S. Al–Bassam ◽  
Murtadha F. Sultan
Keyword(s):  
Surface Plasmon Resonance ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Figure Of Merit ◽  
Chemical Sensor ◽  
Optical Fiber Sensor ◽  
Numerical Aperture ◽  
Plastic Optical Fiber ◽  
Core Diameter

In this work, a chemical optical fiber sensor based on Surface Plasmon Resonance (SPR) was designed and implemented using plastic optical fiber. The sensor is used for estimating refractive indices and concentrations of various chemical materials (methanol, distilled water, ethanol, kerosene) as well as for evaluating the performance parameters such as sensitivity, signal to noise ratio, resolution and the figure of merit of the fabricated sensor. It was found that the value of the sensitivity of the optical fiber-based SPR sensor, with 40 nm thick and 10 mm long Au metal film of exposed sensing region, was 3μm/RIU, while the SNR was 0.24, the figure of merit was 20, and the resolution was 0.00066. The sort of optical fiber utilized in this work is plastic optical fiber with a core diameter of 980 μm, a fluorinated polymer cladding of 20μm and a numerical aperture of 0.51.

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