Journal ArticleDOI
On the performance of different bimetallic combinations in surface plasmon resonance based fiber optic sensors
Anuj K. Sharma,Banshi D. Gupta +1 more
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In this article, the capability of different bimetallic combinations to be used in a fiber optic sensor based on the technique of surface plasmon resonance has been investigated and compared numerically.Abstract:
In the present work, we have investigated the capability of different bimetallic combinations to be used in a fiber optic sensor based on the technique of surface plasmon resonance. The metals considered for the present analysis are silver, gold, copper, and aluminum. The performance of the sensor with different bimetallic combinations is evaluated and compared numerically. The performance is analyzed in terms of three parameters: sensitivity, signal-to-noise ratio (SNR), and operating range. On the basis of the comparison and some logical criteria, the best possible bimetallic combination along with requisite thickness distribution is predicted. The bimetallic combination is capable of simultaneously providing the larger values of sensitivity, SNR, and operating range, which is not possible with any single metallic layer.read more
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Journal ArticleDOI
Surface Plasmon Resonance-Based Fiber Optic Sensors: Principle, Probe Designs, and Some Applications
Banshi D. Gupta,R. K. Verma +1 more
TL;DR: The present review may provide researchers valuable information regarding fiber optic SPR sensors and encourage them to take this area for further research and development.
Journal ArticleDOI
SPR based fibre optic ammonia gas sensor utilizing nanocomposite film of PMMA/reduced graphene oxide prepared by in situ polymerization
TL;DR: In this paper, surface plasmon resonance (SPR) based fiber optic gas sensors using nanocomposite film based on poly(methyl methacrylate) [PMMA], reduced graphene oxide (rGO) and PMMA/rGO nanocompositionites having varying amounts of rGO are presented.
Journal ArticleDOI
Surface plasmon resonance based tapered fiber optic sensor with different taper profiles
TL;DR: In this paper, a theoretical model for surface plasmon resonance (SPR) based tapered fiber optic sensor is proposed with three different taper profiles, namely, linear, parabolic, and exponential-linear.
Journal ArticleDOI
Recent Advances in the Synthesis of Plasmonic Bimetallic Nanoparticles
TL;DR: The importance of plasmonic nanoparticles in sensor development, imaging, photodiagnostics, and optoelectronics has resulted in a strong interest toward the development of straightforward synthetic methods for their preparation.
Journal ArticleDOI
A Review of advancements (2007–2017) in plasmonics-based optical fiber sensors
TL;DR: In this paper, the progress made in the area of plasmonics-based fiber optic sensors during the last decade (2007-2017) has been summarized in order to widen the scope of the work.
References
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Journal ArticleDOI
Surface plasmon resonance for gas detection and biosensing
TL;DR: The surface plasmon resonance (SPR) is a new optical technique in the field of chemical sensing as discussed by the authors, which can be used for gas detection, together with results from exploratory experiments with relevance to biosensing.
Journal ArticleDOI
Optical properties of the metals Al, Co, Cu, Au, Fe, Pb, Ni, Pd, Pt, Ag, Ti, and W in the infrared and far infrared
TL;DR: The data for the noble metals and Al, Pb, and W can be reasonably fit using the Drude model and it is shown that -epsilon1(omegas) = epsilon2(omega) approximately omega(2)(p)/(2omega( 2)(tau) at the damping frequency omega = omega(tau), where the plasma frequency is omega(p).
Journal ArticleDOI
A fiber-optic chemical sensor based on surface plasmon resonance
TL;DR: In this paper, a fiber-optic chemical sensor is presented which utilizes surface plasmon resonance excitation, which is fabricated by removing a section of the fiber cladding and symmetrically depositing a thin layer of highly reflecting metal onto the fiber core.
Book
An Introduction to Fiber Optics
Ajoy Ghatak,Krishna Thyagarajan +1 more
TL;DR: In this article, the authors present a detailed analysis of planar optical waveguide and a step-index fiber model for optical fiber communication and demonstrate the properties of a step index fiber.
Journal ArticleDOI
On the sensitivity of surface plasmon resonance sensors with spectral interrogation
TL;DR: Theoretical analysis of the sensitivity of surface plasmon resonance (SPR) sensors with spectral interrogation is presented in this article, where two basic configurations of SPR sensors are investigated for the measurement of variations in the refractive index of bulk media, and for the monitoring of variation in the thickness of thin films.
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