Effect of Taper Angle of the Optical Fiber Microprobe in Power Collection

Mukhtar, Wan Maisarah; Menon, P. Susthitha; Shaari, Sahbudin

doi:10.4028/www.scientific.net/amr.403-408.3387

Cited by 5 publications

(5 citation statements)

References 9 publications

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“…Low total arc power resulted small tip diameter. High value of discharge power produces high temperature field of electric arc discharge which affect the viscosity of fiber tips [1]. It is difficult to fabricate sharp tips when fiber probes are less viscose.…”

Section: Results and Analysismentioning

confidence: 99%

“…The control parameters on the fusion splicer were fusion time, pre-fusion time, arc power and pulling distance. A one-sided pulling technique [1][2][3][4] was applied in order to fabricate the probes. In one-sided pulling technique, the optical fiber was pulled at one end; meanwhile another end remained fixed until the optical fiber broke apart.…”

Section: Methodsmentioning

confidence: 99%

“…The fiber tip is one of the important element nano-optics. The geometrical characteristics of the tips mainly affected the value of power collected by the probes [1]. The ideal tip is characterized by its diameter and taper angle.…”

Section: Introductionmentioning

confidence: 99%

“…It results a probe with smoother surface than the chemical etching technique. The common equipments used to fabricate the fiber probe using this technique are fusion splicer [1][2][3][4][5] and micropipette puller [6][7][8]. The heating sources are electric arc discharge and CO 2 laser, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Microfabricated Fiber Probe by Combination of Electric Arc Discharge and Chemical Etching Techniques

Mukhtar

Menon

Shaari

2012

AMR

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In this study, optical fiber probes were fabricated by combination of electric arc discharge and chemical etching techniques. Size of tips diameters fabricated using different etching solutions were observed. When the optical fibers were pulled and heated by the electric arc discharge using a fusion splicer, fiber tips with few microns in diameter were obtained. To minimize the tips diameter, the pulled fiber probes were etched vertically for 10 minutes using two different etching solutions namely 49% HF and HF buffer solution (49% HF and 40% NH4F) with ratio of 2:1. A thick overlayer was added on top of the HF solution to prevent dangerous vapors escape to the environment. When the tapered part of the pulled fiber (FP1) was dipped into 49% HF solution, the diameter of tip was slightly decreased from 4.41μm to 1.31μm with etching rate of 5.17x10-3 μms-1. When the pulled fiber (FP2) was etched into HF buffer solution, the etching rate was increased up to 52.35% with the etching rate of 10.85x10-3μms-1. The tip diameter was reduced from 7.01μm to 468.9 nm in diameter. Combination of “heat and pull” technique with chemical etching by using HF buffer solution produced fiber probe with small tip diameter.

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Section: Results and Analysismentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microfabricated Fiber Probe by Combination of Electric Arc Discharge and Chemical Etching Techniques

Mukhtar

Menon

Shaari

2012

AMR

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“…al., 2017;Kamarulzaman et. al., 2020;Mukhtar et. al., 2012;Ascorbe et al, 2017) and free space optics based sensor (Gan et.…”

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confidence: 99%

Identification of Recycled Cooking Oil by Varying Number of Au/GO Coated Fiber Optic’s Loop Ring

Mukhtar¹,

Manaf²,

Halim³

2021

ASMScJ

Self Cite

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This study investigates the effect gold nanoparticles (Au)/graphene oxide (GO) coated fibre optics with various number of loop ring in identifying recycled cooking oil based on their frying time. Various layers of gold nanoparticles (AuNP) suspension were deposited onto the substrate via drop casting technique. Few material characterizations were performed such as Fourier Transform Infrared (FTIR) spectroscopy, Ultraviolet Visible (UV-Vis) spectroscopy and refractometer analysis. Three macrobending structures of Au/GO coated fiber optic’s loop ring such as single, double and triple loops with diameter of 1.5cm were formed to generate large area of evanescent field around the fibre and to excite surface plasmon polaritons due to the interaction between AuNPs and analytes. Cooking oil samples with different frying time such as 14 minutes, 28 minutes and 42 minutes were prepared as analytes. The FTIR analysis revealed some changes in the transmittance percent of some bands as well as some slight shifts in the exact position of the bands due to the different of fatty acid composition. As the Au/GO coated fibre optics were immersed into the samples, the penetration depths were obtained as 142.75nm and 168.91nm at operating wavelengths of λ=1310nm and λ=1550nm, respectively. By using 1550nm operating wavelength due to its greater penetration depth than 1310nm, triple loop rings fibre optics coated with two layers of AuNP and one layer of GO exhibits a linear consistency with maximum sensitivity up to 69.17% due to the formation of large evanescent field around the loop area and intense SPP excitation.

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Maximizing the response of SPR signal: A vital role of light excitation wavelength

Mukhtar

Murat

Samsuri

et al. 2018

AIP Conference Proceedings

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Effect of Taper Angle of the Optical Fiber Microprobe in Power Collection

Cited by 5 publications

References 9 publications

Microfabricated Fiber Probe by Combination of Electric Arc Discharge and Chemical Etching Techniques

Microfabricated Fiber Probe by Combination of Electric Arc Discharge and Chemical Etching Techniques

Identification of Recycled Cooking Oil by Varying Number of Au/GO Coated Fiber Optic’s Loop Ring

Maximizing the response of SPR signal: A vital role of light excitation wavelength

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