Applied microfiber evanescent wave on ZnO nanorods coated glass surface towards temperature sensing

Jali, Mohd Hafiz; Rahim, Hazli Rafis Abdul; Ashadi, Johari Md; Thokchom, Siddharth; Harun, Sulaiman Wadi

doi:10.1016/j.sna.2018.05.003

Cited by 29 publications

(6 citation statements)

References 49 publications

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“…This approach has been found to be more stable with the presence of electromagnetic disturbance compared to electrical-based sensors [3]. Thus, it has been applied to various fields of sensing such as gas [4], biosensing [5][6][7], chemical [8], temperature [9,10] and pressure sensor [11]. Having high sensitivity is the most crucial property in all-optical sensing technology, which can be achieved by optimizing the geometrical configuration [12], and material properties [13], as well as employing Fano resonance [14,15] and Vernier effect [10,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Integrating Vernier spectrum with Fano resonance for high sensitivity of an all-optical sensor

Aman

Noorden²,

Fajri³

et al. 2022

J Comput Electron

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Vernier and Fano resonances are promising approaches for enhancing the sensitivity of an alloptical sensor. A theoretical analysis was performed to integrate a Fano-like resonance shape with a Vernier resonance by considering the presence of partial reflective end facets at a double microring resonator waveguide. The system was developed based on scattering matrix and optical transfer function. The double and all-pass racetrack microring configurations were compared with and without the end facet at the waveguide to analyze the dynamic change of the output resonance spectrum. The spectrum were analyzed based on the free spectral range and resonance pattern. The resonator systems were applied to refractive index-based sensing protocol, which was operated by a shift of resonance wavelength with a change of refractive index. The sensitivity was optimized by varying the configuration parameters such as the radius of the ring, the distance between end facet, and the coupling coefficients. Integrating Vernier spectrum with Fano resonance improved the sensitivity for all-pass racetrack configuration by 5.16 % and the sensitivity for double racetrack configuration by 6.31 %. The recorded limit of detection (LOD) of double racetrack was 3.30 × 10 -5 .

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Section: Introductionmentioning

confidence: 99%

Integrating Vernier spectrum with Fano resonance for high sensitivity of an all-optical sensor

Aman

Noorden²,

Fajri³

et al. 2022

J Comput Electron

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“…This might lead to improved light modulation and comprehending, as well as increased detection sensitivity. As a consequence, the refractive index of the nanomaterial is going to demonstrate an elevation upon exposure to varying concentrations of refractive index solutions [31,36].…”

Section: A Sensing Mechanismmentioning

confidence: 99%

“…This work demonstrates the integration and fabrication of a sensor utilizing ZnO nanorods as the sensitive element within the framework of Arduino. The hydrothermal approach was employed to synthesize ZnO nanorods on various areas of a microscope glass substrate [30,31]. This method is known for its cost-effectiveness and simplicity, making it a favourable choice for the production of largescale, well ordered arrays of ZnO nanorods.…”

Section: Introductionmentioning

confidence: 99%

Optical Characterization of Different Scattering Area on ZnO Nanorods Coated Glass Substrate Based on Side Coupling Technique for Sensing Application

Jahava,

Jali,

Norashikin

et al. 2024

IEEE Access

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An optical characterization of the proposed sensing scheme comprises of ZnO nanorods coated glass substrate based on side coupling technique for different scattering area is reported. The glass substrate was coated with a highly responsive nanomaterial which is Zinc Oxide (ZnO) nanorods using hydrothermal technique. The scattering area were varied into five samples of 0.016m 2 , 0.018m 2 , 0.020m 2 , 0.022m 2 and 0.024m 2 . The samples were exposed to a range of RI solutions spanning from a concentration of 0% to 100%. Based on experimental results, the sample with an area of 0.022m 2 exhibited outstanding characteristics in most of the performance parameters such as α, γ, output light intensity and sensitivity towards different RI solution. The sample demonstrates a notably elevated level of light intensity and output voltage in comparison to the closest best samples by a factor of 1.1. Besides it produced linearity of 97.5% and sensitivity of 0.0125V/%. The proposed sensor exploits the visible light using the side coupling technique applied on the glass surface that was coated with Zinc Oxide (ZnO) nanorods to enhance the output coupling voltage. It effectively employed the scattering and surface absorption properties to interact with different refractive index solutions INDEX TERMS ZnO nanorods, glass substrate, scattering area, refractive index, side coupling

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“…However, the exposed cladding of tapered fibers makes the system more sensitive to the ambient environment. This method is more suitable for optical fiber sensing applications such as in temperature sensors [36,37]. Alternatively, polyvinyl alcohol (PVA) based thin films can be prepared and sandwiched between two fiber ferrules to work as SA [38,39].…”

Section: Introductionmentioning

confidence: 99%

Mode-locked ytterbium-doped fiber laser with zinc phthalocyanine thin film saturable absorber

Soboh

Al-Masoodi²,

Erman

et al. 2022

Front. Optoelectron.

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A stable mode-locked laser was demonstrated using a newly developed zinc phthalocyanine (ZnPc) thin film as passive saturable absorber (SA) in ytterbium-doped fiber laser (YDFL). The ZnPc thin film was obtained using a casting method and then inserted between the two fiber ferrules of a YDFL ring cavity to generate mode-locked pulses. The resulting pulsed laser operated at a wavelength of 1034.5 nm having a repetition rate of 3.3 MHz. At pump power of 277 mW, the maximum output power and pulse energy are achieved at 4.92 mW and 1.36 nJ, respectively. ZnPc has a high chemical and photochemical stability, and its significance for use as a potential SA in a mode-locked laser is reported in this work. Graphical Abstract

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Applied microfiber evanescent wave on ZnO nanorods coated glass surface towards temperature sensing

Cited by 29 publications

References 49 publications

Integrating Vernier spectrum with Fano resonance for high sensitivity of an all-optical sensor

Integrating Vernier spectrum with Fano resonance for high sensitivity of an all-optical sensor

Optical Characterization of Different Scattering Area on ZnO Nanorods Coated Glass Substrate Based on Side Coupling Technique for Sensing Application

Mode-locked ytterbium-doped fiber laser with zinc phthalocyanine thin film saturable absorber

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