All fiber-optic ultra-sensitive temperature sensor using few-layer MoS2 coated D-shaped fiber

Mohanraj, J.; Velmurugan, V.; Sathiyan, S; Sivabalan, S.

doi:10.1016/j.optcom.2017.06.011

Cited by 39 publications

(13 citation statements)

References 40 publications

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“…The sensitivity of the suggested temperature sensor may alternatively be computed as 0.1211 dB/°C based on the two fitting curves. As a result, the suggested optical fiber sensor may be employed in difficult environments to monitor dynamic temperature [ 183 ]. An essential tool for assessing the safety of geotechnical constructions including slopes, dams, tunnels, and excavations is the prediction of displacement or strain.…”

Section: Special Optical Fiber Structure-based Biosensing Applicationsmentioning

confidence: 99%

Novel Optical Fiber-Based Structures for Plasmonics Sensors

et al. 2022

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Optical fiber sensors based on surface plasma technology have many unique advantages in specific applications such as extreme environmental monitoring, physical parameter determination, and biomedical indicators testing. In recent decades, various kinds of fiber probes with special structures were developed according to special processing such as tapering, splicing, etching, fiber balls, grating etc. In this paper, the fabrication technology, characteristics, development status and application scenarios of different special optical fiber structures are briefly reviewed, including common processing equipment. Furthermore, many special novel optical fiber structures reported in recent years are summarized, which have been used in various kinds of plasmonic sensing work. Then, the fiber-plasmonic sensors for practical applications are also introduced and examined in detail. The main aim of this review is to provide guidance and inspiration for researchers to design and fabricate special optical fiber structures, thus facilitating their further research.

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Section: Special Optical Fiber Structure-based Biosensing Applicationsmentioning

confidence: 99%

Novel Optical Fiber-Based Structures for Plasmonics Sensors

et al. 2022

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“…e measurement of temperature has great significance in the application fields of industry, scientific research, and clinical medical. For decades, various temperature sensing methods based on optical fiber structure have been proposed and demonstrated, such as Fabry-Perot interferometers [6][7][8], Mach-Zehnder interferometers [9][10][11], Sagnac [12][13][14], fiber Bragg gratings [15][16][17], and longperiod fiber gratings (LPFGs) [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost High-Temperature Sensor Based on Long-Period Fiber/Microfiber Gratings by Local Fictive Temperature Modification

Zhou

Zhang

Xie

et al. 2020

Journal of Chemistry

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A high temperature-sensitive long-period fiber grating (LPFG) sensor fabricated by the local fictive temperature modification is proposed and demonstrated. High-frequency CO2 laser pulses scan standard single-mode fiber (SMF), and the modification zones extended to the core of SMF. Experimental results demonstrate that the LPFG temperature sensors with 600 μm grating period and 32 period numbers offer the average sensitivity of 0.084 nm/C in the temperature range of room temperature (RM) to 875°C. The LPFGs fabricated here show exponential change in terms of the spectral wavelength shift versus changes in temperature. In addition, the maximum temperature sensitivity of 0.37 nm/C is achieved by employing long-period microfiber grating (LPMFG), fabricated by the microheater brushing technique and the local fictive temperature modification. LPMFG sensor exhibits better temperature characteristics due to a thinner diameter.

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“…Hitherto, several semiconducting two-dimensional materials have been recognized as excellent candidates for sensing devices in the future. Molybdenum disulfide (MoS2) is a suitable material due to its various optical characteristics such as temperature sensing [27,28,29,30], including various technological applications using WS 2 [31,32]. Here, we investigated the optimum Ti thickness to provide SPR behavior with an integration layer of MoS 2 and WS 2 in a relative humidity (RH) sensing application in the visible to mid-infrared region.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Surface Plasmon Resonance (SPR) in MoS2- and WS2-Protected Titanium Side-Polished Optical Fiber as a Humidity Sensor

et al. 2019

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In this paper, we report the effects of a side-polished fiber (SPF) coated with titanium (Ti) films in different thicknesses, namely 5 nm, 13 nm, and 36 nm, protected by a thin layer of transition metal dichalcogenides (TMDCs) such as molybdenum disulfide (MoS2) and tungsten disulfide (WS2), which provide ultra-sensitive sensor-based surface plasmon resonance (SPR) covering from the visible to mid-infrared region. The SPF deposited with Ti exhibits strong evanescent field interaction with the MoS2 and WS2, and good optical absorption, hence resulting in high-sensitivity performance. Incremental increases in the thickness of the Ti layer contribute to the enhancement of the intensity of transmission with redshift and broad spectra. The findings show that the optimum thickness of Ti with 36 nm combined with MoS2 causes weak redshifts of the longitudinal localized surface plasmon resonance (LSPR) mode, while the same thickness of Ti with WS2 causes large blueshifts. The redshifts are possibly due to a reduced plasmon-coupling effect with the excitonic region of MoS2. The observed blueshifts of the LSPR peak position are possibly due to surface modification between WS2 and Ti. Changing the relative humidity from 58% to 88% only elicited a response in Ti/MoS2. Thus, MoS2 shows more sensitivity on 36-nm thickness of Ti compared with WS2. Therefore, the proposed fiber-optic sensor with integration of 2D materials is capable of measuring humidity in any environment.

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All fiber-optic ultra-sensitive temperature sensor using few-layer MoS2 coated D-shaped fiber

Cited by 39 publications

References 40 publications

Novel Optical Fiber-Based Structures for Plasmonics Sensors

Novel Optical Fiber-Based Structures for Plasmonics Sensors

A Low-Cost High-Temperature Sensor Based on Long-Period Fiber/Microfiber Gratings by Local Fictive Temperature Modification

Investigation of Surface Plasmon Resonance (SPR) in MoS2- and WS2-Protected Titanium Side-Polished Optical Fiber as a Humidity Sensor

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