Small angles vector magnetometer based on anisotropic ferromagnetic nanofluid functionalized fiber interferometer

Kumar, Ashish; Sahu, Sanjay Kumar; Jha, Rajan

doi:10.1088/1361-6463/ac7fc7

Cited by 11 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, for the pristine tapered optical fiber, core and cladding diameters were taken to be 0.72 and 12 μm, respectively. The electric field enhancement of the pristine fiber is shown in Figure d, which shows that light comes out from the core region to the cladding; this is the higher-order cladding mode (LP 0m ). , …”

Section: Resultsmentioning

confidence: 99%

“…The electric field enhancement of the pristine fiber is shown in Figure 10d, which shows that light comes out from the core region to the cladding; this is the higher-order cladding mode (LP 0m ). 66,67 Due to irradiation of the TOF, defects are created in the waist region. Hence, an extra layer is created inside the pristine TOF, where the thickness and RI of the coating are taken as 1 μm and 1.47, 55 respectively.…”

Section: Comsol Simulationmentioning

confidence: 99%

See 1 more Smart Citation

Detection of Energetic Ions Based on Tapered Optical Fiber

Rajbhar

Maharana

Patra

et al. 2023

ACS Appl. Opt. Mater.

View full text Add to dashboard Cite

Single-mode tapered optical fibers (TOF) are well-known for applications in sensing. In this work, we demonstrate the use of tapered optical fibers to detect charged particles (ions) irradiated at various energies, fluences, and species. In this experiment, two different ion species, namely, Ar+ and N+, have been used to irradiate tapered optical fibers at various fluences and energies. The variations in the free spectral range (FSR), period, and transmission power loss from the ion beam irradiated TOFs are picked up by the optical spectrum analyzer (OSA). We were able to identify ions with energy as low as 80 keV because of the change in the refractive index of the cladding material caused by the implanted ions. The observed changes in spectra are explained using the results of COMSOL simulations. Using Monte Carlo-based TRI3DYN ion–solid interaction simulation, the surface modification and defect formation caused by ion beams as well as the implantation profile in the TOF have been predicted. These results are further corroborated by experimental studies such as scanning electron microscopy and Raman scattering spectroscopy. Such a tapered optical fiber-based detection method will aid in the creation of portable equipment to identify charged particles in nuclear reactors and in space exploration.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Comsol Simulationmentioning

confidence: 99%

Detection of Energetic Ions Based on Tapered Optical Fiber

Rajbhar

Maharana

Patra

et al. 2023

ACS Appl. Opt. Mater.

View full text Add to dashboard Cite

show abstract

“… 65 Due to the reduced diameter of the fiber, up to the micrometer order, such configuration is called fiber optic microwire or microfiber. Several experimental techniques have been used for the fabrication of microfibers, such as the flame and brush technique, 66 fusion splicer method, 67 laser heating, 68 and chemical etching. 69 In the case of the flame and brush technique, the fiber is heated at the center using optimized flame at its softening temperature, and both ends are pulled simultaneously using two translational stages via a computer-controlled automated system.…”

Section: Optical Fiber Interferometrymentioning

confidence: 99%

Label-Free Biochemical Sensing Using Processed Optical Fiber Interferometry: A Review

Jha,

Gorai,

Shrivastav

et al. 2024

ACS Omega

Self Cite

View full text Add to dashboard Cite

Over the last 20 years, optical fiber-based devices have been exploited extensively in the field of biochemical sensing, with applications in many specific areas such as the food processing industry, environmental monitoring, health diagnosis, bioengineering, disease diagnosis, and the drug industry due to their compact, label-free, and highly sensitive detection. The selective and accurate detection of biochemicals is an essential part of biosensing devices, which is to be done through effective functionalization of highly specific recognition agents, such as enzymes, DNA, receptors, etc., over the transducing surface. Among many optical fiber-based sensing technologies, optical fiber interferometry-based biosensors are one of the broadly used methods with the advantages of biocompatibility, compact size, high sensitivity, high-resolution sensing, lower detection limits, operating wavelength tunability, etc. This Review provides a comprehensive review of the fundamentals as well as the current advances in developing optical fiber interferometry-based biochemical sensors. In the beginning, a generic biosensor and its several components are introduced, followed by the fundamentals and state-of-art technology behind developing a variety of interferometry-based fiber optic sensors. These include the Mach−Zehnder interferometer, the Michelson interferometer, the Fabry−Perot interferometer, the Sagnac interferometer, and biolayer interferometry (BLI). Further, several technical reports are comprehensively reviewed and compared in a tabulated form for better comparison along with their advantages and disadvantages. Further, the limitations and possible solutions for these sensors are discussed to transform these in-lab devices into commercial industry applications. At the end, in conclusion, comments on the prospects of field development toward the commercialization of sensor technology are also provided. The Review targets a broad range of audiences including beginners and also motivates the experts helping to solve the real issues for developing an industry-oriented sensing device.

show abstract

“…The proposed sensor had sensitivities of 98.23 pm/mT and −304.8 pm/mT, for perpendicular and parallel magnetic fields, respectively. Another microfibre suspended in a magnetorheological fluid film was proposed by Kumar et al [ 11 ], with a maximum sensitivity of ~16.4 pm/mT over a large magnetic field range of 0–567 mT. Zhang et al, proposed a magnetic field sensor based on nonadiabatic tapered microfibre cascaded with FBG for the simultaneous measurement of magnetic field and temperature.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Field Sensing Using Tapered Small-Core Optical Fibre Surrounded by Different Concentrations of Magnetic Fluid

Kumar

2022

Sensors

View full text Add to dashboard Cite

In this paper, a high-sensitivity magnetic field sensor based on a single-mode–tapered small-core–single-mode (STSCS) optical fibre structure is investigated. The tapered small-core section of STSCS is surrounded by magnetic fluid (MF) containing ferromagnetic particles (FMPs) of different concentrations. The FMPs align themselves along the magnetic field, depending on the strength of the magnetic field. This alignment of FMPs changes the refractive index around the tapered small-core section, which in turn changes the output spectral response of the STSCS optical fibre structure. The change in spectral response is then calibrated for sensing the magnetic field strength. This paper also investigates the effect of both the taper waist diameter of the STSCS optical fibre structure and the concentration of MF surrounding it on the magnetic field sensitivity. The maximum sensitivity demonstrated in this paper is 0.46 nm/mT for a taper waist diameter of 10 μm surrounded by 1.22% FMPs in the MF. The magnetic sensor demonstrates reversible results, and its effects on the orientation of the magnetic field along the X–Y, X–Z and Y–Z axes are also investigated, which suggest that the sensor is capable of vector magnetic field measurement.

show abstract

Small angles vector magnetometer based on anisotropic ferromagnetic nanofluid functionalized fiber interferometer

Cited by 11 publications

References 32 publications

Detection of Energetic Ions Based on Tapered Optical Fiber

Detection of Energetic Ions Based on Tapered Optical Fiber

Label-Free Biochemical Sensing Using Processed Optical Fiber Interferometry: A Review

Magnetic Field Sensing Using Tapered Small-Core Optical Fibre Surrounded by Different Concentrations of Magnetic Fluid

Contact Info

Product

Resources

About