Sensitive magnetic field sensor using 2D magnetic photonic crystal slab waveguide based on BIG/GGG structure

Deghdak, Rachid; Bouchemat, Mohamed; Lahoubi, Mahieddine; Pu, Shengli; Bouchemat, Touraya; Otmani, Hamza

doi:10.1007/s10825-017-0965-z

Cited by 18 publications

(6 citation statements)

References 35 publications

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“…Besides sensing, FR is used for Faraday isolators and a lot of work has been done on increasing total FR. Gigantic FR has been reported for thin films [ 187 , 188 , 189 , 190 ], magneto-optical photonic crystals [ 20 , 191 , 192 , 193 ] and ferrofluids [ 22 , 194 , 195 , 196 , 197 ]. A few exotic structures possessing or mimicing FR have been reported [ 198 , 199 , 200 , 201 , 202 , 203 , 204 , 205 , 206 , 207 , 208 , 209 ].…”

Section: Choice Of the Faraday Materialsmentioning

confidence: 99%

Fiber Optic Sensors Based on the Faraday Effect

Mihailović

Petričević

2021

Sensors

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Some 175 years ago Michael Faraday discovered magnetic circular birefringence, now commonly known as the Faraday effect. Sensing the magnetic field through the influence that the field has on light within the fiber optic sensor offers several advantages, one of them fundamental. These advantages find application in the measurement of electric current at high voltages by measuring the induced magnetic field, thus warranting application for this kind of fiber optic sensor (FOS) in future smart grids. Difficulties in designing and manufacturing high-performance FOSs were greatly alleviated by developments in optical telecommunication technology, thus giving new impetus to magnetometry based on the Faraday effect. Some of the major problems in the processing of optical signals and temperature dependence have been resolved, yet much effort is still needed to implement all solutions into a single commercial device. Artificial structures with giant Faraday rotation, reported in the literature in the 21st century, will further improve the performance of FOSs based on the Faraday effect. This paper will consider obstacles and limits imposed by the available technology and review solutions proposed so far for fiber optic sensors based on the Faraday effect.

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Section: Choice Of the Faraday Materialsmentioning

confidence: 99%

Fiber Optic Sensors Based on the Faraday Effect

Mihailović

Petričević

2021

Sensors

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“…5a. Since (S)GGG is an insulator, its magnetic response leads to the assumption of ε g being proportional to the DC magnetization: the magneto-optical (MO) response model [60,[91][92][93], i.e., with γ MO being the MO constant of the medium, M z denoting the projection of the DC magnetization vector onto the direction of propagation (z), and µ 0 being the permeability of free space. In Ref.…”

Section: Paramagnetic Susceptibility and Magneto-optic Constantmentioning

confidence: 99%

“…As a substrate material, (S)GGG based heterostructures may find even more novel photonic applications. For example, alternating deposition of ultra-thin XIG and GGG films has led to the realization of all-garnet magnetooptical photonic crystals (MOPCs) [47][48][49][50][51][52][53][54][55][56][57][58][59][60][61]. Additionally, heterostructures combining (S)GGG-based garnet substrates and 2D quantum materials that exhibit giant Faraday rotations at THz frequencies [20,42,43] can potentially lead to broadband magneto-optical devices that cover the whole THz-tovisible frequency range.…”

Section: Introductionmentioning

confidence: 99%

Terahertz response of gadolinium gallium garnet (GGG) and gadolinium scandium gallium garnet (SGGG)

Sabbaghi

Hanson

Shi

et al. 2020

Journal of Applied Physics

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We report the magneto-optical response of Gadolinium Gallium Garnet (GGG) and Gadolinium Scandium Gallium Garnet (SGGG) at frequencies ranging from 300 GHz to 1 THz, and determine the material response tensor. Within this frequency window, the materials exhibit nondispersive and low-loss optical responses. At low temperatures, significant THz Faraday rotations are found in the (S)GGG samples. Such strong gyroelectric response is likely associated with the high-spin paramagnetic state of the Gd 3+ ions. A model of the material response tensor is determined, together with the Verdet and magneto-optic constants.

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“…Several are the optical bio/sensor configurations that have been realized through optical fibers or planar waveguides. Optical sensors integrated on silicon-based substrates find uses in gas sensing (Siebert and Müller, 2005;Airoudj et al, 2008;Huang et al, 2014;Consani et al, 2018;Maurya et al, 2018), magnetic field sensing (Deghdak et al, 2017;Ge et al, 2021), detection of biological, and chemical species (Densmore et al, 2007;Mukundan et al, 2009;Schmitt et al, 2011;Kozma et al, 2014;Kumar et al, 2021). Moreover, these sensors offer all the advantages of the technological and fabrication processes typical of the microelectronic industry, such as the integration with other components, the low-cost, and the small-size of the produced device.…”

Section: Introductionmentioning

confidence: 99%

On the Effect of Soft Molecularly Imprinted Nanoparticles Receptors Combined to Nanoplasmonic Probes for Biomedical Applications

Cennamo

Bossi

Arcadio

et al. 2021

Front. Bioeng. Biotechnol.

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Soft, deformable, molecularly imprinted nanoparticles (nanoMIPs) were combined to nano-plasmonic sensor chips realized on poly (methyl methacrylate) (PMMA) substrates to develop highly sensitive bio/chemical sensors. NanoMIPs (dmean < 50 nm), which are tailor-made nanoreceptors prepared by a template assisted synthesis, were made selective to bind Bovine Serum Albumin (BSA), and were herein used to functionalize gold optical nanostructures placed on a PMMA substrate, this latter acting as a slab waveguide. We compared nanoMIP-functionalized non-optimized gold nanogratings based on periodic nano-stripes to optimized nanogratings with a deposited ultra-thin MIP layer (<100 nm). The sensors performances were tested by the detection of BSA using the same setup, in which both chips were considered as slab waveguides, with the periodic nano-stripes allocated in a longitudinal orientation with respect to the direction of the input light. Result demonstrated the nanoMIP-non optimized nanogratings showed superior performance with respect to the ultra-thin MIP-optimized nanogratings. The peculiar deformable character of the nano-MIPs enabled to significantly enhance the limit of detection (LOD) of the plasmonic bio/sensor, allowing the detection of the low femtomolar concentration of analyte (LOD ∼ 3 fM), thus outpassing of four orders of magnitude the sensitivies achieved so far on optimized nano-patterned plasmonic platforms functionalized with ultra-thin MIP layers. Thus, deformable nanoMIPs onto non-optimized plasmonic probes permit to attain ultralow detections, down to the quasi-single molecule. As a general consideration, the combination of more plasmonic transducers to different kinds of MIP receptors is discussed as a mean to attain the detection range for the selected application field.

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Sensitive magnetic field sensor using 2D magnetic photonic crystal slab waveguide based on BIG/GGG structure

Cited by 18 publications

References 35 publications

Fiber Optic Sensors Based on the Faraday Effect

Fiber Optic Sensors Based on the Faraday Effect

Terahertz response of gadolinium gallium garnet (GGG) and gadolinium scandium gallium garnet (SGGG)

On the Effect of Soft Molecularly Imprinted Nanoparticles Receptors Combined to Nanoplasmonic Probes for Biomedical Applications

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