All Fiber-Optic Multigas (NH₃, NO₂, and CO) Sensor Based on MoWS₂ Coated Fiber

Mohanraj, J.; Valliammai, M.; Sridevi, S.; Kanimozhi, T.; Vinodhkumar, N.; Sivabalan, S.

doi:10.1109/jsen.2022.3176862

Cited by 6 publications

(4 citation statements)

References 40 publications

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“…Figure 7(a) depicts the experimental setup for the optical fiber clad-modified gas sensor. Mohanraj et al 114 demonstrated an all fiber-optic multigas (FOMS) (NH 3 , NO 2 , and CO) sensor by coating synthesized molybdenum tungsten disulfide (MoWS 2 ) nanosheets on a side-polished fiber (SPF). The MoWS 2 -coated SPF sensor was used for sensing three hazardous gases: NH 3 , NO 2 , and CO. Theoderaj et al 24 fabricated a clad-modified OFS, coating CdS over the clad-modified region using chemical bath deposition as the NO 2 gas-sensing medium.…”

Section: Microbial Surveillancementioning

confidence: 99%

“…22 (b) Diagram of the all FOMS (NH 3 , NO 2 , and CO) sensor with the MoWS 2 sensitizing layer. 114 (c) Gas sensing mechanism of the CdS-coated clad-modified optical fiber sensor. 24 (d) Gas sensing response of the 2D WOx -based optical fiber sensor.…”

Section: Carbon Monoxidementioning

confidence: 99%

“…Figure 7(a) depicts the experimental setup for the optical fiber clad-modified gas sensor. Mohanraj et al 114 . demonstrated an all fiber-optic multigas (FOMS) (NH3, NO2, and CO) sensor by coating synthesized molybdenum tungsten disulfide (MoWS2) nanosheets on a side-polished fiber (SPF).…”

Section: Air Quality Monitoringmentioning

confidence: 99%

“…(a) The diagram of the experimental setup for the optical fiber clad-modified gas sensor 22 . (b) Diagram of the all FOMS (NH3, NO2, and CO) sensor with the MoWS2 sensitizing layer 114 . (c) Gas sensing mechanism of the CdS-coated clad-modified optical fiber sensor 24 .…”

Section: Air Quality Monitoringmentioning

confidence: 99%

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Optical fiber sensors for water and air quality monitoring: a review

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Owing to their advantages of anti-electromagnetic interference, chemical resistance, high sensitivity, and fast response time, optical fiber sensors (OFSs) are widely used in biomedical, environmental monitoring, and food safety fields. We introduce the classification and principles of OFSs and summarize the applications and research progress of OFSs in water quality detection (heavy metals and microorganisms) and air quality monitoring (COx , NOx , and VOCs). Meanwhile, analytical performance, reliability, and environmental adaptability of OFSs are discussed and prospected.

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Section: Microbial Surveillancementioning

confidence: 99%

Section: Carbon Monoxidementioning

confidence: 99%

Section: Air Quality Monitoringmentioning

confidence: 99%

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confidence: 99%

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Ni-MOF-74 film coated optical microfiber CO sensor cascaded with spiral fiber grating temperature compensator

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Brillouin lasers in a graphene microresonator for multispecies and individual gas molecule detection

An,

Li,

Zhang

et al. 2023

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Optical microcavities offer a promising platform for highly efficient light–matter interactions. Recently, the combination of microresonators and 2D materials in nanoscale has further enriched the optoelectronics of the microcavity geometries, spurring broad advances ranging from lasers, nonlinear converters, modulators to sensors. Here, we report the concept of a Brillouin laser sensor, by depositing graphene on an over-modal microsphere. Driven by a single continuous-wave pump at 1550 nm, multiple Brillouin lasers from distinct mode families are co-generated in a single device. The Brillouin lasers excited in the high Q cavity produce heterodyne beating notes with phase noise down to −161 dBc/Hz at 1 MHz offset, not only enabling label-freely identifiable detection of multispecies gas molecules adsorbed on the graphene in situ but also rendering it possible to trace individual molecules. Such a combination of graphene optoelectronics and Brillouin lasers in microcavities demonstrates a novel physical paradigm and offers insights into powerful tools for fast and precise optical sensing.

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All Fiber-Optic Multigas (NH₃, NO₂, and CO) Sensor Based on MoWS₂ Coated Fiber

Cited by 6 publications

References 40 publications

Optical fiber sensors for water and air quality monitoring: a review

Optical fiber sensors for water and air quality monitoring: a review

Ni-MOF-74 film coated optical microfiber CO sensor cascaded with spiral fiber grating temperature compensator

Brillouin lasers in a graphene microresonator for multispecies and individual gas molecule detection

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