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Cited by 12Photonic and Optical DevicesStrong Light-Matter InteractionsMechanical and Optical Resonators

The DOI matches its Crossref record; 103 of the 103 references it cites were found in a registry or an index.

Functionalized Optical Microcavities for Sensing Applications

Open access
Granizo, Evelyn, Samokhvalov, Pavel, Nabiev, Igor·2025·Nanomaterials
DOI 10.3390/nano15030206PMC PMC11820503
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Abstract

Functionalized optical microcavities constitute an emerging highly sensitive and highly selective sensing technology. By combining optical microcavities with novel materials, microcavity sensors offer exceptional precision, unlocking considerable potential for medical diagnostics, physical and chemical analyses, and environmental monitoring. The high capabilities of functionalized microcavities enable subwavelength light detection and manipulation, facilitating the precise detection of analytes. Furthermore, recent advancements in miniaturization have paved the way for their integration into portable platforms. For leveraging the potential of microcavity sensors, it is crucial to address challenges related to the need for increasing cost-effectiveness, enhancing selectivity and sensitivity, enabling real-time measurements, and improving fabrication techniques. New strategies include the use of advanced materials, the optimization of signal processing, hybrid design approaches, and the employment of artificial intelligence. This review outlines the key strategies toward enhancing the performance of optical microcavities, highlights their broad applicability across various fields, and discusses the challenges that should be overcome to unlock their full potential.

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Crossref · 10.3390/nano15030206

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Figures

Figure 1 Schematics of the physical structure of various optical microcavities and the main physical principles used for sensing.
Figure 1 Schematics of the physical structure of various optical microcavities and the main physical principles used for sensing.CC BY · PubMed Central
Figure 2 (a) Schematics of an optical microcavity used for gamma radiation detection. The microcavity is made of porous silicon layers with a high refractive index contrast, doped with a polyvinyl alcohol, carbol fuchsin, and crystal violet (Layers A and B). The cavity itself is formed from the same polymer composition (Layer C). (b) Schematics of an optical microcavity made of metamaterial (LHM), SiO2, and graphene sheets at the interface between cavity and mirror.
Figure 2 (a) Schematics of an optical microcavity used for gamma radiation detection. The microcavity is made of porous silicon layers with a high refractive index contrast, doped with a polyvinyl alcohol, carbol fuchsin, and crystal violet (Layers A and B). The cavity itself is formed from the same polymer composition (Layer C). (b) Schematics of an optical microcavity made of metamaterial (LHM), SiO2, and graphene sheets at the interface between cavity and mirror.CC BY · PubMed Central
Figure 3 Schematic representation of the experimental setup of the developed fiber-optic SPR immunosensor for the detection of E. coli. Modified with permission from Kaushik et al. (2019) [63], published by Elsevier, Amsterdam, The Netherlands.
Figure 3 Schematic representation of the experimental setup of the developed fiber-optic SPR immunosensor for the detection of E. coli. Modified with permission from Kaushik et al. (2019) [63], published by Elsevier, Amsterdam, The Netherlands.CC BY · PubMed Central
Figure 4 Schematic of the combination of whispering-gallery modes and nanoplasmonics for enhancing Raman spectroscopy. Reproduced from Mao et al. (2023) [79], published by Springer Nature under a Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/.
Figure 4 Schematic of the combination of whispering-gallery modes and nanoplasmonics for enhancing Raman spectroscopy. Reproduced from Mao et al. (2023) [79], published by Springer Nature under a Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/.CC BY · PubMed Central

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Metadata

Authors
Granizo, E., Samokhvalov, P., & Nabiev, I.
Affiliations
  • National Research Nuclear University MEPhI (RU)
  • Sechenov University (RU)
Corresponding author
Nabiev, Igor
ORCID
Venue
Nanomaterials
Publisher
MDPI AG
Published
2025-01-27
Volume
15
Issue
3
Pages
206
ISSN
2079-4991 (ISSN-L)
DOI
10.3390/nano15030206
PMC
PMC11820503
OpenAlex
W4406911399
Cited by
12
References
103
Citations by year
2026: 5 · 2025: 7
FWCI
0.60
Type
journal article
Language
en
Open access
Licence
Locations
  • Nanomaterials (publishedVersion, cc-by)
  • Preprints.org (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Russian Science Foundation (23-75-30016)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Photonic and Optical Devices
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Mechanical and Optical Resonators
Keywords
optical microcavities, optical sensing, subwavelength light manipulation, sensor sensitivity and selectivity, portable sensing platform, signal processing, medical diagnostics, environmental monitoring, fabrication techniques

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