Background-free fibre optic Brillouin probe for remote mapping of micromechanics
- Publisher:
- The Optical Society
- Publication Type:
- Journal Article
- Citation:
- Biomedical Optics Express, 2020, 11, (11), pp. 6687-6687
- Issue Date:
- 2020-11-01
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Filename | Description | Size | |||
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2005.12266v1.pdf | Accepted Manuscript | 2.41 MB |
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Brillouin spectroscopy is a century-old technique that has recently received
renewed interest, as modern instrumentation has transformed it into a powerful
contactless and label-free probe of micromechanical properties for biomedical
applications. In particular, to fully harness the non-contact and
non-destructive nature of Brillouin imaging, there is strong motivation to
develop a fibre-integrated device and extend the technology into the domain of
in vivo and in situ operation, such as for medical diagnostics. This work
presents the first demonstration of a fibre optic Brillouin probe that is
capable of mapping the mechanical properties of a tissue-mimicking phantom.
This is achieved through combination of miniaturised optical design, advanced
hollow-core fibre fabrication and high-resolution 3D printing. The protype
probe is compact, background-free and possesses the highest collection
efficiency to date, thus provides the foundation of a fibre-based Brillouin
device for remote in situ measurements in challenging and otherwise
difficult-to-reach environments, for biomedical, material science and
industrial applications.
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