@article {3995, title = {Exploiting Complex Media Photonics to Illuminate Brain{\textquoteright}s Hidden Depth}, journal = {NEUROPHOTONICS}, volume = {11}, year = {2024}, month = {SEP 1}, pages = {S11501}, issn = {2329-423X}, doi = {10.1117/1.NPh.11.S1.S11501} } @article {4046, title = {Generating Airy beams through multimode fibres}, journal = {Optics Express}, volume = {32}, year = {2024}, note = {

Publisher: Optica Publishing Group

}, pages = {6838{\textendash}6847}, abstract = {

Focussing light through a multimode fibre (MMF) is the basis of holographic endoscopes, which currently enable detailed imaging of deep tissue. Achieving high fidelity and purity diffraction-limited foci has been shown to be possible, when fully controlling the amplitude, phase, and two orthogonal polarisation states of the input field. Yet, generating more complex field distributions with similar performance remains to be assessed. Here, we demonstrate the generation of Airy beams through an MMF containing in excess of 90 \% of the optical power delivered by the fibre. We discuss two distinct methods for generating optical landscapes: the direct field and the Fourier domain synthesis. Moreover, we showcase the flexibility of the Fourier domain synthesis to modify the generated beam.

}, issn = {1094-4087}, doi = {10.1364/OE.506926}, url = {https://opg.optica.org/oe/abstract.cfm?uri=oe-32-5-6838} } @article {3994, title = {{\textquoteleft}{\textquoteleft}There{\textquoteright}s plenty of room at the bottom{\textquoteright}{\textquoteright}: deep brain imaging with holographic endo-microscopy}, journal = {NEUROPHOTONICS}, volume = {11}, year = {2024}, month = {SEP 1}, issn = {2329-423X}, doi = {10.1117/1.NPh.11.S1.S11504} } @article {3727, title = {110 mu m thin endo-microscope for deep-brain in vivo observations of neuronal connectivity, activity and blood flow dynamics}, journal = {NATURE COMMUNICATIONS}, volume = {14}, year = {2023}, month = {APR 5}, pages = {1897}, doi = {10.1038/s41467-023-36889-z} } @article {3503, title = {Endoscopic Imaging Using a Multimode Optical Fibre Calibrated with Multiple Internal References}, journal = {Photonics}, volume = {9}, year = {2022}, pages = {37}, doi = {10.3390/photonics9010037}, url = {https://www.mdpi.com/2304-6732/9/1/37} } @article {3644, title = {How to Build the {\textquoteleft}{\textquoteleft}Optical Inverse{\textquoteright}{\textquoteright} of a Multimode Fibre}, journal = {Intelligent Computing}, volume = {2022}, year = {2022}, pages = {9816026}, isbn = {null}, doi = {10.34133/2022/9816026}, url = {https://doi.org/10.34133/2022/9816026} } @article {3509, title = {Suppression of the Non-Linear Background in a Multimode Fibre CARS Endoscope}, journal = {Biomedical Optics Express}, volume = {13}, year = {2022}, pages = {862{\textendash}864}, issn = {2156-7085}, doi = {10.1364/BOE.450375} } @article {3436, title = {Compressively sampling the optical transmission matrix of a multimode fibre}, journal = {LIGHT-SCIENCE \& APPLICATIONS}, volume = {10}, year = {2021}, month = {APR 21}, pages = {88}, issn = {2047-7538}, doi = {10.1038/s41377-021-00514-9} } @article {3470, title = {Memory effect assisted imaging through multimode optical fibres}, journal = {Nature Communications}, volume = {12}, year = {2021}, pages = {3751}, abstract = {

When light propagates through opaque material, the spatial information it holds becomes scrambled, but not necessarily lost. Two classes of techniques have emerged to recover this information: methods relying on optical memory effects, and transmission matrix (TM) approaches. Here we develop a general framework describing the nature of memory effects in structures of arbitrary geometry. We show how this framework, when combined with wavefront shaping driven by feedback from a guide-star, enables estimation of the TM of any such system. This highlights that guide-star assisted imaging is possible regardless of the type of memory effect a scatterer exhibits. We apply this concept to multimode fibres (MMFs) and identify a {\textquoteleft}quasi-radial{\textquoteright} memory effect. This allows the TM of an MMF to be approximated from only one end - an important step for micro-endoscopy. Our work broadens the applications of memory effects to a range of novel imaging and optical communication scenarios.

}, issn = {2041-1723}, doi = {10.1038/s41467-021-23729-1}, url = {https://doi.org/10.1038/s41467-021-23729-1} } @article {3450, title = {Polarization-resolved second-harmonic generation imaging through a multimode fiber}, journal = {Optica}, volume = {8}, year = {2021}, pages = {1065{\textendash}1074} }