@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}, keywords = {KF, MF}, issn = {2329-423X}, doi = {10.1117/1.NPh.11.S1.S11501}, author = {Uhlirova, Hana and Cizmar, Tomas and Pakan, Janelle M. P. and Gomes, Andre} } @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.

}, keywords = {KF, MF}, issn = {1094-4087}, doi = {10.1364/OE.506926}, url = {https://opg.optica.org/oe/abstract.cfm?uri=oe-32-5-6838}, author = {Mich{\'a}lkov{\'a}, Ivana and Colombel, Simon and Gomes, Andr{\'e} D. and Cizmar, Tomas} } @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}, keywords = {KF, MF}, issn = {2329-423X}, doi = {10.1117/1.NPh.11.S1.S11504}, author = {Uhlirova, Hana and Stib{\r u}rek, Miroslav and Pik{\'a}lek, Tom{\'a}{\v s} and Gomes, Andre and Turtaev, Sergey and Kolbabkova, Petra and Cizmar, Tomas} } @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}, keywords = {KF, MF}, doi = {10.1038/s41467-023-36889-z}, author = {Stib{\r u}rek, Miroslav and Ondr{\'a}{\v c}kov{\'a}, Petra and Tuckova, Tereza and Turtaev, Sergey and {\v S}iler, Martin and Pik{\'a}lek, Tom{\'a}{\v s} and J{\'a}kl, Petr and Gomes, Andre and Krejci, Jana and Kolbabkova, Petra and Uhlirova, Hana and Cizmar, Tomas} } @article {3503, title = {Endoscopic Imaging Using a Multimode Optical Fibre Calibrated with Multiple Internal References}, journal = {Photonics}, volume = {9}, year = {2022}, pages = {37}, keywords = {BF, KF, MF}, doi = {10.3390/photonics9010037}, url = {https://www.mdpi.com/2304-6732/9/1/37}, author = {J{\'a}kl, Petr and {\v S}iler, Martin and Je{\v z}ek, Jan and Cifuentes, Angel and Tr{\"a}g{\r a}rdh, Johanna and Zem{\'a}nek, Pavel and Cizmar, Tomas} } @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}, keywords = {KF, MF}, isbn = {null}, doi = {10.34133/2022/9816026}, url = {https://doi.org/10.34133/2022/9816026}, author = {Butaite, Une G. and Kupianskyi, Hlib and Cizmar, Tomas and Phillips, David B.} } @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}, keywords = {KF, MF}, issn = {2156-7085}, doi = {10.1364/BOE.450375}, author = {Pik{\'a}lek, Tom{\'a}{\v s} and Stib{\r u}rek, Miroslav and Simpson, Stephen and Cizmar, Tomas and Tr{\"a}g{\r a}rdh, Johanna} } @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}, keywords = {KF, MF}, issn = {2047-7538}, doi = {10.1038/s41377-021-00514-9}, author = {Li, Shuhui and Saunders, Charles and Lum, Daniel J. and Murray-Bruce, John and Goyal, Vivek K. and Cizmar, Tomas and Phillips, David B.} } @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.

}, keywords = {KF, MF}, issn = {2041-1723}, doi = {10.1038/s41467-021-23729-1}, url = {https://doi.org/10.1038/s41467-021-23729-1}, author = {Li, Shuhui and Horsley, Simon A. R. and Tyc, Tom{\'a}{\v s} and Cizmar, Tomas and Phillips, David B.} } @article {3450, title = {Polarization-resolved second-harmonic generation imaging through a multimode fiber}, journal = {Optica}, volume = {8}, year = {2021}, pages = {1065{\textendash}1074}, keywords = {KF, MF}, author = {Cifuentes, Angel and Pik{\'a}lek, Tom{\'a}{\v s} and Ondr{\'a}{\v c}kov{\'a}, Petra and Amezcua-Correa, Rodrigo and Antonio-Lopez, Jos{\'e} Enrique and Cizmar, Tomas and Tr{\"a}g{\r a}rdh, Johanna} }