@article {3599, title = {A method for single particle tracking through a multimode fiber}, journal = {Opt. Express}, volume = {30}, year = {2022}, month = {Sep}, pages = {36055{\textendash}36064}, keywords = {KF, MF}, doi = {10.1364/OE.470111}, url = {http://opg.optica.org/oe/abstract.cfm?URI=oe-30-20-36055}, author = {Angel Cifuentes and Johanna Tr{\"a}g{\r a}rdh} } @article {3191, title = {Label-free CARS microscopy through a multimode fiber endoscope}, journal = {Opt. Express}, volume = {27}, year = {2019}, pages = {30055{\textendash}30066}, abstract = {

Multimode fibres have recently been employed as high-resolution ultra-thin endoscopes, capable of imaging biological structures deep inside tissue in vivo. Here, we extend this technique to label-free non-linear microscopy with chemical contrast using coherent anti-Stokes Raman scattering (CARS) through a multimode fibre endoscope, which opens up new avenues for instant and in-situ diagnosis of potentially malignant tissue. We use a commercial 125 \&\#x00B5;m diameter, 0.29 NA GRIN fibre, and wavefront shaping on an SLM is used to create foci that are scanned behind the fibre facet across the sample. The chemical selectivity is demonstrated by imaging 2 \&\#x00B5;m polystyrene and 2.5 \&\#x00B5;m PMMA beads with per pixel integration time as low as 1 ms for epi-detection.

}, keywords = {KF, MF}, doi = {10.1364/OE.27.030055}, url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-27-21-30055}, author = {Johanna Tr{\"a}g{\r a}rdh and Tom{\'a}{\v s} Pik{\'a}lek and Mojm{\'\i}r {\v S}er{\'y} and Tobias Meyer and J{\"u}rgen Popp and Tom{\'a}{\v s} {\v C}i{\v z}m{\'a}r} } @article {3190, title = {Wavelength dependent characterization of a multimode fibre endoscope}, journal = {Opt. Express}, volume = {27}, year = {2019}, pages = {28239{\textendash}28253}, abstract = {

Multimode fibres have recently shown promise as miniature endoscopic probes. When used for non-linear microscopy, the bandwidth of the imaging system limits the ability to focus light from broadband pulsed lasers as well as the possibility of wavelength tuning during the imaging. We demonstrate that the bandwidth is limited by the dispersion of the off-axis hologram displayed on the SLM, which can be corrected for, and by the limited bandwidth of the fibre itself. The selection of the fibre is therefore crucial for these experiments. In addition, we show that a standard prism pulse compressor is sufficient for material dispersion compensation for multi-photon imaging with a fibre endoscope.

}, keywords = {KF, MF}, doi = {10.1364/OE.27.028239}, url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-27-20-28239}, author = {Tom{\'a}{\v s} Pik{\'a}lek and Johanna Tr{\"a}g{\r a}rdh and Stephen Simpson and Tom{\'a}{\v s} {\v C}i{\v z}m{\'a}r} }
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