Jiawen Lihttps://orcid.org/0000-0001-8818-6070,1 Simon Thiele,2 Paul Ruchka,2 Andrea Toulouse,2 Rodney Kirk,1 Bryden Quirk,1 Ayla Hoogendoorn,3 Yungchin Chen,4 Karlheinz Peter,4 Stephen Nicholls,5 Johan Verjans,3 Peter Psaltis,3 Christina Bursill,3 Alois Herkommer,2 Harald Giessen,2 Robert McLaughlin1
1The Univ. of Adelaide (Australia) 2Univ. Stuttgart (Germany) 3South Australian Health & Medical Research Institute (Australia) 4Baker Institute (Australia) 5Monash Heart (Australia)
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3D micro-printing enables the formation of complex shapes at a print resolution of tens of nanometers using two-photon lithography. Our team have explored the use of 3D micro-printing to fabricate complex optical geometries directly on the end of a fiber. In this work, we have developed a lens-in-lens design that enables in-vivo high-sensitivity fluorescence and OCT imaging through a single-fiber-based probe, with a diameter <550 microns including a protective catheter sheath. In a parallel work, we have also fabricated a side-facing OCT fiber probe (<300 microns diameter) creating an elongated Bessel beam and simultaneously correct for aberrations.
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Jiawen Li, Simon Thiele, Paul Ruchka, Andrea Toulouse, Rodney Kirk, Bryden Quirk, Ayla Hoogendoorn, Yungchin Chen, Karlheinz Peter, Stephen Nicholls, Johan Verjans, Peter Psaltis, Christina Bursill, Alois Herkommer, Harald Giessen, Robert McLaughlin, "3D micro-printing of miniaturized fiber-optic probes capable of multi-modal imaging and beam tailoring," Proc. SPIE PC12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII, PC1236703 (9 March 2023); https://doi.org/10.1117/12.2652181