3D micro-endoscopy enabled by 2-photon polymerization and advanced fiber design (Conference Presentation)

Robert Kuschmierz; Elias Scharf; Jakob Dremel; Kinga Zolnacz; Ronja Stephan; Michael Steinke; Detlef Ristau; Jürgen Czarske

doi:10.1117/12.2651436

16 March 2023 3D micro-endoscopy enabled by 2-photon polymerization and advanced fiber design (Conference Presentation)

Robert Kuschmierz, Elias Scharf, Jakob Dremel, Kinga Zolnacz, Ronja Stephan, Michael Steinke, Detlef Ristau, Jürgen Czarske

Author Affiliations +

Proceedings Volume PC12388, Adaptive Optics and Wavefront Control for Biological Systems IX; PC123880C (2023) https://doi.org/10.1117/12.2651436
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

Coherent fiber bundles used in endoscopic imaging suffer from inter-core dispersion resulting in pseudo random phase distortions for a transmitted wavefront. This limits their application to relaying intensity patterns for pixelated, 2D near field imaging. In the last years, employing spatial light modulators for digital optical conjugation of these distortions and unpixellated 3D raster scanning has been demonstrated. Here we present using 2-Photon Polymerization for writing phase compensation holograms onto the CFB facet enabling direct far field imaging in a simplified and robust manner. Robustness and field of view were increased by aperiodic and twisted fibers.

Conference Presentation

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Robert Kuschmierz, Elias Scharf, Jakob Dremel, Kinga Zolnacz, Ronja Stephan, Michael Steinke, Detlef Ristau, and Jürgen Czarske "3D micro-endoscopy enabled by 2-photon polymerization and advanced fiber design (Conference Presentation)", Proc. SPIE PC12388, Adaptive Optics and Wavefront Control for Biological Systems IX, PC123880C (16 March 2023); https://doi.org/10.1117/12.2651436

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KEYWORDS

Two photon polymerization

Diffractive optical elements

Calibration

Imaging systems

Optics manufacturing

Spatial light modulators

Tissue optics

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