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Proceedings Paper

3D tracking and multi-wavelength techniques for digital holographic microscopy based cell analysis
Author(s): Björn Kemper; Patrik Langehanenberg; Sebastian Kosmeier; Sabine Przibilla; Angelika Vollmer; Steffi Ketelhut; Gert von Bally
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Paper Abstract

Digital Holographic Microscopy (DHM) allows quantitative multi-focus phase contrast imaging that has been found suitable for technical inspection and quantitative live cell imaging. The combination of DHM with fast and robust autofocus algorithms and a calibrated imaging system enables the determination of axial sample displacements. The evaluation of quantitative DHM phase contrast images permits also an effective detection of lateral object movements. Thus, data for 3D tracking is provided. Multi-wavelength techniques open up prospects for an increased phase resolution in DHM by reduction of parasitic interference effects due to multiple reflections within the measurement setup. For this purpose, the generation of short coherence properties by tunable laser light has been investigated for application in DHM. Results from investigations on sedimenting erythrocytes in suspension demonstrate that DHM enables (automated) quantitative dynamic 3D tracking of multiple cells without mechanical focus adjustment. Furthermore, it is shown that multi-wavelength techniques enhance the phase resolution in quantitative digital holographic cell imaging.

Paper Details

Date Published: 1 July 2009
PDF: 8 pages
Proc. SPIE 7367, Advanced Microscopy Techniques, 736714 (1 July 2009); doi: 10.1117/12.831552
Show Author Affiliations
Björn Kemper, Ctr. for Biomedical Optics and Photonics (Germany)
Patrik Langehanenberg, Ctr. for Biomedical Optics and Photonics (Germany)
Sebastian Kosmeier, Ctr. for Biomedical Optics and Photonics (Germany)
Sabine Przibilla, Ctr. for Biomedical Optics and Photonics (Germany)
Angelika Vollmer, Ctr. for Biomedical Optics and Photonics (Germany)
Steffi Ketelhut, Ctr. for Biomedical Optics and Photonics (Germany)
Gert von Bally, Ctr. for Biomedical Optics and Photonics (Germany)


Published in SPIE Proceedings Vol. 7367:
Advanced Microscopy Techniques
Paul J. Campagnola; Ernst H. K. Stelzer; Gert von Bally, Editor(s)

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