Share Email Print

Proceedings Paper

Fiber optic distance sensor with sub-nm axial resolution
Author(s): Edmund Koch; Alexander Popp; Dennis Boller D.V.M.; Hansfrieder Schleiermacher; Peter Koch
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Although the resolution of optical coherence tomography (OCT) has increased in the last years considerably the method is not suited to resolve surface steps in the sub μm range. Based on the Fourier domain OCT principle we present a method to measure distances up to some millimeters with a resolution in the sub nm range. To achieve this resolution the phase of the spectral data is used. The standard deviation of hundred measurements at a distance of approximately 1 mm was 0.1 nm, which is a relative accuracy of 10-7. The system might be used for measuring the attachment of bio molecules on protein chips.

Paper Details

Date Published: 7 October 2005
PDF: 8 pages
Proc. SPIE 5861, Optical Coherence Tomography and Coherence Techniques II, 586114 (7 October 2005); doi: 10.1117/12.632998
Show Author Affiliations
Edmund Koch, Medizinische Fakultat der TU-Dresden (Germany)
Alexander Popp, Medizinische Fakultat der TU-Dresden (Germany)
Dennis Boller D.V.M., Medizinisches Laserzentrum Luebeck GmbH (Germany)
Hansfrieder Schleiermacher, Medizinisches Laserzentrum Luebeck GmbH (Germany)
Peter Koch, Medizinisches Laserzentrum Luebeck GmbH (Germany)

Published in SPIE Proceedings Vol. 5861:
Optical Coherence Tomography and Coherence Techniques II
Wolfgang Drexler, Editor(s)

© SPIE. Terms of Use
Back to Top