Thermo-elastic optical coherence tomography

Title

Thermo-elastic optical coherence tomography

 Author

Wang, Tianshi (Erasmus MC)
Pfeiffer, Tom (University of Lübeck)
Wu, Min (Erasmus MC)
Wieser, Wolfgang (Optores GmbH)
Amenta, Gaetano (Erasmus MC)
Draxinger, Wolfgang (University of Lübeck)
van der Steen, A.F.W. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC; Chinese Academy of Sciences)
Huber, Robert (University of Lübeck)
Van Soest, Gijs (Erasmus MC)

Date

2017-09-01

 Abstract

The absorption of nanosecond laser pulses induces rapid thermo-elastic deformation in tissue. A sub-micrometer scale displacement occurs within a few microseconds after the pulse arrival. In this Letter, we investigate the laser-induced thermo-elastic deformation using a 1.5 MHz phase-sensitive optical coherence tomography (OCT) system. A displacement image can be reconstructed, which enables a new modality of phase-sensitive OCT, called thermo-elastic OCT. An analysis of the results shows that the optical absorption is a dominating factor for the displacement. Thermo-elastic OCT is capable of visualizing inclusions that do not appear on the structural OCT image, providing additional tissue type information.


 To reference this document use:

http://resolver.tudelft.nl/uuid:a817cd87-749e-4747-ac86-ed3e29200b43

 DOI

https://doi.org/10.1364/OL.42.003466

 ISSN

0146-9592

 Source

Optics Letters, 42 (17), 3466-3469

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2017 Tianshi Wang, Tom Pfeiffer, Min Wu, Wolfgang Wieser, Gaetano Amenta, Wolfgang Draxinger, A.F.W. van der Steen, Robert Huber, Gijs Van Soest
Files
PDF ol_42_17_3466.pdf 1.69 MB
Close viewer