2017-09-01
Thermo-elastic optical coherence tomography
Publication
Publication
Optics Letters , Volume 42 - Issue 17 p. 3466- 3469
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.
| Additional Metadata | |
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| doi.org/10.1364/OL.42.003466, hdl.handle.net/1765/101739 | |
| Optics Letters | |
| Organisation | Erasmus MC: University Medical Center Rotterdam |
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Wang, T., Pfeiffer, A., Wu, M., Wieser, W., Amenta, G. (Gaetano), Draxinger, W. (Wolfgang), … van Soest, G. (2017). Thermo-elastic optical coherence tomography. Optics Letters, 42(17), 3466–3469. doi:10.1364/OL.42.003466 |
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