Repository logo
 
Loading...
Thumbnail Image
Publication

Swept-source phase-stabilized optical coherence tomography setup for elastography

Use this identifier to reference this record.

Authors

Correia, Carlos
Barbeiro, Sílvia
Cardoso, João
Domingues, José Paulo

Advisor(s)

Abstract(s)

We present an Optical Coherence Elastography (OCE) system, based on a swept-source Optical Coherence Tomography (OCT) setup, and evaluate its performance in terms of phase stability and minimum detectable displacement. The ability to record sub-pixel movements in samples under dynamic conditions was also assessed. The OCE system has a time stability of 396.9 ± 46.7 ps. The phase stability, given by the standard deviation of the measured phase difference, was 72.44 mrad, which corresponds to a minimum detectable displacement of 6.11 nm. Tests showed that the OCE system can detect and measure sub-pixel movements in samples under dynamic mechanical excitation.

Description

Keywords

Optical coherence elastography Swept-source OCT Phase stabilization

Pedagogical Context

Citation

Research Projects

Organizational Units

Journal Issue