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9 March 2023 Simulation study of aberration-diverse optical coherence tomography for deep tissue imaging
Benjamin Shearer, Steven Adie, Siyang Liu, Meiqi Wu
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Proceedings Volume PC12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII; PC123670O (2023) https://doi.org/10.1117/12.2647269
Event: SPIE BiOS, 2023, San Francisco, California, United States
Abstract
In our study, we simulate aberration-diverse optical coherence tomography (AD-OCT) by coherently averaging astigmatic beams of different angles to investigate its capacity to improve imaging performance at large depths relative to a Gaussian control beam. We find that AD-OCT provides the greatest improvement for small numerical apertures (NA = 0.10) but only marginal improvement for larger numerical apertures (NA = 0.25). Optimal astigmatic foci separation was found to decrease as NA increased, and less than 10 states were required to see maximal improvement. These results suggest that AD-OCT improves imaging quality over conventional Gaussian-beam OCT for low NA systems after averaging just a few states.
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Benjamin Shearer, Steven Adie, Siyang Liu, and Meiqi Wu "Simulation study of aberration-diverse optical coherence tomography for deep tissue imaging", Proc. SPIE PC12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII, PC123670O (9 March 2023); https://doi.org/10.1117/12.2647269
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KEYWORDS
Optical coherence tomography
Deep tissue imaging
Beam propagation method
Laser scattering
Scattering
Imaging systems
Optical simulations
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