ArticleBiomedical optics express2026
Multi-frequency asynchronous optical coherence elastography by direct demodulation.
Article in Biomedical optics express, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Optical coherence elastography has demonstrated promising results in highly specialized, research-grade OCT systems and in systems with custom, slow scan patterns. However, these approaches are fundamentally incompatible with commercial, FDA-approved OCT systems already deployed in clinics worldwide. Asynchronous optical coherence elastography addresses this limitation by using raster scanning-induced amplitude modulation to spatially encode harmonic shear wave displacement fields. This principle enables recovery of the coherent shear wave field within seconds using conventional frame-rate systems, despite severe temporal undersampling across B-scans. In this work, we extend this approach to show that asynchronous imaging can recover multiple simultaneous excitation frequencies, effectively multiplexing the determination of shear wave dispersion curves. We further introduce a new recovery framework, termed
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