Direct 3D printing of heterogeneous optical phantoms with programmable optical properties using a multi-filament extruder

Rahul Ragunathan; Miguel Mireles; Morris Vanegas; Edward Xu; Aiden Lewis; Qianqian Fang

doi:10.1117/12.2649259

7 March 2023 Direct 3D printing of heterogeneous optical phantoms with programmable optical properties using a multi-filament extruder

Rahul Ragunathan, Miguel Mireles, Morris Vanegas, Edward Xu, Aiden Lewis, Qianqian Fang

Author Affiliations +

Proceedings Volume PC12376, Optical Tomography and Spectroscopy of Tissue XV; PC1237602 (2023) https://doi.org/10.1117/12.2649259
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

We report one of the first studies on direct 3-D printing of heterogeneous optical phantoms with programmable absorption and scattering properties using a multi-color mixing extruder. This method dynamically mixes off-the-shelf gray, white, and translucent filaments to achieve arbitrary target absorption and scattering coefficients. We use a spatial frequency domain imaging system to characterize and validate the printed properties and verify that they follow our hypothesized linear-mixing models. A complex phantom with five inclusions with distinct optical properties was produced and the measured properties compared to their predicted values showed an error between 12%-15%.

Conference Presentation

Citation Download Citation

Rahul Ragunathan, Miguel Mireles, Morris Vanegas, Edward Xu, Aiden Lewis, and Qianqian Fang "Direct 3D printing of heterogeneous optical phantoms with programmable optical properties using a multi-filament extruder", Proc. SPIE PC12376, Optical Tomography and Spectroscopy of Tissue XV, PC1237602 (7 March 2023); https://doi.org/10.1117/12.2649259

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