Absorption-phase duality in structured illumination transport of intensity (TIE) phase imaging

Yunhui Zhu

doi:10.1117/12.2229094

12 May 2016 Absorption-phase duality in structured illumination transport of intensity (TIE) phase imaging

Yunhui Zhu

Proceedings Volume 9847, Anomaly Detection and Imaging with X-Rays (ADIX); 984709 (2016) https://doi.org/10.1117/12.2229094
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

Robust phase retrieval is obtained by using structured illumination with the Transport of Intensity Equation (SI-TIE). By imposing a proportional relationship between the attenuation coefficient and the refractive index (known as the phase-absorption duality), we are allowed to reformulate the SI-TIE propagation equation to probably address both the transmission and diffraction signals using only a single shot of intensity measurement. The correlation between the phase and attenuation fixes the low frequency instability, resulting in robust phase imaging with enhanced sensitivity.

Citation Download Citation

Yunhui Zhu "Absorption-phase duality in structured illumination transport of intensity (TIE) phase imaging", Proc. SPIE 9847, Anomaly Detection and Imaging with X-Rays (ADIX), 984709 (12 May 2016); https://doi.org/10.1117/12.2229094

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