Wave-front displacement system for Vectorial shearing interferometer

Ramírez, Claudio; Strojnik, Marija; Паез, Гонзало

doi:10.1117/12.679508

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2007

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“…This system has been proposed, by researchers in our group, as the foundation for the vectorial shearing interferometer. [26][27][28] The most desirable characteristic of the transillumination interferometer would be its ease of implementation for medical use. However, if the behavior of the traditional interferometric system confirmed the analysis, a later fiber-based implementation would greatly enhance the overall performance.…”

Section: Experimental Implementation and Resultsmentioning

confidence: 99%

Reduced coherence and calibration optimization for transillumination interferometry

2007

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We compare the detected signal in the radiometric transillumination experiment for two sources: a gas laser with high coherence, and an LED with low coherence. Detected signal is significantly improved when a low-coherent light source is utilized, allowing us to clearly separate ballistic photons from those that undergo multiple scattering. The preliminary experimental results confirm the feasibility of the concept, requiring precise matching of the source coherence with the scattering behavior of the tissue (phantom) under study.

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Section: Experimental Implementation and Resultsmentioning

confidence: 99%