Work

Spatial shift of spatially modulated light projected on turbid media

Year: 2008

Type: article

Abstract: This work extends modulated imaging, a recently developed technique based on the projection of structured light on a turbid medium that is able to measure optical properties of the high-scattering medium and perform tomography. We observe that structured light obliquely projected on a turbid medium undergoes a spatial shift during propagation. We propose a method to measure the spatial phase shift of a sinusoidal fringe pattern projected in a turbid medium, and we present a model derived from the diffusion approximation to describe the light propagation. Experimental validation by measurements performed on liquid phantoms is presented.

Source: Journal of the Optical Society of America A

DOI: 10.1364/josaa.25.002833

Authors: Andrea Bassi, David J. Cuccia, Anthony J. Durkin, Bruce J. Tromberg

Institutions: Politecnico di Milano, Modulim (United States), University of California, Irvine

Language: English

Topic: Optical Imaging and Spectroscopy Techniques

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: green

Funders: National Science Foundation, Ministero dell’Istruzione, dell’Università e della Ricerca, National Center for Research Resources

Awards: G2326367487, G277118886, G3217231669