Abstract
Experimental verification of the ability to alter the sensitivity to fluorophore layers in turbid media by varying illumination-collection geometry is presented. Fiber-optic probes and two-layer, fluorophore-doped, turbid phantoms are used to elucidate the roles of spot size, illumination–collection fiber separation, and probe–sample spacing. Variations in single- and multiple-fiber probe design parameters produce significant changes in the relative sensitivity to sample layers in a manner that agrees with prior computational studies.
© 2003 Optical Society of America
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