Tomographic phase microscopy.

Choi, Wonshik; Fang-Yen, Christopher; Badizadegan, Kamran; Oh, Seungeun; Lue, Niyom; Dasari, Ramachandra R; Feld, Michael S · Nat Methods · 2007

basic_science · Level V

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Abstract

We report a technique for quantitative three-dimensional (3D) mapping of refractive index in live cells and tissues using a phase-shifting laser interferometric microscope with variable illumination angle. We demonstrate tomographic imaging of cells and multicellular organisms, and time-dependent changes in cell structure. Our results will permit quantitative characterization of specimen-induced aberrations in high-resolution microscopy and have multiple applications in tissue light scattering.

Medical subject headings