A protocol using elliptically polarized light for enhanced contrast in polarization gating imaging of biological tissues

Sridhar Susmita (1, 2) , da Silva Anabela (1) , Susmita Sridhar , Anabela da Silva

1 DiMABio - DiMABio
2 ICFO - Institut de Ciencies Fotoniques [Castelldefels]

Polarization gating is a popular and widely used technique in biomedical optics to sense superficial tissues (collinear detection), deeper volumes (cross-linear detection), and also selectively probe deeper volumes (using elliptically polarized light). As opposed to the conventional linearly polarized illumina- tion, we propose a new protocol of polarization gating that combines co-elliptical and counter-elliptical measurements to selectively enhance contrast of the images. In vivo experiments were performed on skin abnormalities of volunteers (to selectively probe and access subsurface information).

Mots clés: Polarization gating; elliptically polarized light; light propagation in tissues; medical and biological imaging; sub-surface volumes screening

Domaines: Optique [physics.optics]

Sridhar Susmita, da Silva Anabela, Susmita Sridhar, Anabela da Silva. A protocol using elliptically polarized light for enhanced contrast in polarization gating imaging of biological tissues. SPIE BiOS, Feb 2016, San Francisco, United States. pp.970319, ⟨10.1117/12.2208760⟩. ⟨hal-01280261⟩