Polarimetric Applications

The implemented polarimeters are being used for different applications, from the characterization of the optical properties of materials (e.g. the refraction index) to the contrast enhancement of images (e.g. biological tissues images). The contrast enhancement of images are based on different decompositions of the Mueller matrix information. We study which decomposition give more acurate physical information.

Refraction Index Measurement

We are studying the use of polarimeters with HNAM objectives to characterize the refraction index of materials with curved surfaces. So we are not limited to planar surfaces, but they may have different shape. The material could present anisotropies as well.

  1. M. del M. Sánchez-LópezVargas, A.Cofré, A.Moreno, I., and Campos, J.“Simple spectral technique to identify the ordinary and extraordinary axes of a liquid crystal retarder”, Optics Communications, vol. 349, pp. 105 - 111, 2015.

Tissue Studies

The developed polarimeters are being applied to applications in biophotonics. Polarized images allow us to easy determine different biological tissues in a sample.

              

  1. A. Van EeckhoutLizana, A.Garcia-Caurel, E.Gil, J. J.Sansa, A.Rodríguez, C.Estévez, I.González, E.Escalera, J. C.Moreno, I., and Campos, J.“Indices of polarimetric purity for biological tissues inspection”, Proc.SPIE, vol. 10497, pp. 10497 - 10497 - 12, 2018.
  2. A. Van EeckhoutLizana, A.Garcia-Caurel, E.Gil, J. J.Sansa, A.Rodríguez, C.Estévez, I.González, E.Zhang, H.Escalera, J. C.Ossikovski, R.Moreno, I., and Campos, J.“Indices of polarimetric purity to enhance the image quality in biophotonics applications”, Proc.SPIE, vol. 10685, pp. 10685 - 10685 - 12, 2018.
  3. V. Eeckhout AlbertLizana, A.Enric, G. ‐C.J., G. JoséAdrià, S.Carla, R.Irene, E.Emilio, G.C., E. JuanIgnacio, M., and Juan, C.“Polarimetric imaging of biological tissues based on the indices of polarimetric purity”, Journal of Biophotonics, vol. 11, p. e201700189, 2018.
  4. G. NdongLizana, A.Garcia-Caurel, E.Paret, V.Melizzi, G.Cattelan, D.Pelissier, B., and Tortai, J. - H.“Use of optical spacers to enhance infrared Mueller ellipsometry sensitivity: application to the characterization of organic thin films”, Appl. Opt., vol. 55, pp. 3323–3332, 2016.

Polarimetric parameters

The Mueller matrix is a 4 by 4 matrix in which different physical properties are mixed. In order to extract the relevant physical information, several decompositions can be applied. We study the result of this decompositions and the implementation of new or non-used decompositions.

              

  1. A. Van EeckhoutLizana, A.Garcia-Caurel, E.Gil, J. J.Ossikovski, R., and Campos, J.“Synthesis and characterization of depolarizing samples based on the indices of polarimetric purity”, Opt. Lett., vol. 42, pp. 4155–4158, 2017.
  2. A. LizanaVan Eeckhout, A.Adamczyk, K.Rodríguez, C.Escalera, J. CarlosGarcia-Caurel, E.Moreno, I., and Campos, J.“Polarization gating based on Mueller matrices”, Journal of Biomedical Optics, vol. 22, pp. 22 - 22 - 14, 2017.
Campus d'excel·lència internacional U A B