Polarimetry is the measurement and interpretation of the geometrical orientation of the electromagnetic wave oscillations.
The last years we have been working on a research line related to the design, optimization and implementation of polarimeters, the main devices to perform polarimetric metrology. The main study is focused on the design of polarimeters based on birefringent materials, including liquid crystal and biaxial-crystals (the latter group based on the conical refraction phenomenon). Recently, the implemented polarimeters are being used for different applications, from the characterization of the optical properties of materials to the contrast enhancement of images.
The polarization measurement of light and the materials response is performed by Stokes and Mueller polarimeters(using the Mueller formalism). One part of our study is focused on the design and optimization of polarimeters based on birefringent materials, including liquid crystal and biaxial-crystals (the latter group based on the conical refraction phenomenon).
- A. Cofré, Vargas, A., Torres-Ruiz, F. A., Campos, J., Lizana, A., Sánchez-López, M. del M., and Moreno, I., “Quantitative performance of a polarization diffraction grating polarimeter encoded onto two liquid-crystal-on-silicon displays”, Optics & Laser Technology, vol. 96, pp. 219 - 226, 2017.
- I. Estévez, Sopo, V., Lizana, A., Turpin, A., and Campos, J., “Complete snapshot Stokes polarimeter based on a single biaxial crystal”, Opt. Lett., vol. 41, pp. 4566–4569, 2016.
- A. Peinado, Lizana, A., and Campos, J., “Design of polarimeters based on liquid crystals and biaxial crystals for polarization metrology”, Opt. Pura Apl, vol. 49, pp. 167-177, 2016.
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.
- V. Eeckhout Albert, Lizana, A., Enric, G. ‐C., J., G. José, Adrià, S., Carla, R., Irene, E., Emilio, G., C., E. Juan, Ignacio, M., and Juan, C., “Polarimetric imaging of biological tissues based on the indices of polarimetric purity”, Journal of Biophotonics, vol. 11, p. e201700189, 2018.
- A. Van Eeckhout, Lizana, 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.
- A. Lizana, Van Eeckhout, A., Adamczyk, K., Rodríguez, C., Escalera, J. Carlos, Garcia-Caurel, E., Moreno, I., and Campos, J., “Polarization gating based on Mueller matrices”, Journal of Biomedical Optics, vol. 22, pp. 22 - 22 - 14, 2017.