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Optical anisotropy assessment in nanopaper sheets by imaging Mueller matrix polarimetry

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Abstract

Pristine nanopaper sheets have been produced by the drop-casting process using water-based cellulose nanocrystals solutions with different solute concentrations and hydrogen potential values of the solvent. In order to assess the optical properties associated to the microscopic structure of the resulting substrates, imaging Mueller matrix polarimetry was implemented. Even though the depolarizing features expected in this kind of media, optical anisotropic parameters were measured at microscopic level. It was found that spatial distribution of birefringence depends not only on the raw material nanoconformation, but also on the applied processing method. Nanopaper structural evaluation can help in understanding and optimizing optical response of sensing devices supported in these multifunctional materials.

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The authors declare their availability to facilitate access to the materials and data of this research.

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Acknowledgments

Authors acknowledge the technical assistance from Dr. Isaura Felix-Serrano, postdoctoral fellow in the Advanced Materials Department at Centro de Investigacion en Quimica Aplicada, and Christian Albor, Ricardo Valdivia, and Martin Olmos at Centro de Investigaciones en Optica, AC. SEM images were obtained thanks to the infrastructure provided by Laboratorio Nacional de Materiales Grafenicos (LNMG).

Funding

D. Hernandez-Lopez acknowledges the scholarship 2019-000037-02NACF-20952 from CONACyT-Mexico for doctoral studies.

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All authors contributed to the study design, material preparation, data collection and analysis. The first draft of the manuscript was written by Danay Hernandez-Lopez and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Geminiano Martínez-Ponce.

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Hernández-López, D., Chicangana-Cifuentes, J., Ojeda-Morales, Y. et al. Optical anisotropy assessment in nanopaper sheets by imaging Mueller matrix polarimetry. Cellulose 30, 5307–5319 (2023). https://doi.org/10.1007/s10570-023-05181-0

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  • DOI: https://doi.org/10.1007/s10570-023-05181-0

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