The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2016
Filed:
Jul. 23, 2013
Ecole Polytechnique, Palaiseau, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Thierry Gacoin, Bures sur Yvette, FR;
Jong Wook Kim, Palaiseau, FR;
Khalid Lahlil, Orsay, FR;
Jean-Pierre Boilot, Meudon, FR;
Jacques Peretti, Paris, FR;
Ecole Polytechnique, Palaiseau, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Abstract
A method of fabricating a transparent and birefringent mineral solid thin layer comprises the following steps: a) preparing a colloidal solution constituted by anisotropic mineral nanoparticles in suspension in a dispersion liquid; b) depositing the colloidal solution on a surface of a substrate by spreading as a thin layer while applying directional shear stress tangentially to the surface of the substrate so as to deposit the colloidal solution as a liquid thin layer on the surface of the substrate, the value of the shear stress and the concentration of mineral nanoparticles in the colloidal solution being determined in such a manner as to cause the anisotropic mineral nanoparticles to be aligned along the direction of the shear stress tangential to the surface of the substrate; and c) drying the liquid thin layer by evaporating the dispersion liquid.