title: Influence of birefringence on polarization resolved nonlinear microscopy and collagen SHG structural imaging.
abstract: We analyze the influence of the anisotropy of molecular and biological samples on polarization resolved nonlinear microscopy imaging. We show in particular the detrimental influence of birefringence on Second Harmonic Generation (SHG) and Two-Photon Excited Fluorescence (TPEF) polarization resolved microscopy imaging, which, if not accounted for, can lead to an erroneous determination of the sample properties and thus to a misinterpretation of the read-out information. We propose a method to measure this birefringence and account for this effect in nonlinear polarization resolved experiments.
authors.affiliation: Institut Fresnel,CNRS, Aix-Marseille Université, Ecole Centrale Marseille, Campus de St Jérôme, 13013 Marseille, France MOSAIC.
authors.forename: Sophie
authors.initials: S
authors.lastname: Brasselet
authors.forename: Dora
authors.initials: D
authors.lastname: Aït-Belkacem
authors.forename: Alicja
authors.initials: A
authors.lastname: Gasecka
authors.forename: Fabiana
authors.initials: F
authors.lastname: Munhoz
authors.forename: Sophie
authors.initials: S
authors.lastname: Brustlein
authors.forename: S
authors.initials: S
authors.lastname: Brasselet
mesh_terms: D000818:Animals; D001718:Birefringence; D003094:Collagen / Q000737:chemistry*; D003460:Crystallization; D005453:Fluorescence; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008859:Microscopy, Polarization / Q000379:methods*; D017711:Nonlinear Dynamics; D017785:Photons; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D003094:Collagen