Synergism of multiple functional chromophores significantly enhancing the birefringence in layered non-centrosymmetric chalcohalides
Junben Huang, Jianian Cheng, Bing‐Hua Lei, Zhonglei Wei, Shilie Pan, Zhihua Yang
Abstract
Compared with one or two functional chromophores materials, Hg<sub>3</sub>AsQ<sub>4</sub>X (Q = S, Se; X = Cl, Br, I) with multiple ones generate extremely large birefringence due to the synergism of the d<sup>10</sup>cation Hg<sup>2+</sup>, lone pair layer of As<sup>3+</sup>and mixed anions Q<sup>2−</sup>/X<sup>−</sup>.
Topics & Concepts
ChromophoreBirefringenceLone pairCrystallographyChemistryX-ray crystallographyStereochemistryMaterials sciencePhysicsMoleculeDiffractionOpticsPhotochemistryOrganic chemistryCrystal Structures and PropertiesSolid-state spectroscopy and crystallographyNonlinear Optical Materials Research