Constructing ultraviolet nonlinear optical crystals with large second harmonic generation and short absorption edges by using polar tetrahedral S<sub>2</sub>O<sub>3</sub> groups
Shixian Ke, Huixin Fan, Chensheng Lin, Ning Ye, Min Luo
Abstract
It is generally considered difficult for traditional sulfates to exhibit strong second harmonic generation (SHG) responses and large birefringence values because SO 4 groups are nonpolar tetrahedral structures.
Topics & Concepts
Second-harmonic generationTetrahedronBirefringencePolarSurface second harmonic generationAbsorption (acoustics)UltravioletNonlinear opticsMaterials scienceNonlinear opticalCrystallographyHarmonicOpticsMolecular physicsChemistryOptoelectronicsNonlinear systemPhysicsLaserAstronomyQuantum mechanicsCrystal Structures and PropertiesNonlinear Optical Materials ResearchSolid-state spectroscopy and crystallography