Abstract
AbstractThe second harmonic generation from strontium titanate crystal under the terahertz excitation has studied at room temperature. The obtained anisotropic dependences show the presence of a terahertz electric field induced polar phase. By analyzing the polarization dependencies of the optical second harmonic intensity, the relative values of the third-order nonlinear susceptibility tensor components were obtained.
Graphical abstract
Funder
Russian Science Foundation
Russian Foundation for Basic Research
Publisher
Springer Science and Business Media LLC
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science