Structural distributions of induced electrostatic field upon volumetric all-optical poling

Abstract

The analysis of structural distributions of induced electrostatic field upon volumetric all-optical poling for estimation of forms of the appearing anisotropy lattices with different periodicities from tens of microns down to hundreds of nanometers has been made on condition of presence of the coherent photo-galvanic effect in medium. The solutions of equations for electrical potential distributions have been obtained by using the method of Fourier transformations in coordinate system of the induced anisotropy lattice for cases of different polarizations of poling laser radiations. The theoretical consideration of formation of the spatially-periodic structures of the induced electrostatic field and corresponding anisotropy lattices in 3D volumetric geometry of creation of their profiles, from the plane-parallel laser poling beams up to the crossed beams in interval of small critical angles, has been shown the existence of important advantage for volumetric all-optical poling connected with possibility of variation of the characteristics for the induced anisotropy in volumetric media that allows to create the small-scale micro lattices with different dimensions and forms. The perspectives of the creation of small periodic micro- and possibly nanolattices of induced anisotropy in amorphous materials are analyzed in point of view that the investigated photo-integrated structures on a base of those lattices may be useful in future for modern photonic and optoelectronic devices. The work was made as part of Russian State Task FWGW-2025-0019.

Speaker

L.I. Vostrikova
Rzhanov Institute of Semiconductor Physics SB RAS
Russia

Discussion

Ask question