About Terahertz Generation on the Superstructures Layers

In layered crystals of the AIIIBIIICVI2 family the presence of wide temperature ranges is indicated, in which on the primitive translation of the lattice of the initial phase superlattices with periods of 5–15 nm are superimposed. At that, the neutron-diffraction patterns show the presence of superstructural reflections: both reflections that are multiple of the initial translation of the lattice and incommensurable superstructural ones. Our research showed that layered crystals of the TlInS2 family are crystallized with the formation of both incommensurable and commensurate (of the initial translation) superlattices and could be used for the generation of Terahertz radiation.Copyright © 2009 by ASME