Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7924932 | Optics Communications | 2018 | 6 Pages |
Abstract
We consider theoretically difference frequency generation of terahertz (THz) radiation in a collinear one-chip scheme with distributed feedback realized by the parametric interaction of optical waves in a periodically inhomogeneous zinc telluride (ZnTe) crystal with a quadratic nonlinearity. In the approximation of inexhaustible optical pumping at a wavelength λ=0.77μm, the possibility of obtaining a parametric generation with high-efficiency optical-THz conversion (more than 10â2 at temperature 80 K) is shown with an extremely narrow generation line of less than 0.01 THz. The conversion efficiencies at temperatures 80, 200 and 295 K are studied. The obtained results can be used to construct narrow-band THz lasers with a power of about 105 W/cm2 in the quasi-continuous generation regime.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Ivan Panyaev, Yuliya Dadoenkova, Igor Zolotovskii, Dmitry Sannikov,