Monday, June 29, 2020

Abstract-Backward terahertz difference frequency generation via modal phase-matching in a planar LiNbO3 waveguide


B. N. Carnio and A. Y. Elezzabi

https://www.osapublishing.org/ol/abstract.cfm?uri=ol-45-13-3657

The backward difference frequency generation process is used to produce narrowband terahertz radiation via modal phase-matching in a SiO2-LiNbO3-air planar waveguide. The TM0 pump mode, TE0 signal mode, and TE0 or TE2 idler modes are selected to satisfy the backward difference frequency generation phase-matching condition, thus allowing narrowband (i.e., <100GHz linewidth) terahertz radiation generation in the spectral range of 2.4–3.2 THz. To date, this is the first investigation of terahertz radiation generation in a waveguide via the modal phase-matched backward difference frequency generation process.
© 2020 Optical Society of America

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