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- Title
Highly efficient terahertz generation from periodically poled lithium niobate.
- Authors
Li, Zhongyang; Wang, Silei; Wang, Mengtao; Wang, Weishu
- Abstract
Terahertz (THz) generation from periodically poled lithium niobate with a quasi-phase-matching scheme based on cascaded difference frequency generation (DFG) processes is theoretically analyzed. The cascaded Stokes interaction processes and the cascaded anti-Stokes interaction processes are investigated from coupled wave equations. THz intensities and quantum conversion efficiencies are calculated. Compared with non-cascading DFG processes, THz intensities from 15-order cascading DFG processes are increased to 7.7. The quantum conversion efficiency of 390.85% in cascaded processes can be realized, which exceeds the Manley–Rowe limit.
- Publication
Journal of Optics (09728821), 2019, Vol 48, Issue 2, p166
- ISSN
0972-8821
- Publication type
Article
- DOI
10.1007/s12596-019-00531-3