Efficient low-power terahertz generation via on-chip triply-resonant nonlinear frequency mixing

In this letter, we show theoretically how the light-confining properties of triply-resonant photonic resonators can be tailored to enable dramatic enhancements of the conversion efficiency of terahertz (THz) generation via nonlinear frequency down-conversion processes. Using detailed numerical calcu...

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Bibliographic Details
Published in:Applied physics letters 2010-03, Vol.96 (10), p.101110-101110-3
Main Authors: Bravo-Abad, J., Rodriguez, A. W., Joannopoulos, J. D., Rakich, P. T., Johnson, S. G., Soljačić, M.
Format: Article
Language:English
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Summary:In this letter, we show theoretically how the light-confining properties of triply-resonant photonic resonators can be tailored to enable dramatic enhancements of the conversion efficiency of terahertz (THz) generation via nonlinear frequency down-conversion processes. Using detailed numerical calculations, we predict that this approach can be used to reduce up to three orders of magnitude the pump powers required to reach quantum-limited conversion efficiency of THz generation in conventional nonlinear optical material systems. Furthermore, we propose a realistic design readily accessible experimentally, both for fabrication and demonstration of optimal THz conversion efficiency at sub-W power levels.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3359429