@article{1006, author = {Jorge Bravo-Abad and Alejandro Rodriguez and J. Joannopoulos and P. Rakich and Steven Johnson and Marin Soljacic}, title = {Efficient low-power terahertz generation via on-chip triply resonant nonlinear frequency mixing}, abstract = {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.}, year = {2010}, journal = {APL}, volume = {96}, pages = {101110}, url = {http://apl.aip.org/applab/v96/i10/p101110_s1}, }