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|Title:||Mid-infrared radiation in an aperiodically poled LiNbO3 superlattice induced by cascaded parametric processes|
|Authors:||Guo, H.C. |
|Citation:||Guo, H.C., Qin, Y.Q., Shen, Z.X., Tang, S.H. (2004-12-01). Mid-infrared radiation in an aperiodically poled LiNbO3 superlattice induced by cascaded parametric processes. Journal of Physics Condensed Matter 16 (47) : 8465-8474. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/16/47/001|
|Abstract:||The cascaded parametric processes, i.e. optical parametric oscillation (OPO) and difference frequency generation (DFG), can be used to induce efficient CW mid-infrared radiation at 4-5 μm in a single optical superlattice obtained by aperiodically poling a ferroelectric crystal. The superlattice consists of basic building blocks modulated by a spatial function. We numerically solve the coupling equations considering pump depletion and mid-IR absorption and realize the optimal condition for the cascaded frequency-down-conversion processes. Simultaneously, it is seen that the output performance is enhanced by the cascaded parametric design compared to the standard OPO configuration.|
|Source Title:||Journal of Physics Condensed Matter|
|Appears in Collections:||Staff Publications|
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