Terahertz generation based on parametric conversion: from saturation of conversion efficiency to back conversion |
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| Authors: | Jiang Yi Li Da Ding Yujie J Zotova Ioulia B |
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| Affiliation: | Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, USA. |
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| Abstract: | By stacking alternatively rotated gallium phosphide (GaP) plates, the maximum photon conversion efficiency of 40% for the terahertz (THz) generation based on difference-frequency generation has been achieved. The corresponding peak power generated inside the four GaP plates approaches 4 kW. As the number of plates is increased from four to five, the THz output power is significantly decreased, due to back parametric conversion. |
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