Recent progress on efficient generation of monochromatic THz pulses based on difference-frequency generation

Yujie J. Ding; Yi Jiang; Guibao Xu; Ioulia B. Zotova

doi:10.1117/12.839880

1 March 2010 Recent progress on efficient generation of monochromatic THz pulses based on difference-frequency generation

Yujie J. Ding, Yi Jiang, Guibao Xu, Ioulia B. Zotova

Author Affiliations +

Proceedings Volume 7600, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV; 76000G (2010) https://doi.org/10.1117/12.839880
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

We review our recent efforts on power scaling of THz pulses generated by several nonlinear crystals. By using a single GaP crystal and stacking three GaP plates, we have significantly increased the output peak power to as high as 722 W and 2.36 kW, respectively. On the other hand, by using CO₂ laser pulses, we have obtained the average output power of 260 μW. We have also used these laser pulses to scale up the output power for the THz pulses to 29.8 μW by stacking GaAs wafers. Indeed, by stacking up to ten wafers, we have increased the output power by a factor of 160. Finally, by using ultrafast laser pulses, we have achieved record-high output powers for the THz pulses generated from multi-period periodically-poled LiNbO₃ crystals based on a backward configuration. The highest output power obtained by us so far is 10.7 μW.

Citation Download Citation

Yujie J. Ding, Yi Jiang, Guibao Xu, and Ioulia B. Zotova "Recent progress on efficient generation of monochromatic THz pulses based on difference-frequency generation", Proc. SPIE 7600, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV, 76000G (1 March 2010); https://doi.org/10.1117/12.839880

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