Abstract
Wide tunable terahertz (THz) wave generation was successfully demonstrated utilizing a grating coupler fabricated on the surface of a LiNbO3 crystal which was pumped by a Q-switched Nd:YAG laser. In this paper, we report the detailed characteristics of the oscillation and the radiation including tunability, spatial and temporal coherency, directivity, and efficiency. Oscillation using a LiTaO3 crystal was also performed, in which experimental phasematching condition values agreed well with the calculated one.
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Kawase, K., Sato, M., Taniuchi, T. et al. Characteristics of THz-wave radiation using a monolithic grating coupler on a LiNbO3 crystal. Int J Infrared Milli Waves 17, 1839–1849 (1996). https://doi.org/10.1007/BF02069458
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DOI: https://doi.org/10.1007/BF02069458