Abstract-Sub-nanosecond terahertz radiation obtained with an aperiodically poled lithium niobate and organic HMQ-TMS

Miriam Carrillo-Fuentes, Roger S. Cudney, Seung-Heon Lee, and O-Pil Kwon

Experimental set-up.

https://www.osapublishing.org/oe/abstract.cfm?uri=oe-28-17-24444

We report a compact, simple source of terahertz radiation that can be tuned to well-defined frequencies spanning ∼1.4 to 10 THz, based on difference-frequency generation in an HMQ-TMS crystal. The pair of pump pulses required for this process is obtained by optical parametric generation in an aperiodically-poled lithium niobate crystal; the center wavelength of this pair of pulses is around 1.45 µm. We obtained 40 nJ THz pulses using 38 µJ, 0.85 ns pump pulses.

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