Tunable terahertz wave generation in the 3- to 7-THz region from GaP

Tanabe, T.; Suto, K.; Nishizawa, J.; Saito, K.; Kimura, T.
July 2003
Applied Physics Letters;7/14/2003, Vol. 83 Issue 2, p237
Academic Journal
Following the generation of tunable terahertz waves from GaP in the 0.5- to 3-THz region, we extended the frequency region up to 7 THz, using an optical parametric oscillator and a YAG laser (1.064 μm). The tuning angle θ[SUBin] increased superlinearly in the 3- to 7-THz region, so that the total) reflection took place at 5 THz, which was avoided by rotating the crystal relative to the incident optic axis. As a result, terahertz output peak powers of 100 mW at up to 5.6 THz and 3 mW at 7 THz were obtained, at pump and signal energies of 3 mJ, respectively.


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