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

By T. Tanabe, K. Suto, J. Nishizawa, Kyosuke Saito, T. Kimura. 2003

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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 θin 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.

Subfields: Astronomy and Astrophysics, Electrical and Electronic Engineering, Spectroscopy

View Paper: https://www.semanticscholar.org/paper/17c0324c46064d6eefccc60677b71f9b3e218be4