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arXiv · 1409.2958

Terahertz radiation by optical rectification in a hydrogen-bonded organic molecular ferroelectric crystal, 2-phenylmalondialdehyde

W. Guan·N. Kida·M. Sotome·Y. Kinoshita·R. Takeda·A. Inoue·S. Horiuchi·H. Okamoto
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Abstract

Terahertz radiation by optical rectification has been observed at room temperature in a hydrogen-bonded organic molecular ferroelectric crystal, 2-phenyl malondialdehyde (PhMDA). The radiated electromagnetic wave consisted of a single-cycle terahertz pulse with a temporal width of $\sim$ 0.5 ps. The terahertz radiation amplitude divided by the sample thickness in PhMDA was nearly equivalent to that in a typical terahertz wave emitter ZnTe. This is attributable to a long coherence length in the range of 130 $\sim$ 800 $μ$m for the terahertz radiation from PhMDA. We also discussed the possibility of PhMDA as a terahertz wave emitter in terms of the phase-matching condition.

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W. Guan, N. Kida, M. Sotome, Y. Kinoshita, R. Takeda, A. Inoue, S. Horiuchi, H. Okamoto. 2014-09-10. Terahertz radiation by optical rectification in a hydrogen-bonded organic molecular ferroelectric crystal, 2-phenylmalondialdehyde. https://doi.org/10.7567/jjap.53.09pd07

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