Electro-optic polymers for THz applications
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Sinyukov, Alexander M.; Leahy, Megan R.; Hayden, L. Michael; Electro-optic polymers for THz applications; Proceedings Volume 5593, Nanosensing: Materials and Devices, 29 December, 2004; https://doi.org/10.1117/12.573839
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©2004 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic
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Abstract
Electro-optic (EO) polymers are promising materials to be used as THz emitters and sensors due to their high nonlinear coefficients and good phase-matching conditions. We demonstrate efficient THz generation from an 80 μm thick EO polymer emitter which is equivalent to that of a 1000 μm thick ZnTe standard. Also, this kind of EO polymer allows a generation up to 20 THz with ultra-short laser pulses. We have observed resonance-enhanced THz generation in another kind of EO polymer composite near its absorption maximum. Due to a sharp resonance of the EO coefficient near the absorption maximum of the material, the amplitude of THz field generated from a 3.1 μm thick film of this composite is 15% larger than that from a 1000 μm thick ZnTe standard. The estimated EO coefficient of this composite at 800 nm is over 1200 pm/V.