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Conferences > CLEO_SI > 2015 > SM2H > SM2H.4

Generation of Elliptically Polarized Half-Cycle Terahertz Pulses Generated by 6H-SiC Large Aperture Photoconductive Antenna

X. Ropagnol, N. Ranjkesh, S. M. Raeis-Zadeh, S. Safavi-Naeini, M. Bouvier, C.-Y. Côté, M. Reid, M. A. Gauthier, and T. Ozaki

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Abstract

We demonstrate the generation of half-cycle terahertz pulses with elliptical polarization and 167 nJ pulse energy. These pulses have been generated using a 6H-SiC Large Aperture Photo-conductive Antenna (LAPCA) covered with a binary phase mask and excited by a 400 nm laser. We show that by changing the thickness of the phase mask and the geometry of the LAPCA it is possible to generate intense half-cycle terahertz pulses with circular polarization.

© 2015 Optical Society of America

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