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Tailoring single-cycle electromagnetic pulses in the 2–9 THz frequency range using DAST/SiO2 multilayer structures pumped at Ti:sapphire wavelength

Published inOptics express, vol. 22, no. 18, 21618
Publication date2014
Abstract

We present a numerical parametric study of single-cycle electromagnetic pulse generation in a DAST/SiO2 multilayer structure via collinear optical rectification of 800 nm femtosecond laser pulses. It is shown that modifications of the thicknesses of the DAST and SiO2 layers allow tuning of the average frequency of the generated THz pulses in the frequency range from 3 to 6 THz. The laser-to-THz energy conversion efficiency in the proposed structures is compared with that in a bulk DAST crystal and a quasi-phase-matching periodically poled DAST crystal and shows significant enhancement.

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Citation (ISO format)
STEPANOV, Andréy et al. Tailoring single-cycle electromagnetic pulses in the 2–9 THz frequency range using DAST/SiO<sub>2</sub> multilayer structures pumped at Ti:sapphire wavelength. In: Optics express, 2014, vol. 22, n° 18, p. 21618. doi: 10.1364/OE.22.021618
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ISSN of the journal1094-4087
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