title: Tailoring single-cycle electromagnetic pulses in the 2-9 THz frequency range using DAST/SiO₂ multilayer structures pumped at Ti:sapphire wavelength.
abstract: We present a numerical parametric study of single-cycle electromagnetic pulse generation in a DAST/SiO₂multilayer structure via collinear optical rectification of 800 nm femtosecond laser pulses. It is shown that modifications of the thicknesses of the DAST and SiO₂layers 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.
authors.forename: Andrei G
authors.initials: AG
authors.lastname: Stepanov
authors.forename: Andrii
authors.initials: A
authors.lastname: Rogov
authors.forename: Luigi
authors.initials: L
authors.lastname: Bonacina
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Wolf
authors.forename: Christoph P
authors.initials: CP
authors.lastname: Hauri