Jentzch, T, Jupner, HJ, Ashworth, SH ORCID: https://orcid.org/0000-0003-4213-3541 and Elsaesser, T
(1996)
Second-order nonlinearities of polycrystalline molecular films studied on a 20-fs time scale.
Optics Letters, 21 (7).
pp. 492-494.
ISSN 0146-9592
Abstract
Second-harmonic generation in polycrystalline pentacene films of submicrometer thickness by pulses of 18-fs duration is studied. We observe a second-order nonlinearity of as much as d(eff) = 0.045 pm/V, which is resonantly enhanced at wavelengths near 790 nm. Off-resonance autocorrelation studies demonstrate a quasi-instantaneous nonlinear response of the material, whereas experiments on resonance point to a finite response time T-2 of the order of 15 fs.
Item Type: | Article |
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Faculty \ School: | Faculty of Science > School of Chemistry |
Depositing User: | Rachel Smith |
Date Deposited: | 12 Sep 2011 08:28 |
Last Modified: | 24 Oct 2022 04:08 |
URI: | https://ueaeprints.uea.ac.uk/id/eprint/29534 |
DOI: | 10.1364/OL.21.000492 |
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