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Time-resolved second harmonic generation with single-shot phase sensitivity

Tyson, Alexandra L.; Woods, David A.; Verlet, Jan R.R.

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Authors

Alexandra L. Tyson

David A. Woods



Abstract

A time-resolved, phase-sensitive second harmonic generation (SHG) method to probe the excited state dynamics of interfacial species is presented. It is based on an interference measurement between the SHG from a sample and a local oscillator generated at a reference surface in which an entire interference pattern is recorded in a single shot by using a spatially varying phase unit comprised of a pair of wedges that sandwich the reference sample. In combination with 30 kHz modulation of the experiment, shot-to-shot pump-probe measurements are presented. The technique is characterised by measuring the time-resolved change in the amplitude and phase of the interference pattern due to the excited state dynamics of the dye malachite green at the air/water interface. The key attributes of the technique are its excellent phase stability and sensitivity, and relatively short data acquisition times.

Citation

Tyson, A. L., Woods, D. A., & Verlet, J. R. (2018). Time-resolved second harmonic generation with single-shot phase sensitivity. The Journal of Chemical Physics, 149(20), Article 204201. https://doi.org/10.1063/1.5061817

Journal Article Type Article
Acceptance Date Nov 2, 2018
Online Publication Date Nov 28, 2018
Publication Date Nov 28, 2018
Deposit Date Dec 6, 2018
Publicly Available Date Mar 28, 2024
Journal Journal of Chemical Physics
Print ISSN 0021-9606
Electronic ISSN 1089-7690
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 149
Issue 20
Article Number 204201
DOI https://doi.org/10.1063/1.5061817

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Accepted Journal Article (1.1 Mb)
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Copyright Statement
© 2018 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Tyson, Alexandra L., Woods, David A. & Verlet, Jan R. R. (2018). Time-resolved second harmonic generation with single-shot phase sensitivity. The Journal of Chemical Physics 149(20): 204201 and may be found at https://doi.org/10.1063/1.5061817





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