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Article . 2017 . Peer-reviewed
Full-Text: https://eprints.lancs.ac.uk/id/eprint/88520/1/THz.pdf
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Optics Express
Article . 2017 . Peer-reviewed
License: https://doi.org/10.1364/OA_License_v1#VOR-OA
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Optics Express
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Optics Express
Article . 2018
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https://dx.doi.org/10.1364/oe....
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Enhancement of THz generation by feedback-optimized wavefront manipulation

descriptionPublicationkeyboard_double_arrow_right Article 11 Jul 2017 United Kingdom English Publisher:Optica Publishing GroupJournal:Optics Express, volume 25, page 17,271 (eissn: 1094-4087, Copyright policy )
Authors: Hah, J.; Jiang, W.; He, Z-H.; Nees, J. A.; Hou, B.; Thomas, A. G. R.; Krushelnick, K.;

doi: 10.1364/oe.25.017271

pmid: 28789220

Enhancement of THz generation by feedback-optimized wavefront manipulation

Abstract

We apply active feedback optimization methods to pyroelectric measurements of a THz signal generated by four wave mixing in air using 1 mJ to 12 mJ, 35 fs laser pulses operating at 12 kHz repetition rate. A genetic algorithm, using the THz signal as a figure of merit, determines the voltage settings to a deformable mirror and results in up to a 6 fold improvement in the THz signal compared with settings optimized for the best focus. It is possible to optimize for different THz generation processes using this technique.

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United Kingdom
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Keywords

530, 620

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 12
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    		 Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    		 Top 10%
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
12
Top 10%
Average
Top 10%
Green
gold