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Nonlinear optics

High harmonics with a twist

Nature Physics volume 8, pages 707–708 (2012)Cite this article

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Optical vortices usually break up when they propagate through nonlinear media. Now, however, experiments show the helical structure of an infrared beam can survive a high-harmonic-generation process. This could lead to a table-top source of attosecond helical light pulses.

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Figure 1: High-harmonic helical light.

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  1. Serguei Patchkovskii and Michael Spanner are at the National Research Council, Canada, 100 Sussex Drive, Ottawa, Ontario, K1A 0R6, Canada,

    Serguei Patchkovskii & Michael Spanner

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  1. Serguei Patchkovskii
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  2. Michael Spanner
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Correspondence to Serguei Patchkovskii or Michael Spanner.

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Patchkovskii, S., Spanner, M. High harmonics with a twist. Nature Phys 8, 707–708 (2012). https://doi.org/10.1038/nphys2415

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