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Opt Lett. 2015 Jul 01;40(13):3205-8. doi: 10.1364/OL.40.003205.

Fourier transform holography with high harmonic spectra for attosecond imaging applications.

Optics letters

Gareth O Williams, A I Gonzalez, S Künzel, L Li, M Lozano, E Oliva, B Iwan, S Daboussi, W Boutu, H Merdji, M Fajardo, Ph Zeitoun

PMID: 26125403 DOI: 10.1364/OL.40.003205

Abstract

We demonstrate a method of using a Fourier holographic technique to utilize attosecond soft x-ray pulses to image nanometer-scale objects. A discrete frequency comb of laser-generated high-order harmonics, yielding a train of attosecond pulses, has been used to record spatially and spectrally resolved images. The individual wavelengths were also combined to form a single image, albeit with lower spatial resolution, demonstrating the applicability of the method to using isolated attosecond pulses with continuous bandwidths.

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