Attosecond transient absorption spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy

Taran Driver; Siqi Li; Elio G. Champenois; Joseph Duris; Daniel Ratner; Thomas J. Lane; Philipp Rosenberger; Andre Al-Haddad; Vitali Averbukh; Toby Barnard; Nora Berrah; Christoph Bostedt; Philip H. Bucksbaum; Ryan Coffee; Louis F. DiMauro; Li Fang; Douglas Garratt; Averell Gatton; Zhaoheng Guo; Gregor Hartmann; Daniel Haxton; Wolfram Helml; Zhirong Huang; Aaron LaForge; Andrei Kamalov; Matthias F. Kling; Jonas Knurr; Ming-Fu Lin; Alberto A. Lutman; James P. MacArthur; Jon P. Marangos; Megan Nantel; Adi Natan; Razib Obaid; Jordan T. O'Neal; Niranjan H. Shivaram; Aviad Schori; Peter Walter; Anna Li Wang; Thomas J. A. Wolf; Agostino Marinelli; James P. Cryan

doi:10.1039/C9CP03951A

Attosecond transient absorption spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy

Taran Driver,

†^abc Siqi Li,

†^bd Elio G. Champenois,^a Joseph Duris,^b Daniel Ratner,^b Thomas J. Lane,^b Philipp Rosenberger,^aef Andre Al-Haddad,^g Vitali Averbukh,^c Toby Barnard,^c Nora Berrah,

^h Christoph Bostedt,^gi Philip H. Bucksbaum,^adj Ryan Coffee,^ab Louis F. DiMauro,^k Li Fang,^k Douglas Garratt,^c Averell Gatton,^b Zhaoheng Guo,^ad Gregor Hartmann,^lo Daniel Haxton,^m Wolfram Helml,

ⁿ Zhirong Huang,^bd Aaron LaForge,

^h Andrei Kamalov,^ad Matthias F. Kling,

^aef Jonas Knurr,^a Ming-Fu Lin,^b Alberto A. Lutman,^b James P. MacArthur,^bd Jon P. Marangos,^c Megan Nantel,^bd Adi Natan,^a Razib Obaid,

^h Jordan T. O'Neal,^ad Niranjan H. Shivaram,

^b Aviad Schori,^a Peter Walter,^b Anna Li Wang,^aj Thomas J. A. Wolf,

^a Agostino Marinelli*^b and James P. Cryan

*^ab

Author affiliations

* Corresponding authors

^a Stanford PULSE Institute, SLAC National Accelerator Laboratory, USA
E-mail: jcryan@slac.stanford.edu

^b SLAC National Accelerator Laboratory, USA
E-mail: marinelli@slac.stanford.edu

^c The Blackett Laboratory, Department of Physics, Imperial College London, UK

^d Department of Physics, Stanford University, USA

^e Max-Planck-Institut für Quantenoptik, Germany

^f Physik Department, Ludwig-Maximilians-Universität Munich, Germany

^g Paul Scherrer Institut, Switzerland

^h Physics Department, University of Connecticut, USA

ⁱ LUXS Laboratory for Ultrafast X-ray Sciences, École Polytechnique Fédérale de Lausanne, Switzerland

^j Department of Applied Physics, Stanford University, USA

^k Department of Physics, The Ohio State University, USA

^l Institut für Physik und CINSaT, Universität Kassel, Germany

^m KLA Tencor Corporation, USA

ⁿ Zentrum für Synchrotronstrahlung, Technische Universität Dortmund, Germany

^o Helmholtz-Zentrum Berlin, Germany

Abstract

The recent demonstration of isolated attosecond pulses from an X-ray free-electron laser (XFEL) opens the possibility for probing ultrafast electron dynamics at X-ray wavelengths. An established experimental method for probing ultrafast dynamics is X-ray transient absorption spectroscopy, where the X-ray absorption spectrum is measured by scanning the central photon energy and recording the resultant photoproducts. The spectral bandwidth inherent to attosecond pulses is wide compared to the resonant features typically probed, which generally precludes the application of this technique in the attosecond regime. In this paper we propose and demonstrate a new technique to conduct transient absorption spectroscopy with broad bandwidth attosecond pulses with the aid of ghost imaging, recovering sub-bandwidth resolution in photoproduct-based absorption measurements.

This article is part of the themed collection: XFELs: cutting edge X-ray light for chemical and material sciences

Physical Chemistry Chemical Physics

Attosecond transient absorption spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy

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Attosecond transient absorption spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy

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