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Attosecond transient absorption spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy.
- Source :
-
Physical chemistry chemical physics : PCCP [Phys Chem Chem Phys] 2020 Feb 07; Vol. 22 (5), pp. 2704-2712. Date of Electronic Publication: 2019 Dec 03. - Publication Year :
- 2020
-
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.
Details
- Language :
- English
- ISSN :
- 1463-9084
- Volume :
- 22
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Physical chemistry chemical physics : PCCP
- Publication Type :
- Academic Journal
- Accession number :
- 31793561
- Full Text :
- https://doi.org/10.1039/c9cp03951a