Imaging Ultrafast Dynamical Diffraction Wave Fronts in Strained Si with Coherent X Rays
(2021) In Physical Review Letters 127(15).- Abstract
Dynamical diffraction effects in thin single crystals produce highly monochromatic parallel x-ray beams with a mutual separation of a few microns and a time delay of a few femtoseconds—the so-called echoes. This ultrafast diffraction effect is used at X-Ray Free Electron Lasers in self-seeding schemes to improve beam monochromaticity. Here, we present a coherent x-ray imaging measurement of echoes from Si crystals and demonstrate that a small surface strain can be used to tune their temporal delay. These results represent a first step toward the ambitious goal of strain tailoring new x-ray optics and, conversely, open up the possibility of using ultrafast dynamical diffraction effects to study strain in materials.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/49a7f379-56b5-4c78-8293-fa2147de46df
- author
- Rodriguez-Fernandez, Angel LU ; Diaz, Ana ; Iyer, Anand H.S. ; Verezhak, Mariana ; Wakonig, Klaus ; Colliander, Magnus H. and Carbone, Dina LU
- organization
- publishing date
- 2021-10-08
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 127
- issue
- 15
- article number
- 157402
- publisher
- American Physical Society
- external identifiers
-
- pmid:34677993
- scopus:85116855589
- ISSN
- 0031-9007
- DOI
- 10.1103/PhysRevLett.127.157402
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2021 American Physical Society
- id
- 49a7f379-56b5-4c78-8293-fa2147de46df
- date added to LUP
- 2021-10-26 13:04:28
- date last changed
- 2024-08-25 02:07:44
@article{49a7f379-56b5-4c78-8293-fa2147de46df, abstract = {{<p>Dynamical diffraction effects in thin single crystals produce highly monochromatic parallel x-ray beams with a mutual separation of a few microns and a time delay of a few femtoseconds—the so-called echoes. This ultrafast diffraction effect is used at X-Ray Free Electron Lasers in self-seeding schemes to improve beam monochromaticity. Here, we present a coherent x-ray imaging measurement of echoes from Si crystals and demonstrate that a small surface strain can be used to tune their temporal delay. These results represent a first step toward the ambitious goal of strain tailoring new x-ray optics and, conversely, open up the possibility of using ultrafast dynamical diffraction effects to study strain in materials.</p>}}, author = {{Rodriguez-Fernandez, Angel and Diaz, Ana and Iyer, Anand H.S. and Verezhak, Mariana and Wakonig, Klaus and Colliander, Magnus H. and Carbone, Dina}}, issn = {{0031-9007}}, language = {{eng}}, month = {{10}}, number = {{15}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Imaging Ultrafast Dynamical Diffraction Wave Fronts in Strained Si with Coherent X Rays}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.127.157402}}, doi = {{10.1103/PhysRevLett.127.157402}}, volume = {{127}}, year = {{2021}}, }