Singleshot polychromatic coherent diffractive imaging with a high-order harmonic source
(2020) In Optics Express 28(1). p.394-404- Abstract
Singleshot polychromatic coherent diffractive imaging is performed with a high-intensity high-order harmonic generation source. The coherence properties are analyzed and several reconstructions show the shot-to-shot fluctuations of the incident beam wavefront. The method is based on a multi-step approach. First, the spectrum is extracted from double-slit diffraction data. The spectrum is used as input to extract the monochromatic sample diffraction pattern, then phase retrieval is performed on the quasi-monochromatic data to obtain the sample's exit surface wave. Reconstructions based on guided error reduction (ER) and alternating direction method of multipliers (ADMM) are compared. ADMM allows additional penalty terms to be included in... (More)
Singleshot polychromatic coherent diffractive imaging is performed with a high-intensity high-order harmonic generation source. The coherence properties are analyzed and several reconstructions show the shot-to-shot fluctuations of the incident beam wavefront. The method is based on a multi-step approach. First, the spectrum is extracted from double-slit diffraction data. The spectrum is used as input to extract the monochromatic sample diffraction pattern, then phase retrieval is performed on the quasi-monochromatic data to obtain the sample's exit surface wave. Reconstructions based on guided error reduction (ER) and alternating direction method of multipliers (ADMM) are compared. ADMM allows additional penalty terms to be included in the cost functional to promote sparsity within the reconstruction.
(Less)
- author
- organization
- publishing date
- 2020-01-06
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Optics Express
- volume
- 28
- issue
- 1
- pages
- 11 pages
- publisher
- Optical Society of America
- external identifiers
-
- pmid:32118967
- scopus:85078017718
- ISSN
- 1094-4087
- DOI
- 10.1364/OE.28.000394
- language
- English
- LU publication?
- yes
- id
- 2bd50fab-fb2f-4d66-977d-1924a8fc42cb
- date added to LUP
- 2020-03-09 09:10:04
- date last changed
- 2024-06-26 12:10:57
@article{2bd50fab-fb2f-4d66-977d-1924a8fc42cb, abstract = {{<p>Singleshot polychromatic coherent diffractive imaging is performed with a high-intensity high-order harmonic generation source. The coherence properties are analyzed and several reconstructions show the shot-to-shot fluctuations of the incident beam wavefront. The method is based on a multi-step approach. First, the spectrum is extracted from double-slit diffraction data. The spectrum is used as input to extract the monochromatic sample diffraction pattern, then phase retrieval is performed on the quasi-monochromatic data to obtain the sample's exit surface wave. Reconstructions based on guided error reduction (ER) and alternating direction method of multipliers (ADMM) are compared. ADMM allows additional penalty terms to be included in the cost functional to promote sparsity within the reconstruction.</p>}}, author = {{Malm, Erik and Wikmark, Hampus and Pfau, Bastian and Villanueva-Perez, Pablo and Rudawski, Piotr and Peschel, Jasper and Maclot, Sylvain and Schneider, Michael and Eisebitt, Stefan and Mikkelsen, Anders and L'Huillier, Anne and Johnsson, Per}}, issn = {{1094-4087}}, language = {{eng}}, month = {{01}}, number = {{1}}, pages = {{394--404}}, publisher = {{Optical Society of America}}, series = {{Optics Express}}, title = {{Singleshot polychromatic coherent diffractive imaging with a high-order harmonic source}}, url = {{http://dx.doi.org/10.1364/OE.28.000394}}, doi = {{10.1364/OE.28.000394}}, volume = {{28}}, year = {{2020}}, }