Impact of wave front and coherence optimization in coherent diffractive imaging.
Opt Express
; 21(9): 11441-7, 2013 May 06.
Article
in En
| MEDLINE
| ID: mdl-23670000
ABSTRACT
We present single shot nanoscale imaging using a table-top femtosecond soft X-ray laser harmonic source at a wavelength of 32 nm. We show that the phase retrieval process in coherent diffractive imaging critically depends on beam quality. Coherence and image fidelity are measured from single-shot coherent diffraction patterns of isolated nano-patterned slits. Impact of flux, wave front and coherence of the soft X-ray beam on the phase retrieval process and the image quality are discussed. After beam improvements, a final image reconstruction is presented with a spatial resolution of 78 nm (half period) in a single 20 fs laser harmonic shot.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
X-Ray Diffraction
/
Algorithms
/
Image Interpretation, Computer-Assisted
/
Image Enhancement
/
Artifacts
/
Nanoparticles
Language:
En
Journal:
Opt Express
Journal subject:
OFTALMOLOGIA
Year:
2013
Document type:
Article
Affiliation country: