Sub-Rayleigh dark-field imaging via speckle illumination.
Opt Lett
; 48(6): 1347-1350, 2023 Mar 15.
Article
in En
| MEDLINE
| ID: mdl-36946924
ABSTRACT
We demonstrate sub-Rayleigh dark-field imaging via speckle illumination. Imaging is achieved with second-order autocorrelated measurement by illuminating objects with hollow conical pseudothermal light. Our scheme can work well for highly transparent amplitude objects, pure phase objects, and even more complex transparent objects. The autocorrelated dark-field images show better resolution than intensity-averaged images and an ability in filtering out low-frequency noises.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Opt Lett
Year:
2023
Document type:
Article