Sensitivity of synthetic aperture laser optical feedback imaging.
J Opt Soc Am A Opt Image Sci Vis
; 29(4): 476-85, 2012 Apr 01.
Article
in En
| MEDLINE
| ID: mdl-22472824
ABSTRACT
In this paper, we compare the sensitivity of two imaging configurations, both based on laser optical feedback imaging (LOFI). The first one is direct imaging, which uses conventional optical focalization on target, and the second one is made by a synthetic aperture (SA) laser, which uses numerical focalization. We show that SA configuration allows us to obtain good resolutions with high working distance and that the drawback of SA imagery is that it has a worse photometric balance in comparison to a conventional microscope. This drawback is partially compensated by the important sensitivity of LOFI. Another interest of SA relies on the capacity of getting three-dimensional information in a single x-y scan.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Diagnostic_studies
Language:
En
Journal:
J Opt Soc Am A Opt Image Sci Vis
Year:
2012
Document type:
Article