Optical path clearing and enhanced transmission through colloidal suspensions.
Opt Express
; 18(16): 17130-40, 2010 Aug 02.
Article
in En
| MEDLINE
| ID: mdl-20721102
We utilize advanced laser fields to clear a path through a dynamic turbid medium, a concept termed "Optical path clearing (OPC)." Particles are evacuated from a volume of the medium using the gradient and/or scattering forces due to an applied laser field with a suitably tailored spatial profile. Our studies encompass both an analytical model and proof-of-principle experiments where paths are cleared in dense bulk colloidal suspensions. Based on our results we suggest that high-performance and high efficiency OPC will be achieved by multiple-step clearing using dynamic laser fields based on Airy or inverted axicon beams.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Suspensions
/
Signal Processing, Computer-Assisted
/
Electronics
/
Lasers
/
Light
Language:
En
Journal:
Opt Express
Year:
2010
Document type:
Article