Optical eigenmodes; exploiting the quadratic nature of the energy flux and of scattering interactions.
Opt Express
; 19(2): 933-45, 2011 Jan 17.
Article
in En
| MEDLINE
| ID: mdl-21263633
We report a mathematically rigorous technique which facilitates the optimization of various optical properties of electromagnetic fields in free space and including scattering interactions. The technique exploits the linearity of electromagnetic fields along with the quadratic nature of the intensity to define specific Optical Eigenmodes (OEi) that are pertinent to the interaction considered. Key applications include the optimization of the size of a focused spot, the transmission through sub-wavelength apertures, and of the optical force acting on microparticles. We verify experimentally the OEi approach by minimising the size of a focused optical field using a superposition of Bessel beams.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Refractometry
/
Scattering, Radiation
/
Energy Transfer
/
Optical Tweezers
/
Models, Theoretical
Language:
En
Journal:
Opt Express
Year:
2011
Document type:
Article