Complex source beam: A tool to describe highly focused vector beams analytically
- Max Planck Institute for the Science of Light, Guenther-Scharowsky-Str. 1, Bau 24, D-91058 Erlangen, Germany. (Germany)
- Institute of Optics, Information, and Photonics, University Erlangen-Nuremberg, Staudtstrasse 7, D-91058, Erlangen (Germany)
The scalar-complex-source model is used to develop an accurate description of highly focused radially, azimuthally, linearly, and circularly polarized monochromatic vector beams. We investigate the power and full beam widths at half maximum of vigorous Maxwell equation solutions. The analytical expressions are employed to compare the vector complex source beams with the real beams produced by various high-numerical-aperture (NA) focusing systems. We find a parameter set for which the spatial extents of the analytical beams are the same as those of experimentally realized ones. We ensure the same shape of the considered beams by investigating an overlap of the complex source beams with high-NA beams. We demonstrate that the analytical expressions are good approximations for realistic highly focused beams.
- OSTI ID:
- 21528980
- Journal Information:
- Physical Review. A, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevA.82.063820; (c) 2010 American Institute of Physics; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Assessment of Impurities in Neptunium Metal Using Double-Focusing SF-ICP-MS
Subcycle Pulsed Focused Vector Beams
Related Subjects
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
ANALYTIC FUNCTIONS
APPROXIMATIONS
BEAM PROFILES
BEAMS
FOCUSING
MATHEMATICAL SOLUTIONS
MAXWELL EQUATIONS
MONOCHROMATIC RADIATION
SCALARS
VECTORS
CALCULATION METHODS
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
FUNCTIONS
PARTIAL DIFFERENTIAL EQUATIONS
RADIATIONS
TENSORS