SCATTERING OF AN OFF-AXIS GAUSSIAN-BEAM BY A DIELECTRIC CYLINDER COMPARED WITH A RIGOROUS ELECTROMAGNETIC APPROACH

Authors
ZIMMERMANN E DANDLIKER R SOULI N KRATTIGER B
Citation
E. Zimmermann et al., SCATTERING OF AN OFF-AXIS GAUSSIAN-BEAM BY A DIELECTRIC CYLINDER COMPARED WITH A RIGOROUS ELECTROMAGNETIC APPROACH, Journal of the Optical Society of America. A, Optics, image science,and vision., 12(2), 1995, pp. 398-403
Citations number
15
Categorie Soggetti
Optics
Journal title
Journal of the Optical Society of America. A, Optics, image science,and vision. → ACNP
ISSN journal
10847529
Volume
12
Issue
2
Year of publication
1995
Pages
398 - 403
Database
ISI
SICI code
1084-7529(1995)12:2<398:SOAOGB>2.0.ZU;2-8
Abstract
For the development of new kinds of refractive-index sensors for capil lary electrophoresis, we investigated the scattering of an off-axis in cident Gaussian beam by a homogeneous dielectric cylinder at normal in cidence. The numerical calculations are based on the exact solution of the Helmholtz equation in circular cylindrical results even when the beam dimensions are of the order of the wavelength of light and when t he beam diameter is greater than the diameter of the dielectric cylind er. This rigorous electromagnetic treatment is verified by experimenta l measurements for cylinders with diameters from 5 to 100 mu m.