Abstract
We present a general formalism for describing the optical response of spherical nano-objects located in the focus region of a tightly convergent light beam. The theory can be applied to any polarized light beam emerging from axially symmetric focusing optical devices. The approach is based on the generalized Mie theory equations and the expansion of the angular spectrum plane-wave decomposition of the beam in terms of vector spherical harmonics. The numerical efficiency of the formalism is exemplified in the case of reflecting microscope objectives, in the context of single-particle experiments based on the spatial modulation spectroscopy technique, for spherical gold spheres and pairs of nearly touching gold particles.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
