Focusing of Cylindrical Vector Beams by a High-NA Objective Lens

Abstract


The cylindrical vector beams are studied intensively in recent years. The small focal spot can be obtained by radially polarized beam for high-resolution applications. A donut-shaped focal spot can be obtained by azimuthally polarized beam, which has the potential for advanced imaging and lithography. In VirtualLab Fusion, the focusing of such cylindrical vector beams can be modeled and analyzed straightforwardly. The focal spot is demonstrated and analyzed in a fully vectorial manner.

VirtualLab Fusion Configuration

  • VirtualLab Fusion VirtualLab Fusion

Are you interested in further reading?

Tutorial

Analyzing High-NA Objective Lens Focusing

High-NA objective lenses are widely used in optical lithography, microscopy, etc. Consideration of the vectorial nature of light in the simulation of the focusing is of great importance.

Tutorial

Usage of Debye-Wolf Integral Calculator

The Debye-Wolf integral calculator in VirtualLab Fusion computes the vectorial field near focus based on an idealized model, when the exact specifications of the objective lens are not known.

Use Case

Resolution Investigation for Microscope Objective Lenses by Rayleigh Criterion

Following the Rayleigh criterion, we investigate the resolution of three microscope objective lenses with different numerical apertures.