Lenses are, among all optical components, probably the most widely used, and focusing of light is possibly the most typical task in optics. Although it can seem trivial, the behavior of light in a focal region can be complex and is therefore worthy of in-depth investigation. As an example, in the case of focusing with a high-NA objective lens, the focal spot is known to show asymmetry, and consideration of the vectorial nature of light turns out to be necessary. VirtualLab’s representation of light as an electromagnetic wave in a fully vectorial approach enables the analysis of these polarization-dependent effects in detail. Moreover, the properties of light in the focal region can be thoroughly investigated with the help of different detectors. In combination with the Parameter Run feature the field evolution through the focal region can be analyzed as well.
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.
A laser diode with asymmetric divergence and astigmatism is first collimated and then focused. Evolution of the field in the focal region is investigated in detail.
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Newsletter/News focal region, investigation, lenses, lens focusing, high na, aspherical lens, LightTrans, VirtualLab As an example, in the case of focusing with a high-NA objective lens, the focal spot is known to show asymmetry, and consideration of the vectorial nature of light turns out to be necessary. VirtualLab’s representation of light as an electromagnetic wave in a fully vectorial approach enables the analysis of these polarization-dependent effects in detail. Moreover, the properties of light in the focal region can be thoroughly investigated with the help of different detectors. In combination with the Parameter Run feature the field evolution through the focal region can be analyzed as well.
