To spread some holiday spirit this year, we have decided to send four special newsletters showcasing insights, tips and tricks, and more. In our first Seasonal Newsletter we show you how to make your work with VirtualLab Fusion even more efficient!

To spread some holiday spirit this year, we have decided to send four special newsletters showcasing insights, tips and tricks, and more.

In the first example, a holographic optical element (HOE) is designed to convert the output of a fiber into Bessel beam directly; the second example investigates the effect from the round-tip of the axicon on the generated Bessel beams.

Bessel beams, because of their unique property of a tight longitudinal focus, are found useful for material processing, optical tweezing, and other applications. In VirtualLab Fusion, we demonstrate the generation of such beams. In the first example, a holographic optical element (HOE) is designed to convert the output of a fiber into a Bessel beam directly; the second example investigates the effect from the round-tip of the axicon on the generated Bessel beams.

We investigate in particular the coherence properties of the extended source by checking the change in the contrast of the interference fringes.

The double-slit interference experiment was originally conducted by Thomas Young in the early 1800s. It shows the wave-like nature of light and serves as an important technique for spatial coherence measurements. We reproduce Young’s experiment in VirtualLab Fusion, with both a single point source and an extended source. We investigate in particular the coherence properties of the extended source by checking the change in the contrast of the interference fringes.