Common to optical metrology in many modern systems, the Fizeau design uses a fixed, on-axis coherent point source to illuminate the interferometric cavity. For the most part, it works very well. While ...

A state-of-the-art experiment at the US Department of Energy’s (DoE) Fermi National Accelerator Laboratory is one step closer to collecting experimental data. Fermilab has announced that it has ...

Ten years ago, astronomers made an epic discovery with the Laser Interferometer Gravitational-Wave Observatory. Cosmology hasn’t been the same since, and it might not stay that way much longer. Out ...

Learn how to design and craft your own custom laser-cut sign using the Creality Falcon A1. This step-by-step laser tutorial will guide you through the entire process, from setup to the perfect ...

Make an inexpensive laser interferometer. An optical interferometer splits a beam of light into two beams that travel at right angles, then recombines them. The resulting interference pattern reveals ...

A major limitation of laser interferometers using continuous wave lasers are parasitic light fields, such as ghost beams, scattered or stray light, that can cause nonlinear noise. This is especially ...