UMass Amherst researchers have developed a laser-based holographic alignment method that could revolutionize overlay accuracy ...

The approach uses lasers and holograms to detect misalignments as small as 0.017 nanometers. Researchers at the University of ...

meaning you can see its holographic projections using air as the medium. Here's how it works. The machine uses a 1kHz pulse laser and sends the laser through a 3D scanner, which reflects and ...