[THIS IS A PRESS RELEASE]
By: Eunice Jean C. Patron
A laser reflecting off glass looks like it follows the mirror rule—angle in equals angle out. But with sensitive tools, the spot shifts slightly, no bigger than a strand of hair. This elusive effect, called the Goos–Hänchen (GH) shift, was recently explored by scientists from the UP Diliman College of Science (UPD-CS) in materials that barely absorb light—such as those used in semiconductors and photonics.
