Optics.org
daily coverage of the optics & photonics industry and the markets that it serves
Featured Showcases
Laser World of Photonics Showcase
Menu
THz image of razor in FedEx envelope
This terahertz picture shows the razor blade cut-out imaged through the FedEx envelope. The razor blade is 2.9 cm long, so fits within the terahertz illumination area. (Credit: Alan Lee, MIT)
© 2025 SPIE Europe
Top of Page